Heart disorder

This trial compares two types of patches used to close the artery after carotid endarterectomy, a surgery that removes blockages in the neck artery to prevent stroke. The Accuseal patch, a newer synthetic option, is tested against the Bovine Pericardial patch, which has been used…

This trial tests whether using cryoballoon ablation as the first treatment for persistent atrial fibrillation (AF) is more effective and safer than starting with anti-arrhythmic drugs. Adults aged 18-75 with symptomatic persistent AF and a structurally normal heart are eligible. …

This trial compares two types of drug-eluting stents—tiny mesh tubes that prop open arteries—in people with completely blocked coronary arteries. One stent uses a coating that dissolves over time (bioresorbable polymer) to release the drug sirolimus, while the other has a permane…

This study tests whether regular video calls with a nurse can help people with heart failure manage their condition better than audio-only calls. About 140 adults with heart failure will be randomly assigned to receive either video or audio calls at 7, 30, 60, 180, and 365 days a…

This trial tests whether a structured support program can help people with coronary artery disease maintain regular exercise after completing cardiac rehabilitation. Participants receive group counseling calls, personal phone check-ins, and introductions to community exercise pro…

This trial tests whether sacubitril/valsartan, a newer heart failure medication, is safer and more effective for the kidneys than ramipril, an older ACE inhibitor, in people hospitalized with acute decompensated heart failure who also have chronic kidney disease. About 515 partic…

This study tests whether a diabetes drug called dapagliflozin can help people with heart failure who also develop kidney injury recover faster. About 30 adults will take the drug or usual care for three days. The main goal is to see if a larger trial is possible, not to prove the…

This study tests a new device called the Doraya Catheter for people hospitalized with acute heart failure who still have too much fluid in their body even after taking water pills (diuretics). The catheter is designed to help remove the excess fluid. The study includes 30 adults …

This Phase 3b study is testing whether the drug benralizumab (Fasenra) can allow people with severe eosinophilic asthma to safely reduce their daily maintenance medications. About 504 participants aged 12-75 in China will try to step down from drugs like inhaled steroids or long-…

This study tests whether giving a drug called sitaxsentan during and after heart bypass surgery can improve blood flow and heart function in patients with a weakened heart (low ejection fraction). The drug blocks a hormone that can narrow blood vessels and strain the heart after …

This trial tests whether injecting a local anesthetic into a nerve cluster in the neck—called a stellate ganglion block—can help stop dangerous heart rhythms in people who suffer a cardiac arrest outside a hospital. The study includes adults whose heart stops with a shockable rhy…

This study follows up to 300 people with advanced heart failure in South Korea who receive a HeartMate 3, a mechanical pump that helps the heart circulate blood. Researchers will track how long patients survive without a debilitating stroke or the need for a pump replacement, as …

This study looks at why the heart failure drug LCZ696 (sacubitril/valsartan) can cause a sudden drop in blood pressure when people first start taking it. The researchers think a natural chemical called bradykinin, which the drug prevents from breaking down, might be responsible. …

This pilot study tested whether community pharmacists can manage blood thinner therapy for older adults (60+) with atrial fibrillation who are at high risk for stroke but not on optimal treatment. Fourteen participants received pharmacist-led care for 3 months, then were followed…

This trial tests whether a cardiac rehabilitation program based on a socio-ecological model can improve recovery in adults who have had a first heart attack and undergone a stent procedure. The program goes beyond standard care by providing guidance on exercise, diet, medication,…

This trial tests a new device that uses sound waves to break up calcium deposits in the heart's arteries, which can harden and narrow them. The study includes adults with coronary artery calcification who are eligible for a procedure to open blocked arteries. The goal is to see i…

This study observes Korean adults with chronic heart failure (NYHA class II-IV) who are starting Jardiance (empagliflozin) for the first time. The main goal is to track the drug's safety in everyday clinical practice, including any side effects or serious reactions. Researchers w…

This early-stage trial is testing an investigational drug called SHR-2004, given as multiple injections under the skin, in about 10 adults with atrial fibrillation (an irregular heartbeat). The main goal is to see if the drug is safe and tolerable, and to learn how it moves throu…

This trial asks whether one way of setting a breathing machine is better than another for children born with a hole in the heart who are having surgery to close it. The hole lets extra blood flow to the lungs, which can make them stiff and harder to inflate. During surgery, a mac…

This study tests a new stenting technique called double kissing nano-culotte for people with complex blockages in heart arteries. The procedure uses two stents with minimal overlap to keep arteries open. Researchers will track 12 patients for heart attacks, repeat procedures, or …

This trial tests whether a newer type of heart ablation, called pulsed-field ablation, can effectively isolate the pulmonary veins in people with paroxysmal atrial fibrillation while using very little or no X-ray guidance. The procedure uses the Farapulse system with a special ma…

This study tested a device called iCLAS™ that uses extreme cold to destroy tiny areas of heart tissue causing persistent atrial fibrillation (AFib). 215 adults with AFib lasting more than 7 days but less than a year received the procedure. Researchers tracked safety issues like h…

This early-stage trial is testing a new gene therapy called AB-1002 in people with advanced heart failure (NYHA Class III). The therapy is given as a single infusion directly into the heart's blood vessels, aiming to deliver a gene that may help heart muscle pump more effectively…

This study tests whether the drug APX-115 can prevent kidney injury caused by contrast dye used in heart procedures. About 230 adults with kidney disease will receive either the drug or a placebo before and after their procedure. The goal is to see if the drug reduces kidney dama…

This study tested a new device called the Volt PFA System, which uses pulsed field ablation to treat atrial fibrillation (AF), a common heart rhythm problem. Researchers enrolled 392 people with symptomatic AF that didn't respond to medication. The goal was to see if the procedur…

This phase 3 trial investigates whether N-acetyl cysteine (NAC), an antioxidant supplement, can improve recovery in people hospitalized with an acute ischemic stroke. Participants receive either NAC or a placebo (saline) shortly after admission, and researchers track their neurol…

This trial tests a new type of pacemaker for people with heart failure who are having coronary bypass surgery. The pacemaker is designed to mimic a natural pattern called respiratory sinus arrhythmia, where the heart rate speeds up when breathing in and slows down when breathing …

This trial tests whether a new device called SynFlow 3.0 can safely support the heart during high-risk angioplasty (a procedure to open blocked coronary arteries) as well as the standard VA-ECMO device. About 222 people with severe coronary artery disease and a weakened heart (ej…

This trial asks whether giving the thyroid hormone T3 to people with ischemic heart failure is safe and can improve heart function. Participants with reduced pumping ability will receive oral T3 twice daily for five days under medical supervision, with follow-up over a year. A co…

This study tests whether adults with heart failure who have an implanted pulmonary artery pressure sensor can safely adjust their own diuretic (water pill) doses. Participants follow a simple guide to change their medication based on daily pressure readings sent to their phone or…

This study tested a new way to treat paroxysmal atrial fibrillation (a type of irregular heartbeat) using pulsed field energy instead of standard radiofrequency. 292 adults with drug-resistant AF took part. The goal was to see if the new method is faster, safer, and more effectiv…

This study tested different treatments for autonomic dysfunction, including POTS, in 381 adults with Long COVID. It compared non-drug approaches and medications to see which best eased symptoms like rapid heart rate and dizziness. The goal was to find effective ways to manage the…

This study tests whether intravenous immunoglobulin (IVIG) can reduce symptoms of autonomic dysfunction—such as dizziness, rapid heartbeat, and fatigue—in people with long COVID. Two hundred participants will receive either IVIG or a placebo (saline) for 9 months, plus coordinate…

This trial tests whether adding a chloride supplement (lysine chloride) to standard IV diuretics helps people with acute heart failure get rid of excess fluid more effectively. Participants take the supplement or a placebo for 7 days while receiving usual care. The study measures…

This trial tests whether doctors using mixed reality goggles (HoloLens 2.0) can perform MitraClip heart valve repair more efficiently and with less stress. Twenty adults with leaky mitral valves will undergo the standard clip procedure, but the surgeon will also wear a headset th…

This trial tests whether a wearable ECG patch can help people recover better after heart surgery. Participants wear the MEMO Patch, which continuously records heart signals and activity, while completing a cardiac rehabilitation program that starts in the hospital and continues a…

This phase 2 trial tests whether vericiguat, a drug already used for heart failure, can improve blood vessel function in people with vasospastic angina—a type of chest pain caused by spasms in the heart's small arteries, not by blockages. About 57 adults with frequent angina symp…

This trial investigates whether a single injection of selatogrel can quickly prevent platelets from clumping together in people with stable coronary artery disease. Researchers are also checking how fast the drug works, how long it lasts, and whether injecting it in the thigh or …

This phase 2 trial tests whether a single injection of selatogrel can rapidly prevent platelets from clumping together in adults having a heart attack. Participants receive either an 8 mg or 16 mg dose in the thigh, and researchers measure how quickly platelet activity drops. The…

This trial tests whether empagliflozin, a drug already used for diabetes and heart failure, can prevent the heart muscle from thickening or developing fibrosis in people with moderate aortic stenosis. Participants will receive either empagliflozin or standard care for six months,…

This trial tests whether a special compression device called NewMan can reduce bleeding and bruising after a shoulder artery procedure compared to a standard pressure bandage. The study involves 229 adults with blocked leg arteries who need a catheter inserted through the arm. Do…

This trial tests whether a newer cryoballoon device, PolarX, works as well as the standard Arctic Front device for treating paroxysmal atrial fibrillation (a type of irregular heartbeat). About 200 people having their first pulmonary vein isolation procedure will be randomly assi…

This trial tests a new replacement heart valve, the Neovasc Tiara, that is delivered through a small tube (catheter) inserted into the chest. It is designed for people with severe mitral regurgitation—a leaky heart valve—who are too high-risk for traditional open-heart surgery. T…

This trial examines how two standard heart failure medications—bisoprolol (a beta blocker) and SGLT2 inhibitors (dapagliflozin or empagliflozin)—are processed by the body during an acute decompensated heart failure episode. Researchers will measure drug levels and heart function …

This pilot trial tests whether nurse-led motivational interviewing — a counseling style that strengthens a person's own motivation to change — can help adults with heart failure improve self-care behaviors like diet, medication adherence, and symptom monitoring. Participants in O…

This trial tests whether the gas xenon can reduce heart muscle damage during coronary artery bypass surgery compared to two standard anesthetics: sevoflurane and propofol. About 500 adults with coronary artery disease scheduled for elective bypass surgery will be randomly assigne…

This pilot study tests a new type of stent—a drug-coated, spur-shaped device—as a primary treatment for in-stent restenosis, where a previously placed coronary artery narrows again. The trial enrolls up to 9 adults with this condition to see if the device is safe in the short ter…

This trial investigates whether gentle electrical stimulation of the ear (specifically the vagus nerve area) during emergency heart attack treatment can reduce heart muscle damage and improve recovery. Researchers are enrolling 110 adults having their first major heart attack who…

This study tests whether an interactive avatar-based game on a tablet can help people who have had a heart attack learn how to manage their health after leaving the hospital. Participants are randomly assigned to either standard face-to-face discharge education or the tablet game…

This study tests whether adding an Oxiris membrane—a special blood filter that removes toxins and inflammatory molecules—to the ECMO circuit can reduce the harmful inflammation and organ damage that often occurs when blood flow is restored after cardiogenic shock. The trial enrol…

This phase 2 trial tests whether the drug abatacept can safely and effectively treat severe heart inflammation (myocarditis) caused by immune checkpoint inhibitors, a type of cancer immunotherapy. The study enrolls adults with any cancer who develop this rare but often fatal hear…

This study looks at whether heart failure patients with iron deficiency anemia respond better to oral iron supplements when they are also taking a type of heart medication called SGLT2 inhibitors. Participants take oral iron for three to four months, then pause treatment while do…

This study tests a new, less invasive procedure called PIMSRA for children with obstructive hypertrophic cardiomyopathy, a condition where the heart muscle is too thick and blocks blood flow. The procedure uses a needle guided by ultrasound to deliver radiofrequency energy to the…

This trial tests whether a prehabilitation program — including exercise, education, and breathing techniques — helps people recover faster after planned heart surgery. The study enrolls adults scheduled for surgery for coronary artery disease, valve problems, or other heart condi…

This trial studies how long to cool the body after a cardiac arrest to protect the brain. It includes adults who are in a coma after being resuscitated from an out-of-hospital cardiac arrest. Participants are cooled to a target temperature and then rewarmed slowly, with different…

This study investigates whether replacing missing teeth with fixed dental prosthetics can improve blood sugar and cholesterol levels in people with ischemic heart disease. Participants aged 45 to 70 with stable heart disease and missing teeth receive the dental treatment. Researc…

This study investigates whether combining two drugs that block brain-damaging overactivity—ketamine and perampanel—can stop super-refractory status epilepticus in people who remain in a coma after cardiac arrest. Researchers will compare outcomes in 84 patients who received this …

This phase 3 trial investigates whether the drug tolvaptan can safely and effectively correct low sodium levels in patients with hyponatremia, a condition where the body's sodium-water balance is off. The study enrolls adults with mild to moderate hyponatremia who are either euvo…

This trial tests two techniques for treating severely calcified coronary arteries before placing a stent. One uses a super high-pressure balloon to crack the calcium; the other uses intravascular lithotripsy, which sends shockwaves through the artery wall. The study includes 80 a…

Autistic children drown at 160 times the rate of their peers, yet standard swim lessons often fail them. This study tests a new approach that adapts instruction based on a child's sensory profile—whether they seek, avoid, or have mixed reactions to sensory input. Researchers will…

This study investigates whether dapagliflozin, a drug typically used for diabetes, can improve the structure and function of the heart's left atrium in people with paroxysmal atrial fibrillation (a type of irregular heartbeat that comes and goes). Researchers will measure changes…

This study looks at whether vericiguat, a drug that stimulates a key enzyme, can improve exercise ability and heart pressure during activity in people with chronic heart failure and reduced ejection fraction. Participants take vericiguat alongside their usual heart medications an…

This trial investigates whether a structured exercise program can improve fitness and lower risk factors for heart disease, stroke, and type 2 diabetes in Latina women who have had breast cancer. Participants are randomly assigned to either an 8-month progressive exercise program…

This trial tests a special implantable cardioverter-defibrillator (ICD) that uses a single lead to sense both heart chambers, aiming to detect atrial fibrillation and other arrhythmias early. It includes 56 people who need a single-chamber ICD and are in normal sinus rhythm at th…

This study tests two strategies in low-income seniors with chronic conditions like heart disease, diabetes, or kidney disease. One group gets free preventive medications (no copayment), and another receives personalized education on medication use and lifestyle. The goal is to se…

This trial tests whether a special cooling probe placed in the esophagus can protect it from heat damage during a common heart procedure for atrial fibrillation (AF). AF is a heart rhythm disorder that can cause serious symptoms, and ablation uses heat to fix it, but the esophagu…

This trial investigates whether a one-year, app-supported home exercise program can improve quality of life and reduce the time spent in atrial fibrillation (AF) compared to usual care. Participants have paroxysmal or persistent AF, are in sinus rhythm at the start, and use a sma…

This study investigates whether a home-based cardiac rehabilitation program, tailored to each patient's readiness to change, can improve self-care, quality of life, and confidence in people with heart failure. The program involves home visits and phone counseling over 12 weeks. R…

This study looked at over 17,000 people who had a heart attack to compare two blood thinners: prasugrel and ticagrelor. Hospitals switched from ticagrelor to prasugrel in a stepwise way to see which drug better prevents death, another heart attack, or stroke. The goal is to find …

This study tested whether using a heart MRI to find scar tissue can help decide which people with mild-to-moderate heart failure should get a defibrillator (ICD) to prevent sudden cardiac death. About 449 adults with a weakened heart pump (ejection fraction 36-50%) and scar tissu…

This study tests whether direct oral anticoagulants (DOACs) like apixaban or rivaroxaban reduce the risk of stroke, major bleeding, or heart-related death in people with atrial fibrillation who have an intermediate stroke risk (CHA2DS2-VASc score of 1 in men or 2 in women). About…

This study investigates whether eccentric cycling—where the pedals resist the rider's effort, similar to walking downhill—can improve exercise capacity in people with heart or lung conditions. Unlike normal cycling, eccentric cycling demands less oxygen, which may allow patients …

This study tests whether a case manager—who provides phone support, a home visit, and lifestyle counseling—can help women attend cardiac rehabilitation after a heart attack or heart surgery. Cardiac rehab is proven to reduce mortality and improve quality of life, but women are le…

This trial compares two ways to insert a catheter into the heart during a heart attack: through the wrist (conventional) or through the hand (distal). The goal is to see which method is faster and causes fewer complications, such as blocking the wrist artery. About 550 heart atta…

This trial tests whether a newer, simpler 2-lead cardiac resynchronization therapy defibrillator (CRT-DX) works as well as the standard 3-lead system (CRT-D) in people with heart failure. The study includes 640 adults who need a CRT-D and have a normal heart rhythm. The main goal…

This study tests a nurse-led program designed to help elderly patients (age 60+) adopt healthier behaviors after undergoing a heart stent procedure (PCI). The program provides information, motivation, and practical skills through in-person sessions, phone calls, and hands-on trai…

This study tests whether a web-based coaching program called CardioFit can help people with coronary artery disease become more physically active. Participants use a secure website to create personalized exercise plans with guidance from an online coach. The trial compares Cardio…

This study tested whether starting ECMO (a heart-lung bypass machine) right at the location of a cardiac arrest, rather than waiting until the patient reaches the hospital, could improve survival with good brain function. Researchers enrolled 65 adults with refractory cardiac arr…

This trial investigates whether cardiac resynchronization therapy (CRT) — a special type of pacing — can improve how far people can walk in six minutes. It includes adults with congenital heart disease where the right ventricle pumps blood to the body (systemic right ventricle). …

This study tests whether an automated phone system that calls smokers with coronary heart disease after hospital discharge can help them quit. Participants receive calls at several time points over six months, checking on their smoking and offering support. The goal is to see if …

This phase 2 trial investigates whether metformin, a standard diabetes medication, can improve lung blood pressure and exercise ability in people with heart failure with preserved ejection fraction (HFpEF) and pulmonary hypertension. Participants take metformin or a placebo for 1…

This study looked at 100 people with hypertrophic cardiomyopathy, a condition where the heart muscle thickens and blocks blood flow. Researchers compared different surgical techniques—removing part of the thickened heart muscle alone or combined with repairing the mitral valve—to…

This study looked at whether follow-up visits by phone or video are as safe as in-person visits for people who had a heart attack and received a stent. 88 patients were split into two groups: one had telemedicine check-ups at 1, 3, and 6 months, and the other had standard office …

This trial tests whether a personalized physical activity plan can help children aged 5–18 with congenital heart disease increase their exercise capacity and daily activity levels. The plan is designed with input from parents, teachers, and a pediatric cardiologist to address saf…

This study tested whether a drug-coated balloon can stabilize fatty plaques in heart arteries that are at risk of rupturing and causing a heart attack. Researchers treated 45 patients with a recent heart condition, using a special balloon to deliver medication directly to the pla…

This study tested a bedside device called the Reprieve Decongestion Management System in 100 hospitalized patients with acute decompensated heart failure. The device automatically adjusts the dose of a diuretic (furosemide) and saline based on the patient's real-time urine output…

This study tested whether the drug sotagliflozin can improve heart function in people with a type of heart failure called HFpEF who do not have diabetes. Eighty-eight participants took either the drug or a placebo for six months. Researchers used heart scans and exercise tests to…

This completed trial tested whether giving epinephrine and verapamil directly into the heart arteries could help restore blood flow in heart attack patients whose vessels remain blocked despite standard treatment. 104 adults with ST-elevation heart attacks were enrolled. The stud…

This study looked at 9 people with atrial fibrillation (AFib) that came back after an initial cryoballoon ablation. It compared two repeat ablation methods: another cryoballoon procedure versus radiofrequency ablation guided by a high-fidelity mapping system (Rhythmia). Participa…

This trial tests whether a new 3D-imaging method called vFFR works as well as the standard pressure-wire technique (FFR) to guide treatment for narrowed heart arteries. About 2,200 adults with stable chest pain or a recent non-emergency heart attack will be randomly assigned to o…

This study tested whether sending personalized text messages about lifestyle changes could improve heart health in 700 people who had a stent placed for coronary artery disease. Half received 4 texts per week for 24 weeks, while the other half got standard care. Researchers measu…

This study tested whether atorvastatin, a cholesterol-lowering drug, can protect the heart in breast cancer patients receiving doxorubicin-based chemotherapy. 44 women with newly diagnosed breast cancer took atorvastatin daily for 3 months alongside their chemo. Researchers measu…

This study tests whether motivational interviewing—a supportive, goal-oriented counseling approach—can help people who have had a heart stent adopt and maintain healthier habits. Participants receive one-on-one coaching sessions and reminder texts over three months, while researc…

This study tests a structured transitional care program for people with heart failure. The program includes discharge education, phone follow-ups, and home care support for three months after leaving the hospital. Researchers want to see if it helps reduce depression, improve con…

This study tested a new drug called R2R01 in 33 people with worsening heart failure. Participants received either R2R01 or a placebo alongside their usual treatments. The goal was to see if the drug is safe and helps reduce fluid buildup in the heart.

This study tests a new medicine called NNC0537-1482, designed to potentially treat heart failure. It is the first time this drug is given to humans, so healthy volunteers receive a single injection under the skin to check for safety and how the body processes it. Participants are…

This study tests a newly designed device to hold arterial pressure monitoring lines in place after coronary artery bypass surgery. The goal is to see if it keeps readings more accurate and stable than standard tape, especially when patients move. Sixty adults undergoing bypass su…

This study tested whether a team of specialists—an endocrinologist, diabetes educator, and dietician—could help people with type 2 diabetes and heart disease control their blood sugar better than standard care. 169 patients were split into two groups: one received usual care from…

This trial tests whether CardiolRx, a pharmaceutical cannabidiol, can improve heart recovery in adults with acute myocarditis (heart muscle inflammation). Participants receive either CardiolRx or a placebo for 12 weeks. The study uses heart MRI scans to measure changes in heart t…

This study tested two different catheters (lattice-tip vs standard irrigated-tip) for a heart procedure called ablation, which treats a fast heartbeat (atrial flutter). 102 adults received the procedure to see which catheter works better and faster with fewer side effects. The go…

This study tested whether starting the drug dapagliflozin during a hospital stay for acute heart failure can reduce the risk of death or worsening heart failure. Over 2,400 adults who were stable after initial treatment were randomly given either dapagliflozin or a placebo. The g…

This study tested a new way to give the heart failure drug furosemide: as a shot under the skin instead of through an IV. Twenty adults with chronic heart failure received both versions to compare how much drug gets into the body. The goal is to see if the shot works well enough …

This study looked at whether using a blood test (NTproBNP) to guide heart-protecting medications can safely prevent heart damage in people with breast cancer or lymphoma receiving anthracycline chemotherapy. About 108 adults participated, and researchers measured how many joined,…

This study tests whether a therapeutic education program helps teenagers and young adults with congenital heart disease transition from pediatric to adult medical care. Participants aged 13 to 25 will either receive the education program or standard follow-up. Researchers will me…

This study tested whether adding vasopressin to the standard drug epinephrine helps more people survive a cardiac arrest that happens outside the hospital. Over 2,400 adults were enrolled. The main goal was to see how many patients were alive when they reached the hospital.

This study tested a new drug called aficamten against the standard medicine metoprolol in 175 adults with a heart condition that makes the heart muscle thick and blocks blood flow. The goal was to see which drug better improves exercise ability and symptoms like shortness of brea…

This study tested whether blood thinners (DOACs) work better than aspirin to prevent valve damage and serious heart problems after a less invasive aortic valve replacement (TAVI). 360 patients aged 65-80 were randomly assigned to take either a DOAC or aspirin daily. The main goal…

This study tested whether breathing air with low and then high oxygen before heart bypass surgery could help protect the heart from damage. 120 adults scheduled for bypass surgery took part. The approach is drug-free and aims to reduce complications after surgery.

This study tested a surgical technique called femoral tripod eversion for people with blocked leg arteries. 37 patients were followed for two years to check safety and effectiveness. The procedure aims to clear blockages without using synthetic materials. Early results suggest it…

This study tested a device designed to catch and remove debris that can break loose during transcatheter aortic valve replacement (TAVR), a procedure to replace a narrowed heart valve. The device uses two filters placed in arteries leading to the brain. The trial involved 260 peo…

This study followed 500 people who received the Amplatzer PFO Occluder, a device that closes a small hole in the heart called PFO. Researchers tracked serious complications within 30 days and longer-term issues like stroke or blood clots over 3 years. The goal was to confirm the …

This study tested whether a half-dose blood thinner (ticagrelor) taken alone after heart stent placement works as well as the standard two-drug therapy in East-Asian patients with chronic coronary syndrome. Sixty participants were randomly assigned to one of three treatment group…

This study looked at whether a therapeutic education program, added to standard medical care, helps people who have had a heart attack or stroke better control their risk factors over one year. About 202 adults aged 18-75 took part. The goal was to see if the program improves phy…

This study tested giving chemotherapy before surgery to children with Wilms tumor, a rare kidney cancer. The goal was to shrink tumors so surgeons could remove less kidney tissue, helping preserve kidney function. 249 children took part, and the approach aimed to reduce the need …

This study tested the safety of a drug called maralixibat in 27 infants under 12 months old with Alagille syndrome or progressive familial intrahepatic cholestasis (PFIC), two rare liver diseases that cause bile buildup. The drug is given as an oral solution and aims to reduce bi…

This study tested whether giving a more powerful antiplatelet drug (prasugrel or ticagrelor) for one month after a heart attack, along with a standard blood thinner, could reduce heart attacks, strokes, and deaths in people with atrial fibrillation. The 602 participants were then…

This study looked at whether bosentan (Tracleer) can reduce the thickness of lung artery walls in people with a type of high blood pressure in the lungs (pulmonary arterial hypertension, or PAH). Eleven adults with PAH took bosentan for 6 months. Researchers measured artery wall …

This study looked at whether adding semaglutide (a drug used for diabetes and weight loss) to the standard heart failure medication dapagliflozin helps people with heart failure who have had a surgical heart valve replacement. 160 participants were split into two groups: one got …

This study tested a new device called Firesorb, a temporary scaffold that slowly releases medicine to keep heart arteries open and then dissolves over time. Researchers compared it to a standard permanent stent in 430 people with coronary artery disease. The goal was to see if th…

This study looked at ways to help children aged 5-20 with rheumatic heart disease take their regular antibiotics. Researchers compared having a case manager alone versus a case manager plus a peer support group. The goal was to see if the simpler approach works just as well to ke…

This pilot study tested whether varenicline (Chantix) helps smokers with coronary heart disease quit better than the standard nicotine patch. Fifty motivated smokers who had a heart-related event were randomly assigned to one of the two treatments for 12 weeks. The main goal was …

This study tested a new type of pacemaker that doesn't use wires (leads) to help both the upper and lower chambers of the heart beat in sync. It involved 464 people with slow heart rhythms who needed a pacemaker. The main goals were to see if the device was safe and worked well a…

This study tested a program to help veterans with heart disease or rheumatic conditions take their medications as prescribed. Over 5,000 participants received reminders via text or phone calls, with extra support if needed. The goal was to improve medication adherence and reduce …

This study tested whether using a smartphone app and phone calls to monitor patients after a heart failure hospital stay helps doctors safely increase their medications. 66 adults with chronic heart failure and low ejection fraction were split into two groups: one received usual …

This study followed 650 low-risk patients with severe aortic valve narrowing who received a less invasive valve replacement called TAVI. Researchers tracked deaths, strokes, and return hospital visits for heart problems. The goal was to see how well TAVI works in everyday practic…

This study tested a new way to give extra oxygen to the heart after a heart attack. Twenty patients received a special oxygen treatment for one hour through a thin tube placed in the heart artery. The main goal was to see if the procedure was safe and could be done without proble…

This study tested whether using a CT scan before heart ablation can make the procedure faster and safer for people with ventricular tachycardia, a fast heart rhythm that can be life-threatening. 119 adults who had a prior heart attack and an implanted defibrillator were randomly …

This study looked at 108 people whose heart stents had narrowed again after being placed. Doctors tested three different devices: two types of drug-coated balloons and one new stent. The goal was to see which one works best to keep the artery open and prevent future heart problem…

This study looked at whether using half the usual dose of heparin during heart surgery (bypass or valve replacement) could reduce bleeding afterward. Heparin is a blood thinner used to prevent clots during surgery, but it can increase bleeding. The study involved 238 adults and c…

This study tested whether giving low doses of two steroids (hydrocortisone and fludrocortisone) helps adults with cardiogenic shock, a life-threatening condition where the heart can't pump enough blood. 380 participants received either the steroids or a placebo. The main goal was…

This study tested a new type of pacemaker that doesn't need wires (leads) to connect to the heart. It was implanted directly into the heart in over 1,200 people with slow heart rhythms. The goal was to see if it is safe and works well. The study found that most patients had no se…

This study tested whether a newer blood thinner, rivaroxaban (Xarelto), is as safe and effective as the older drug warfarin for preventing strokes in people who develop atrial fibrillation after heart surgery. About 100 adults who had open-heart surgery and then experienced a new…

This study tested whether a smartphone app that reminds patients to take their medication can improve how consistently people with atrial fibrillation take their blood thinner (rivaroxaban). Over 600 adults with AF and other health issues like high blood pressure or diabetes used…

This study tested whether a slow-release form of the beta-blocker carvedilol can improve heart function in people with heart failure with preserved ejection fraction (HFpEF), a condition where the heart pumps normally but is too stiff. 63 adults with high blood pressure and signs…

This study tested whether eating yam gruel daily for 12 weeks could improve cholesterol levels in 72 people who had a heart stent placed. Participants either received standard care alone or standard care plus yam gruel as a partial dinner replacement. Researchers measured cholest…

This study looked at how safe and effective Vyndaqel is for people with a rare heart condition called transthyretin amyloid cardiomyopathy. Over 1,200 patients in Japan were followed while taking the drug in regular medical practice. The main goal was to track side effects and su…

This completed Phase 2 trial tested whether a single daily polypill (containing a statin, aspirin, and a blood thinner) could improve medication adherence in 140 patients who had a heart attack and received a stent. The study compared the polypill to usual care with separate pill…

This study tested two different methods of pacing the left side of the heart in people with severe heart failure. The goal was to see if pacing from inside the heart (endocardial) works better than the usual method from outside (epicardial). Only 6 adults took part, and the main …

This study tested whether using a smartphone app to alert nearby volunteers (called 'heart runners') to bring an automated external defibrillator (AED) to a suspected cardiac arrest can improve survival. Over 2,000 emergency calls were randomly assigned to either activate these v…

This study tested a new way to help heart failure patients with weak hearts get the right medications. Over 2,400 people with a heart device took part. A nurse used a simple checklist to guide doctors in prescribing better treatments, aiming to reduce hospital visits and improve …

This study compared two medications, levosimendan and adrenaline, given during heart bypass surgery to patients with weak hearts (ejection fraction 30-40%). Sixty adults aged 18-65 having elective surgery were included. The goal was to see which drug better supports heart functio…

This study tested whether catheter ablation (a procedure to fix irregular heart rhythm) is better than standard rate-control medication for people with both atrial fibrillation and heart failure. Over 400 participants were randomly assigned to either ablation or medication. The m…

This completed study looked at whether two different blood thinners—dabigatran (Pradaxa) and warfarin (Coumadin)—could help prevent memory loss and dementia in people over 65 with atrial fibrillation (an irregular heartbeat). A total of 101 participants were randomly assigned to …

This study tested whether the diabetes drug ertugliflozin can reduce fluid buildup in the skin and tissues of people with heart failure. 28 adults with reduced heart function took the drug or a placebo for one month each. Researchers measured skin water and sodium content to see …

This phase 2 trial tested a drug called orticumab in 77 adults with moderate-to-severe psoriasis who also had cardiometabolic risks (like obesity and high cholesterol). The goal was to see if orticumab could safely reduce skin plaques and inflammation linked to heart disease. Par…

This study looked at whether short-term diet changes can improve heart health in people who have had a first heart attack. 24 adults were assigned to either a standard heart-healthy diet, a plant-based (vegan) diet, or no special diet for 3 months. Researchers measured weight, bo…

This study looked at whether dapagliflozin, a diabetes medication, can improve how the heart uses sugar and blood flow in people with type 2 diabetes and stable coronary artery disease. 25 adults took either the drug or a placebo for 4 weeks. The goal was to see if the drug helps…

This pilot study tested whether colchicine, an anti-inflammatory drug, can slow the buildup of calcium in the aortic valve. 24 adults with mild-to-moderate aortic stenosis were randomly assigned to take colchicine or a placebo for 6 months. The study measured changes in valve cal…

This study tested a combination of two drugs, rivaroxaban and ticagrelor, in 40 patients with atrial fibrillation who had a stent placed. The goal was to see if this combo causes less bleeding and prevents heart attacks or strokes better than current treatments. Patients took the…

This study tested whether it is safe and feasible to perform two heart procedures—MitraClip to repair a leaky mitral valve and Watchman to close off a part of the heart linked to stroke risk—in one session. The trial enrolled 25 adults with both severe mitral regurgitation and at…

This study looked at whether a 12-week course of glecaprevir/pibrentasivir can safely cure hepatitis C in heart transplant patients who got the virus from infected donors. Fifty adults on the transplant waitlist were enrolled, and those who received a hepatitis C-positive heart w…

This study looked at over 5,500 heart patients in Korea who had a drug-coated stent and took two blood thinners for about a year. After that, they were given either clopidogrel or aspirin alone for up to two more years. The goal was to see which drug better prevents heart attacks…

This study tests whether a software tool called AutocathFFR can accurately measure the severity of coronary artery blockages from standard 2D angiogram images, compared to the gold-standard invasive FFR measurement. The software uses machine learning to analyze images taken durin…

This study looked at whether using different blood test cutoffs for men and women can better diagnose heart attacks. Current tests use the same cutoff for both sexes, which may miss heart attacks in women and over-diagnose them in men. Researchers tested new sex-specific cutoffs …

This study investigates whether advanced heart imaging and blood tests can detect early signs of heart damage in adults who received anthracycline chemotherapy as children. Anthracyclines are effective cancer treatments but can increase the risk of cardiomyopathy years later. Cur…

This study tests whether artificial intelligence can read a standard ECG to predict how much heart muscle is damaged after a heart attack. Researchers will compare AI-ECG results with MRI images, the current gold standard, in 461 patients who had a heart attack and underwent a pr…

This study is testing whether measuring a protein called copeptin in the blood, alongside the standard troponin test, can help doctors quickly rule out a heart attack in people arriving at the emergency room with chest pain. Participants with chest pain that started within the la…

This study is testing whether an artificial intelligence system can accurately identify congenital heart disease in children by analyzing heart sounds. It will involve thousands of children, with and without heart conditions, to compare the AI's performance against traditional me…

This trial tests whether an AI software called Vital-PICASO can predict if a hospital patient will have a cardiac arrest within the next 24 hours. The software analyzes routine vital signs like blood pressure, heart rate, and breathing rate from electronic health records. Researc…

This completed Phase 3 study tested whether a radioactive tracer called [18F]Florbetaben, used in PET scans, can accurately diagnose cardiac AL amyloidosis—a condition where abnormal proteins build up in the heart. 244 adults with suspected cardiac amyloidosis received a single P…

This study tests whether a 7-day adhesive ECG patch (MEMO Patch) can detect more heart rhythm abnormalities than a conventional 24-hour Holter monitor in adults who experience palpitations or dizziness. Participants wear both devices at the same time for the first day, then conti…

This study tests whether a new device that records chest vibrations from a distance can detect heart and lung diseases. Researchers will compare the vibration patterns of people with known cardiac or pulmonary conditions to those of healthy volunteers. If the technique works, it …

This trial evaluates a new high-sensitivity blood test (Mindray hs-cTnI) for diagnosing heart attacks in people arriving at the emergency room with symptoms like chest pain. Researchers will compare the test's accuracy against an existing approved test, using blood samples taken …

This trial tests whether a wearable patch called MEMO Patch V2 can detect heart rhythm disorders (arrhythmias) more effectively than the standard 24-hour Holter monitor. Adults with symptoms like palpitations or dizziness, or those who have had a stroke of unknown cause, will wea…

This early study tests a new radioactive dye, F-18 rhodamine 6G, to see if it can produce clearer PET scans of the heart. The dye is injected and then images are taken to measure blood flow in the heart muscle. The trial includes both healthy volunteers and people with stable cor…

This study explores whether a cardiac MRI can safely and effectively gather the same heart pressure and flow measurements normally obtained through right heart catheterization, a more invasive procedure. Researchers will attempt to perform the catheterization inside the MRI machi…

This study investigates whether an Apple Watch can accurately detect heart rhythm problems (arrhythmias) in children aged 6 to 21 who are already scheduled for standard heart monitoring. Researchers will compare the watch's ECG and heart rate readings to those from conventional c…

This trial evaluates an artificial intelligence algorithm, AutoAS, that analyzes ultrasound images of the heart to detect aortic stenosis — a narrowing of the heart's main valve. Researchers will collect images from adults scheduled for a standard echocardiogram and test how well…

This study aims to improve how doctors diagnose acute heart failure in the emergency department. Currently, diagnosis can be slow and uncertain because symptoms like shortness of breath are vague. Researchers are testing a blood test that measures 21 different proteins to see if …

This study tested a new one-hour diagnostic algorithm using a protein called FABP to quickly confirm or rule out a type of heart attack called NSTEMI. It involved 20 male patients who arrived at the hospital within 4 hours of chest pain. The goal was to see if measuring FABP leve…

This study tested whether a special heart scan (SPECT) can predict how well patients with ischemic cardiomyopathy will recover after heart surgery. 120 patients underwent imaging at rest and during stress to measure heart function and blood flow. The goal was to find patterns tha…

This study tested whether a special PET scan using 68Ga-DOTATOC can detect inflammation in the heart muscle of people with myocarditis. 33 adults with suspected acute myocarditis and normal angiograms received the scan. The goal was to see if this method is as good as or better t…

This study tested whether a special heart scan (SPECT) can predict which people with severe chronic heart failure will improve after getting a cardiac resynchronization therapy device. The scan uses a radioactive tracer to measure nerve activity in the heart. Researchers enrolled…

This study compares a new ultra-high-resolution CT scanner (UHR-CT) to the standard invasive coronary angiography for detecting significant blockages in the heart's arteries. It focuses on patients with severe calcium buildup or stents, where regular CT scans often fall short. Th…

This trial tests whether a magnetic sensor placed on the skin can accurately measure blood pressure in the jugular vein and radial artery, compared to standard invasive methods using catheters. The study involves 10 adults with complex congenital heart disease or chronic right he…

This study tested how well a small, portable device (LumiraDx) measures blood clotting (INR) compared to standard lab tests. Researchers collected blood from 420 adults, some taking warfarin and some not, using both a fingerstick and a vein draw. The goal was to see if the device…

This study tested whether a special PET-CT scan using a radioactive tracer (18F-FDG) can improve diagnosis of infectious endocarditis on natural heart valves. Researchers scanned 31 adults with suspected endocarditis within 5 days of starting care. The goal was to see how well th…

This study looked at 15 patients with a rare heart condition called wild-type transthyretin amyloid cardiomyopathy (ATTRwt) who also had signs of aortic stenosis. Researchers used dobutamine stress echocardiography—a test that uses a drug to make the heart pump harder while imagi…

This study tested whether two wearable devices—the Apple Watch and the Skylab CART-I ring—can accurately detect atrial fibrillation and other irregular heart rhythms compared to the standard 12-lead ECG. Researchers recruited 500 adults from UK cardiology clinics. Each participan…

This study tested a non-invasive mapping system (Cardioinsight®) to help doctors treat heart rhythm disorders. It included 492 patients who needed ablation, pacemaker implantation, or risk assessment for sudden death. The goal was to see if the mapping system improves outcomes co…

This completed study looked at 313 children to see if blood tests and advanced heart scans could help detect congenital heart disease earlier and predict which children might need surgery. Researchers compared children with heart defects to healthy controls using blood biomarkers…

This study tested whether a special type of heart MRI, called T1 mapping, can accurately diagnose cardiac amyloidosis—a condition where abnormal proteins build up in the heart muscle. Researchers studied 112 older adults with heart failure and thickened heart walls. They compared…

This study tests if a nerve block called a stellate ganglion block can lower the chance of developing atrial fibrillation (a fast, irregular heartbeat) after heart surgery. About 220 adults having valve or bypass surgery will receive either the nerve block or a placebo. The goal …

This study tests a specially designed set of infection-prevention steps (a 'bundle') for people undergoing coronary artery bypass graft (CABG) surgery. The goal is to see if this bundle reduces surgical wound infections, both superficial and deep. The trial includes 200 participa…

This trial tests whether a 12-week program led by a heart health educator can lower cholesterol and improve heart health in spouses, siblings, and children of people hospitalized with coronary heart disease. Participants work with an educator to create a personal plan for smoking…

This study tested whether making a small opening in the lining around the heart (called a left posterior pericardiotomy) can prevent new atrial fibrillation after coronary artery bypass surgery. 270 adults having bypass surgery were randomly assigned to get this extra cut or not.…

This study tested whether colchicine, an anti-inflammatory drug used for gout, can prevent new-onset atrial fibrillation and the need for a permanent pacemaker in people undergoing transcatheter aortic valve replacement (TAVI). About 120 older adults with severe aortic stenosis w…

This large observational study followed over 135,000 Chinese women aged 40-70 to see if eating soy food reduces the risk of heart attacks and fatal heart disease. Researchers tracked participants' soy intake and heart health over time. The study aims to provide clues about diet a…

This study tests whether Emotional Freedom Techniques (EFT) — a therapy that combines tapping on specific body points with focused thoughts — can help people recovering from coronary artery bypass surgery. Researchers will compare 33 patients who receive EFT plus standard care ag…

This study looks at whether aggressive weight loss using semaglutide can improve symptoms in people with a specific type of heart failure linked to obesity. About 81 participants with a BMI of 30 or higher and heart failure with preserved ejection fraction will receive either sem…

This trial tests a nurse-assisted eHealth program for patients with heart failure or colorectal cancer. After leaving the hospital, participants use a tablet with the MyDignio app to track vital signs and symptoms, and communicate with a nurse navigator. The goal is to see if thi…

This trial tests whether a 12-week Nordic walking program—walking with poles—improves exercise capacity and quality of life in people with heart failure better than standard cardiac rehabilitation. Participants attend twice-weekly sessions, and researchers measure walking distanc…

This study looks at whether tai chi exercises and wearable fitness trackers can help people who have survived a heart attack (acute coronary syndrome) become more physically active. About 70 adults who are currently inactive will take part. The goal is to see if this approach is …

This trial tests an experimental injection called JMKX003142 in people with heart failure who have fluid buildup (edema), causing swelling and congestion. Participants receive either the drug or a placebo once daily for five days. The goal is to see if the drug safely reduces exc…

This study tests whether an 8-week machine-based resistance training program can improve muscle strength and physical function in older adults (60+) who have both chronic heart failure and sarcopenia (age-related muscle loss). Researchers will measure handgrip strength and sit-to…

This trial tests whether a 12-week ketogenic diet program, delivered entirely online, is practical and acceptable for adults with Long COVID who also have ME/CFS and dysautonomia. Participants follow a low-carb, high-fat diet with vitamin B1 and electrolyte support, plus weekly v…

This study tested two types of nerve blocks (SAP and PECS II) to see if they could reduce pain after coronary artery bypass grafting. 243 adults received one of the blocks or standard care. Researchers measured pain scores, opioid use, and recovery times. The goal was to find a b…

This trial tests whether a structured nurse-led program can improve sleep quality in adults with chronic heart failure. Participants will receive education on healthy sleep habits and cognitive-behavioral techniques, alongside their usual care. The study measures changes in sleep…

This study tests whether giving a nerve block (stellate ganglion block) before coronary artery bypass grafting (CABG) can reduce the chance of developing atrial fibrillation, a common irregular heartbeat after surgery. About 60 adults having CABG will be randomly assigned to rece…

This trial tests whether a structured self-management program, based on the Common-Sense Model of Self-Regulation, can help people recover after a procedure to treat atrial fibrillation (an irregular heartbeat). Participants will be randomly assigned to receive either routine nur…

This trial compares two simple educational tools—an animated video and a brochure—against routine care to see which best lowers anxiety and fear in children aged 7 to 10 who need an echocardiogram. All participants have a congenital heart condition and are scheduled for a follow-…

This pilot trial tests a technique called cryoanalgesia, which uses extreme cold to temporarily freeze nerves in the chest during heart surgery. The goal is to block pain signals, potentially reducing the need for opioid painkillers and improving recovery. The study enrolls adult…

This study tests whether a 12-week home-based breathing exercise program (inspiratory muscle training) can improve physical function, fatigue, and quality of life in adults aged 70 and older with advanced heart failure who are receiving palliative care. Participants use a handhel…

This trial investigates whether wearing AI-powered active noise-cancelling headphones during rotational atherectomy — a heart procedure that generates loud drilling noise — can reduce patient anxiety and improve heart rate stability. One hundred adults with severe coronary artery…

This trial investigates whether using a bedside ultrasound machine can help doctors and nurses place feeding tubes more accurately in children aged 0 to 6 years who have congenital heart disease. The study will compare the accuracy of tube placement when ultrasound is used versus…

This study tests whether watching an augmented reality (AR) educational video on a tablet can lower anxiety in people about to undergo cardiac catheterization, a common heart procedure. Participants in the experimental group view the AR video in addition to receiving standard pap…

This study tests whether virtual reality training can help children aged 6 to 16 with the childhood form of myotonic dystrophy type 1 (DM1) improve their ability to understand others' thoughts and emotions. Participants engage in social scenarios in a virtual environment, guided …

This study tested whether regular phone calls from a nurse after coronary artery bypass surgery could help patients manage symptoms and take better care of themselves at home. 72 patients were split into two groups: one received standard care, and the other got scheduled phone co…

This study tested a modified pacemaker in 34 people with heart failure (NYHA class II or III). The device delivers special pacing signals to reduce overactive sympathetic nerve activity, which can strain the heart. Researchers measured changes in arterial elastance, a sign of rel…

This study tests whether wearing virtual reality glasses during femoral sheath removal — a routine step after a heart catheterization — can lower pain, anxiety, and changes in vital signs. About 60 adults undergoing this procedure will be randomly assigned to either use VR glasse…

This pilot study tested whether adding a 16-week meditation program to standard cardiac rehabilitation helps people with coronary artery disease feel less stressed and anxious. Forty participants were split into two groups: one did meditation plus rehab, the other did rehab alone…

This study tested a computer algorithm called CartoFinder to help doctors better identify and treat complex heart rhythm problems (arrhythmias). 70 adults with persistent atrial fibrillation (a type of irregular heartbeat) took part. The goal was to see if the algorithm could imp…

This study tested whether using a device that electrically stimulates the thigh muscles at home, for 4 weeks after a hospital stay, could help people with heart failure walk farther and feel stronger. Only 8 people took part, so the results are very early. The goal is to find a s…

This study tested whether an 8-week cardiac rehabilitation program using a stationary bike could improve cardiorespiratory fitness in 20 adults with atrial fibrillation. Participants exercised for 6 minutes, three times a week. The goal was to see if exercise capacity could incre…

This study tested whether giving the pain medicine sufentanil as a continuous drip during heart surgery helps patients wake up and leave the ICU sooner compared to giving it as single shots. 65 adults having planned heart surgery took part. The goal was to see if the drip method …

This study tested whether adding leg compression to standard diuretic treatment helps people hospitalized with heart failure and severe fluid buildup. 106 adults received either diuretics alone or diuretics plus leg compression for up to 72 hours. Researchers measured changes in …

This study tested whether acupressure, a technique that applies pressure to specific points on the body, can reduce anxiety and improve vital signs like blood pressure and heart rate in people hospitalized with acute coronary syndrome (ACS). Sixty-eight adults with a first-time A…

This study tested whether using virtual reality glasses during physical therapy can reduce pain, improve blood oxygen levels, and help children walk farther after open heart surgery. Forty children aged 6 to 12 took part. One group used VR glasses during their cardiac rehab exerc…

This phase 2 trial tested a drug called BX1514M in 38 people with hypertrophic cardiomyopathy, a genetic heart condition that can cause shortness of breath, chest pain, and dizziness. The drug aims to improve blood flow by tightening veins, which may reduce blockages in the heart…

This study looked at whether Emotional Freedom Technique (EFT), a therapy that involves tapping on specific body points, can reduce pain, pain-related beliefs, and anxiety in people recovering from coronary artery bypass graft (CABG) surgery. Researchers enrolled 66 adults and me…

This study tested whether a 12-week home-based walking program could help heart failure patients with depression, frailty, and quality of life. 68 patients were split into two groups: one got standard health education, the other added a walking routine of 3,000 extra steps per se…

This study tested problem-solving therapy (PST) for adults with type 2 diabetes or heart disease who also have poor mental well-being. PST is a structured talk therapy where patients list their problems, weigh solutions, and take action. The trial involved 147 patients in general…

This study tested whether watching a short video before coronary bypass surgery could reduce confusion (delirium) in the ICU and speed up recovery. 220 adults were randomly assigned to either watch the video or receive standard care. The video explained the surgery, ICU environme…

This study tested whether giving vascular surgery patients access to a website with educational videos could reduce their anxiety before the operation. 250 patients were split into two groups: one got the videos, the other did not. Researchers measured anxiety using a simple 0-to…

This study tests whether a community-led program can help rural adults eat better and exercise more to improve heart health. About 2,420 adults from small towns will work together to identify and overcome local barriers to healthy living. The program aims to spark changes in the …

This completed study looked at how inflammation might connect heart disease and diabetes. Researchers used PET scans and blood tests to measure inflammation in 150 adults, including healthy volunteers. The goal was to better understand these links, not to test a new treatment.

This study looks at whether acute stress can cause sudden worsening of congestive heart failure. Researchers will monitor 112 heart failure patients who have an implanted device that measures pressure in the lung artery. They will compare pressure readings during stressful and ca…

This study looked for genetic causes of congenital heart disease (heart problems present at birth) in families from Uganda and Nigeria. Over 1,200 people took part, including affected children and their parents. Researchers used advanced DNA testing to find gene changes linked to…

This study is investigating how often dangerous heart rhythm problems occur in people receiving hemodialysis for end-stage kidney disease. Researchers will implant a small device under the skin to continuously monitor heart rhythm for 18 months in 70 patients, half of whom have d…

This study looked at whether teaching mothers about their family health history can help them encourage healthier eating and exercise in their families. About 310 adults with at least one child took part. Researchers gave them a Family Health Package with personalized risk info a…

This study tested a computer alert that pops up in doctors' electronic health records to remind them to prescribe recommended heart failure medications. Over 1,100 patients with a specific type of heart failure (reduced ejection fraction) took part across four health systems. The…

This completed study looked at how much radiation people receive during heart CT scans (CCTA) in everyday hospital practice. Researchers enrolled 66 adults who needed a heart CT and recorded the radiation dose used, along with any dose-saving techniques. The goal was to understan…

This study looked at nearly 1,400 people with rare conditions like PPNAD, Carney Complex, and Peutz-Jeghers syndrome. The goal was to find the genetic causes and link them to specific symptoms. Researchers used clinical exams and genetic testing to better understand how these dis…

This study looked at how blood vessel stiffness affects organs like the heart, brain, kidneys, and gut in people with Williams Syndrome (WS) or supravalvular aortic stenosis (SVAS). Researchers compared 159 participants (ages 3–85) with these conditions to healthy volunteers over…

This study looks at whether children born with heart defects who need surgery might also have delays in speech and thinking. Researchers will check the children's cognitive and language skills before their operation and again one and two years after. The goal is to see if speech …

This study aims to establish national reference levels for radiation exposure during X-ray guided procedures to correct heart rhythm disorders, such as pacemaker insertions and ablations. Researchers will collect radiation dose data from over 4,000 adult patients undergoing these…

This study looks at how weight loss surgery (gastric sleeve) affects exercise ability in people with or at risk for heart failure with preserved ejection fraction (HFpEF). Researchers will measure oxygen use during exercise before and 12 months after surgery. The goal is to under…

This study looks at whether fear of movement (kinesiophobia) affects how well heart failure patients with a Left Ventricular Assist Device (LVAD) can move and function. Researchers will measure fear levels and physical capacity before and one month after patients leave the hospit…

This study looks at whether it is safe and possible to do a special exercise test (MRI combined with a bike workout) in 20 people who already have a specific type of pacemaker. The goal is to see how different pacemaker settings affect the heart's pumping ability during light exe…

This study looks at how scar tissue (fibrosis) forms in the heart in conditions like aortic stenosis, heart damage from chemotherapy, and carcinoid syndrome. Researchers will use special PET scans to see active scarring early. About 180 adults will take part to help improve detec…

This study tests whether using the wrist (radial artery) instead of the groin (femoral artery) as a second access point during a minimally invasive heart valve replacement (TAVI) reduces bleeding and other complications. About 542 patients will be randomly assigned to one of the …

This study follows 500 heart bypass patients for 10 years to see if taking two blood thinners (ticagrelor plus aspirin) for one year after surgery reduces the risk of heart attacks, strokes, or death compared to taking just one. Participants will be contacted by phone to report t…

This study looks at whether a new digital stethoscope can help parents of infants with fast heart rates (tachyarrhythmia) record clear heart readings at home. About 100 babies under 1 year old will take part. The goal is to see if parents can capture good-quality ECGs, which migh…

This study collected DNA, tissue, and medical history from 305 people with Williams syndrome or supravalvar aortic stenosis (SVAS), as well as their family members and healthy volunteers. The goal was to create a resource for future research to understand why symptoms vary so muc…

This study looks at people with neurofibromatosis type 1 (NF1) and their families to find out why some have more severe symptoms than others. Researchers will collect medical history, blood samples, and images to study genes and physical traits. The goal is to identify genes that…

This study looks at how leg muscle size and strength affect circulation in people born with a single-chamber heart, a condition where the heart can't pump blood to the lungs on its own. Researchers will measure muscle mass, oxygen use, and quality of life in 40 adults aged 16-50 …

This study compares two drug combinations (ketamine-lidocaine vs ketamine-fentanyl) used to put patients to sleep before heart bypass surgery. The goal is to see which combination better maintains blood flow to the brain during the procedure. The study includes 40 adults with cor…

This study reviews records from 240 people who experienced cardiac arrest outside a hospital and were treated by an emergency medical service in Switzerland. The goal is to identify which factors, such as initial heart rhythm, response time, and whether CPR was started by a bysta…

This study checks how well a small, wearable heart monitor (Zio monitor) works when worn for up to 30 days. About 150 adults will wear the device to see how long it stays on, how much usable heart data it records, and if it causes any skin irritation. The goal is to make sure the…

This study compares three ways of delivering genetic counseling to adults with inherited heart conditions. Some participants get counseling before testing, others get it after, with or without a required phone call. The goal is to see which approach is most efficient and empoweri…

This study looks at how the Impella CP, a small mechanical heart pump, changes blood flow and heart function in people with cardiogenic shock—a life-threatening condition where the heart can't pump enough blood. Researchers will measure pressures inside the heart and use ultrasou…

This study looks at how people with coronary artery disease (CAD) respond to arm versus leg exercise. Researchers will measure blood vessel stiffness, muscle oxygen levels, and energy use during both types of exercise. The goal is to better understand exercise limitations in CAD …

This completed Phase 1 study looked at 27 people with and without pulmonary hypertension to learn more about how blood vessel problems contribute to the disease. Researchers used heart catheterization, imaging, and blood tests to find biomarkers and understand disease mechanisms.…

This study looked at whether new computer methods can create higher-resolution images from a standard CT scan. Researchers compared the quality of regular CT images with enhanced versions from the same scan. 148 adults scheduled for a CT scan participated. The goal was to see if …

This study investigates whether fibromuscular dysplasia (FMD), a condition that causes abnormal growth in artery walls, is more common in people who have had a spontaneous coronary artery dissection (SCAD) — a tear in a heart artery that can cause a heart attack, often in young w…

This study looks at whether the 'circle method' — a way to measure the aortic valve — can help doctors choose the right size replacement valve for people with bicuspid aortic valves who are getting a TAVI procedure. Researchers will review past cases to see if patients whose valv…

This trial investigates whether genetic variations in the CES1 gene influence how the body responds to the blood thinners clopidogrel and aspirin. Healthy Amish adults will take clopidogrel for a week, then a single dose of aspirin, with blood tests measuring platelet function be…

This study tests a small, wearable ECG patch that uses artificial intelligence to monitor heart rhythms in patients recovering from cardiac surgery. Participants wear the patch for up to a week after leaving the intensive care unit. The goal is to see if the device can reliably t…

This trial tests two methods for taking children off mechanical ventilation after heart surgery: pressure support ventilation (PSV) and automatic tube compensation (ATC). The goal is to see which approach reduces the work of breathing and improves lung function. The study include…

Severe aortic stenosis narrows the heart's aortic valve, and current guidelines recommend waiting until symptoms appear before replacing it. But MRI scans show that up to half of patients already have heart scarring by then, which doesn't fully reverse after surgery. This study w…

This trial investigates whether two simple, non-invasive tests can detect changes in brain oxygen levels in unconscious patients who have survived a cardiac arrest. The tests involve a controlled infusion of a blood-pressure-raising drug and a passive leg raise to increase blood …

This study tracks thousands of heart-surgery patients to identify factors that may increase the risk of postoperative delirium — a state of sudden confusion. Researchers are examining whether medications like statins and beta blockers, the use of a heart-lung machine, or the leng…

This study investigates whether people with acute decompensated heart failure are taking their prescribed medications as directed. Researchers will test urine samples from 100 patients at the emergency department to directly measure drug levels, and use questionnaires to explore …

This trial investigates whether a common genetic variation in the CES1 gene affects how the body processes two antiplatelet drugs, clopidogrel and ticagrelor. Healthy volunteers of Amish descent will take each drug for eight days in a crossover design, and researchers will measur…

This study looks at how mental stress affects the heart in men and women who have had a heart attack within the past 8 months. Participants undergo a stress challenge and are followed for up to 3 years to see if stress-induced changes in the heart are linked to future heart probl…

This study surveys 3,000 people with coronary heart disease who are about to start cardiac rehabilitation for the first time. Participants choose from 15 common questions about rehab—covering its purpose, methods, benefits, risks, and cost—or write their own. The goal is to under…

This trial investigates whether a short stay at high altitude (up to 3,545 meters) is safe for people with asymptomatic moderate or severe aortic stenosis. Participants will undergo heart tests—including ECG, echocardiography, and exercise stress tests—both at low altitude and af…

This study checks whether implanted heart devices (ICDs and CRT-Ds) can measure breathing rates as accurately as a standard capnography machine. Researchers will compare readings from the device's special Holter mode with those from capnography in people with heart failure. If th…

This study tests a new way of delivering breaths during CPR called chest compression synchronized ventilation (CCSV), which times each breath to occur between chest compressions. Researchers will compare it to standard ventilation in 50 adults who suffer cardiac arrest outside th…

This study looks at whether a score based on heart-support medications (the vasoactive-inotropic score, or VIS) can help doctors decide the best time to start ECMO in patients who develop severe heart failure after cardiac surgery. Researchers will review medical records from nea…

This study examines whether closing the left atrial appendage with a device called AMULET changes how well the heart relaxes. It includes 100 adults with atrial fibrillation who are at high risk for stroke but cannot take blood thinners. Researchers measure heart function using u…

This study analyzes data from over 3 million patients in China's Chest Pain Center registry to understand how people with acute chest pain are diagnosed and treated in real hospitals. It focuses on conditions like heart attacks, unstable angina, aortic dissection, and pulmonary e…

This study tested whether a special MRI scan of the wrist can detect amyloid deposits in people with systemic amyloidosis, a condition where abnormal proteins build up in organs. Researchers enrolled 128 adults, including patients with cardiac amyloidosis and healthy volunteers. …

This study looks at how well the Melody valve holds up when used to replace the mitral or tricuspid heart valves. Researchers will review medical records from patients who had this valve surgically placed before December 2014. They will measure valve function, any narrowing or le…

This study tests a two-year educational program for medical and physician assistant students in rural areas. The curriculum includes classroom sessions, simulations, and community rotations to improve teamwork skills. Researchers measure changes in knowledge, attitudes, and team …

This study looks at how blood flow to the fetal brain is affected in babies with congenital heart disease and whether it relates to their development after birth. Pregnant women with a fetus known or suspected to have a heart defect will have a fetal echocardiogram, then breathe …

This study compares four different chest compression techniques for infant CPR using a manikin. Emergency medicine residents will perform two minutes of CPR with each technique—two-finger, three-finger, heel-of-one-hand, and two-thumb—in a random order. Researchers measure compre…

This study compares two ways to access blocked leg arteries during a procedure to restore blood flow: through the arm (brachial artery) or the groin (femoral artery). The goal is to see which approach leads to fewer complications, such as bleeding or artery damage. Participants a…

This study looks at how mepolizumab (Nucala), a treatment for severe eosinophilic asthma, impacts emotions and mental well-being in patients and their partners. Researchers will track changes in feelings like anxiety, depression, and stress using questionnaires and interviews. Th…

This study investigates whether a blood test measuring how platelets clump under high shear forces can distinguish a first acute coronary syndrome from a recurrent one. Researchers will enroll 97 adults with unstable angina or early heart attack. The goal is to see if this test o…

This study looks at whether a substance in the blood called suPAR can help predict serious health events in people with severe aortic stenosis or regurgitation. Researchers will measure suPAR levels and track participants for two years to see if higher levels are linked to death,…

This study uses healthcare claims data from nearly 24,000 people to see if it can reproduce the results of the EMPEROR-Reduced trial, which tested the diabetes drug empagliflozin against sitagliptin in heart failure patients. The goal is not to test a new treatment, but to learn …

This study tests whether a single training session can improve police officers' ability to recognize agonal breathing — an abnormal gasping pattern that can be mistaken for normal breathing during cardiac arrest. Over 3,400 officers in New Taipei City will take a 20-minute CPR re…

This study analyzes data from over 377,000 people who had a heart attack and were prescribed blood thinners (clopidogrel, ticagrelor, or prasugrel) in Germany and the United States between 2011 and 2024. Researchers aim to describe how often each drug is used and how much it cost…

This study uses healthcare claims data from nearly 40,000 people to see if the results of a major clinical trial (EMPEROR-Preserved) can be reproduced in a real-world setting. Researchers are comparing two diabetes drugs, empagliflozin and sitagliptin, in patients with heart fail…

This study explores whether a web-based gamification app can improve nursing students' knowledge and skills in cardiopulmonary resuscitation (CPR). About 86 students will use the app, which includes practice questions, a timer, and a leaderboard to track scores. Researchers will …

This pilot study looks at how common iron deficiency is in people who have recently had a heart attack. Researchers will test iron levels in up to 70 patients and review their medical records. The goal is to gather early data to plan a larger study on whether treating low iron co…

This study tests whether a tool called the HEART score can accurately predict the risk of serious heart problems in people who come to the emergency room with chest pain. The HEART score uses medical history, EKG results, age, risk factors, and a blood test to classify patients a…

This study investigates whether people with late-onset Pompe disease have a higher risk of severe blood vessel problems in the brain and aorta. Researchers will collect medical and genetic data from adults with Pompe disease and from those who have had a brain aneurysm or bleedin…

This study looks at whether cardiac autonomic neuropathy (nerve damage that affects heart rate control) changes the heart's electrical recovery time (QT interval) in people having coronary artery bypass surgery. Researchers will test nerve function before surgery and measure hear…

This observational study looks at how anthracycline chemotherapy affects inflammation, oxidative stress, and heart function in adult women who had breast cancer. Researchers measure blood markers and use echocardiograms to assess heart changes about 10 years after treatment. The …

This study looks at whether the neck-to-waist ratio can help identify patients with high blood pressure and a specific type of heart attack. Researchers measured body shapes of 238 adults arriving at the emergency room with chest pain. The goal is to see if simple body measuremen…

This study uses advanced heart imaging to understand how blood flows inside the heart in people with cardiac amyloidosis, a condition where abnormal proteins build up in heart tissue. Researchers will compare these images with those from healthy volunteers to find unique patterns…

This study examined bleeding inside the heart muscle (intramyocardial hemorrhage) in 60 patients who had a severe type of heart attack called STEMI. Researchers compared two treatment strategies: giving clot-busting drugs followed by a procedure to open the artery, versus going s…

This completed study looked at 260 patients with ischemic cardiomyopathy (a weak heart due to blocked arteries) who had heart surgery. The goal was to develop a personalized approach to choose the best type of surgery and predict risks and outcomes. Researchers used imaging, bloo…

This study tested a decision algorithm to help doctors diagnose the cause of eosinophilia (high levels of a type of white blood cell). The algorithm guides which tests to do and in what order. Researchers enrolled 53 patients and measured how many followed the algorithm correctly…

This study follows 340 people with atrial fibrillation who are having their first ablation procedure. Researchers will track heart rhythm using remote monitoring, along with imaging and blood tests, to find which factors—like patient health, heart structure, or electrical signals…

This study tests a guidance algorithm that tracks the position of an ultrasound probe in real time to help non-specialists capture standard heart images. Researchers will compare the probe positions suggested by the algorithm with those chosen by experts. The goal is to make echo…

This study looked at 179 heart failure patients who used remote monitoring after a hospital stay. Researchers tracked how long patients kept using the system and interviewed some who stopped to understand why. The goal is to learn what helps or hinders sticking with remote monito…

This study looked at how two types of drug-coated heart stents (Orsiro and Resolute Integrity) heal inside the arteries of 50 people with stable heart disease. Researchers used a special camera to check the healing 4 months after the stents were placed. The goal was to see if one…

This completed study looked at blood samples from 47 patients in France (part of a larger European study) to find biological markers linked to diastolic heart failure in people with metabolic syndrome. The goal was to confirm earlier findings about these markers. Participants had…

This study looked at 100 people with coronary artery disease who had a heart procedure through the wrist. Half got a short sheath and half got a long sheath. The goal was to see which one leads to fewer blockages in the radial artery. Researchers used ultrasound to check for bloc…

This study looked at 70 people aged 75 and older with atrial fibrillation who were taking a Xaban blood thinner (dabigatran, rivaroxaban, or apixaban) during an unplanned hospital stay. Researchers wanted to see if certain clinical or lab factors were linked to higher drug levels…

This study looked at over 2,100 patients aged 80 and older with atrial fibrillation who were taking the blood thinner warfarin. Researchers wanted to see if having multiple other health conditions (comorbidities) made it harder to keep their blood thinning levels stable. The goal…

This study examined how being obese (BMI over 30) affects hospital outcomes after coronary artery bypass grafting (CABG) in 500 patients with chronic ischemic heart disease. Researchers tracked death rates, neurological injury, kidney injury, breathing machine time, and need for …

This completed study looked at 172 patients who received either a new-generation biological aortic valve or a traditional one during heart surgery. Researchers tracked survival and valve function over five years to see how the newer valves compare. The goal is to provide real-wor…

This study looked at two ways to improve CPR during cardiac arrest: changing how often rescuers switch (every 2 vs. 4 minutes) and using a device called CPRmeter that gives real-time feedback on chest compressions. Researchers measured the quality of compressions in 51 patients. …

This study tested whether a newer type of MRI called 4D flow can more accurately measure leakage in the pulmonary valve and heart chamber size in people born with tetralogy of Fallot who had corrective surgery. Researchers compared 4D flow MRI with standard 2D MRI in 21 patients …

This completed observational study looked at 4500 patients admitted to internal medicine wards with heart failure, COPD, or chronic kidney disease. Researchers aimed to identify which other chronic conditions tend to cluster with these diseases, and how those clusters affect pati…

This study tested whether simpler ultrasound measurements can accurately predict left ventricular function in patients with septic shock. Researchers enrolled 80 patients and compared standard heart function tests (LVEF and GLS) with easier-to-collect parameters like mitral annul…

This study tested whether giving personalized nutrition training to mothers of children with congenital heart disease helps their kids grow better after heart surgery. The training covered feeding from birth to age 3, including breastfeeding and starting solid foods. Researchers …

This completed study looked at 44 patients who had lung cancer surgery to understand how the arteries in the lungs can vary from person to person. Using CT scans and 3D models, researchers mapped these variations to help surgeons avoid complications during lobectomy. The goal was…

This study follows 200 adults who have elective coronary bypass or heart valve surgery to see how their physical abilities, lung function, and muscle strength change after the operation. Researchers measure walking speed, balance, handgrip strength, and breathing tests before and…

This small, completed study tested whether special pacing signals from a pacemaker could help control blood pressure in people with slow heartbeats. Five adults who needed a pacemaker or similar device took part. Researchers measured blood pressure and heart function during brief…

This study looks at how inherited heart rhythm problems (like Long QT Syndrome) and heart muscle diseases (like Hypertrophic Cardiomyopathy) affect the quality of life and physical activity of children aged 6 to 18. Researchers will compare 107 children with these conditions to 1…

This study looked at 130 adults who survived a cardiac arrest outside the hospital and were treated with cooling therapy. Researchers measured two simple tests—a blood protein level and a motor response score—to see if they could predict brain function 6 months later. The goal is…

This study follows 150 people with bicuspid aortic stenosis—a narrowed heart valve present from birth—who receive a transcatheter aortic valve replacement (TAVI) using the Evolut Pro or Evolut R XL device. Researchers will measure how well the valve works over time, including blo…

This study reviewed records of 630 adults who survived a cardiac arrest and were treated in an ICU in Italy over 14 years. Researchers compared outcomes across three time periods when different official treatment guidelines were in use. The goal was to see if newer guidelines led…

This completed study looked at whether four easy-to-use nutrition scoring tools (GNRI, MNA-SF, PNI, and NAF) can predict serious lung complications after heart surgery in 217 patients aged 60 and older. Researchers tracked problems like pneumonia, blood clots in the lungs, and ne…

This study looked at whether ECMO, a machine that does the work of the heart and lungs, helps people with severe COVID-19 who have lung failure or heart failure. Researchers tracked 761 patients across France to see how many survived and how quickly they recovered. The goal was t…

This study reviewed information from 683 adults with obstructive hypertrophic cardiomyopathy who took mavacamten through a support program in Canada. Researchers looked at patient characteristics and how long they stayed on the medication. The goal was to understand real-world us…

This study looked at whether a quick bedside test (Hemochron Jr) gives the same results as standard lab tests for measuring blood clotting in people having planned heart bypass surgery. Twenty patients were tested before and after being placed on a heart-lung machine. The goal wa…

This study tested a skin sensor that measures carbon dioxide (CO2) levels continuously during exercise, comparing it to standard blood tests. Researchers included 140 healthy volunteers and people with lung or heart conditions. The goal was to see if the sensor could accurately t…

This study tested a simple flowchart to help doctors monitor and manage heart conduction problems after transcatheter aortic valve replacement (TAVR). The goal was to see if this approach could safely reduce the need for intensive care and permanent pacemakers. Researchers follow…

This study tracked 883 adults with atrial fibrillation to see how consistently they took their direct oral anticoagulants (blood thinners). Researchers used pharmacy refill records and a simple questionnaire to measure adherence. The goal was to find patterns that could help iden…

This completed study observed 528 adults who had heart surgery and were admitted to the intensive care unit (ICU). Researchers tracked deaths, serious complications like stroke or infection, and patient details to identify risk factors. The goal is to use this information to impr…

This study looked at whether it's safe to skip the defibrillation test when implanting a subcutaneous implantable cardioverter-defibrillator (S-ICD). The test involves purposely triggering a dangerous heart rhythm to make sure the device can stop it. About 965 people took part. T…

This study tested if using the lower leg to push on the chest during CPR works as well as the standard hand method. About 99 paramedic and nursing students performed two minutes of chest compressions on a manikin, either with their hands or their dominant foot. The goal was to se…

This study tested whether specially designed educational videos, sent through a mobile messaging app, could help people with coronary heart disease improve their fitness and heart health knowledge during a 12-week home-based cardiac rehabilitation program. Twenty-one participants…

This study looked at 49 adults aged 30-65 who had a first heart attack about 4 months earlier. Researchers used brain scans to see if changes in the brain's blood vessels or structure are linked to memory or thinking problems. The goal is to better understand these issues and hel…

This study looks at people with end-stage heart failure who have a mechanical heart pump (LVAD). It checks whether the pump's flow rate, adjusted for body size, is linked to liver and kidney function and the chance of being readmitted to the hospital. The goal is to see if this m…

This study tested whether individually adjusting the timing (atrioventricular delay) of a pacemaker improves heart function in 39 adults with conduction system pacing. Researchers used echocardiography to optimize settings and measured changes in heart strain, pumping ability, an…

This study looked at damage to the protective lining of blood vessels during heart bypass surgery. Researchers measured a substance called syndecan-1 in the blood of 147 patients to see when and why this damage happens. The goal was to understand how surgery affects the body and …

This completed study looked at 26,000 adults with chronic heart failure in France who used a web app for remote monitoring. Researchers compared those who were digitally literate with those who were not, tracking hospitalizations and death rates. The goal was to understand whethe…

This study looked at whether giving heart attack patients personalized diet advice during early cardiac rehab helps them eat better. Fifty adults who recently had a heart attack took part. Some got standard rehab, while others also received one-on-one counseling from a dietitian.…

This study tested whether long-term digital education, like online lessons or app-based guidance, helps people who had a heart attack lower their LDL (bad) cholesterol more than standard care. Researchers followed 121 patients in the Czech Republic for 12 months. The goal was to …

This study looked at how common cardiac cachexia (unintentional weight loss) is in people with advanced heart failure and how it affects their outcomes. Researchers followed about 200 patients for one year to compare survival and hospitalizations between those with and without th…

This study looked back at records of 200 adults who had heart valve surgery to see if treating gum disease beforehand lowered their risk of infection or death after the operation. Researchers checked dental X-rays and medical charts from 2015 to 2024. The goal is to understand if…

This study looked at 40 children with congenital heart disease who had heart surgery. During surgery, doctors used a special filtering technique called SBUF-SMUF to remove inflammatory substances from the blood. The goal was to see how this affected inflammation and recovery. The…

This study tested whether using a pulse oximeter (a small sensor on the foot or hand) to measure oxygen levels in all seemingly healthy newborns can help find hidden, life-threatening heart defects early. Over 44,000 babies took part. The goal was to see if this screening reduces…

This study measured how two common blood thinners (rivaroxaban and apixaban) behave in 193 adults with active cancer who also had blood clots or atrial fibrillation. Researchers aimed to understand factors like age, weight, and kidney function that affect drug levels. The goal wa…

This study looked at how blood vessel function relates to heart blockage in people with a genetic heart condition called hypertrophic cardiomyopathy. Researchers measured blood flow and vessel flexibility in 40 adults. The goal was to understand the connection, not to test a trea…

This study tested whether a special heart ultrasound (speckle tracking echocardiography) can predict which patients need an implantable defibrillator (ICD) after a large heart attack. Researchers followed 200 patients for 90 days to see whose heart function stayed low enough to q…

This study checked how often nerve damage (neuropathy) occurs in people with a rare heart condition called wild-type TTR cardiac amyloidosis. Researchers examined 65 patients using interviews, physical exams, and nerve tests (electromyograms). The goal was to find out if nerve pr…

This study tested whether a nurse-led education program helps people with heart failure improve their self-care, medication and diet compliance, and confidence in managing their condition. Researchers enrolled 66 adults with stable heart failure and provided a 30-minute training …

This study looked at whether electrically stimulating scarred heart muscle after a heart attack could improve how well the heart contracts. Ten patients undergoing a standard procedure for abnormal heart rhythms had their heart function measured before and after stimulation of th…

This study tested whether a CT scan before a heart procedure could help doctors better target the source of a dangerous heart rhythm called ventricular tachycardia. 23 people who had a prior heart attack and needed catheter ablation took part. The approach aimed to see if using C…

This study looked at new ways to test blood clotting in 200 children with congenital heart disease undergoing surgery. The goal was to see if newer technologies like TEG, ROTEM, and T2MR could help doctors manage bleeding more precisely and reduce the need for blood transfusions.…

This study looked at why people with a certain type of heart failure (HFpEF) have trouble exercising and feel short of breath. Researchers tested whether different exercise programs (using the whole body or just one leg) could improve fitness. The study involved 93 adults aged 60…

This study looks at 250 people with atrial fibrillation who are having a hybrid ablation procedure. Researchers want to find out which factors—like clinical history, blood markers, and genetics—are linked to the procedure failing. The goal is to create a risk profile that helps d…

This study looked at 150 Caribbean Hispanic adults with heart disease or stroke risk who take the blood thinner clopidogrel. Researchers wanted to see if certain gene variants affect how well the drug works. The goal is to understand why some people get less benefit and to pave t…

This study tested a new catheter designed to measure the heart's electrical signals in people with irregular heartbeats (atrial fibrillation, ventricular fibrillation, or junctional tachycardia). Researchers enrolled 42 adults to see if the device could better identify abnormal e…

This completed study looked at 1000 people who had a coronary stent placed to see if a score based on insulin resistance could predict whether the stent would narrow again (restenosis). Researchers measured insulin resistance using routine blood tests and checked for restenosis w…

This study looks at whether bacteria living on heart valves can be detected in the blood. Researchers collected blood, valve tissue, and other samples from 100 patients having aortic valve replacement. The goal is to see if a simple blood test could guide treatment and predict co…

This study looked at two different heart stents (tiny mesh tubes used to open blocked arteries) to see which one works better in routine hospital care. Over 1,000 patients who needed a stent took part. The goal was to compare costs, procedure time, and how many extra devices were…

This study tested a new way for doctors to discuss CPR with older, seriously ill patients and their families. Instead of the usual conversation, doctors followed a step-by-step guide that focused on the patient's values and explained why CPR might not help. The goal was to see if…

This study collected medical and social information from 111 patients having their first ablation for atrial fibrillation, a common heart rhythm problem. Researchers wanted to understand how factors like income, education, location, and ethnicity might affect who receives this tr…

This completed study looked at how rising temperatures affect people with chronic conditions like heart disease, diabetes, and depression. Researchers in Germany and Italy surveyed 176 patients to see what symptoms they experienced during heat and what protective steps they took.…

This early-phase study in 17 healthy male volunteers examines how a natural sugar modification on the heart hormone ANP changes its effects on blood pressure and fluid balance. Participants receive intravenous infusions of both the sugar-modified and unmodified forms of the hormo…

This study looked at how a sedative called dexmedetomidine affects heart function during off-pump coronary artery bypass surgery. Researchers used ultrasound to measure heart pumping ability in 36 patients with coronary artery disease. The goal was to see if this medication helps…

This study looked at 200 adults having a cardiac arrest outside the hospital to see how long it takes paramedics to get a working IV or IO line. The goal was to find out what causes delays or failures when trying to start an IV first and then switching to an IO if needed. The res…

This study examines how often patients and their relatives develop post-traumatic stress disorder (PTSD) after a sudden cardiac arrest. Researchers interviewed 45 people (20 survivors and 20 relatives) within a week of the event and again at 3 months using standard questionnaires…

This study looked at how certain heart devices change a blood-clotting protein called von Willebrand factor. Researchers studied 500 adults with heart failure or aortic stenosis who received a mechanical heart pump or a valve replacement. The goal was to understand when these pro…

This study looked at 70 people who had a tissue heart valve replacement. It compared two common blood-thinning treatments (high-dose aspirin alone vs warfarin plus low-dose aspirin) to see which one better prevented tiny blood clots from traveling to the brain. Researchers used u…

This study followed 268 adults with end-stage kidney disease on dialysis. Each participant wore a Holter heart monitor for 7 days to track irregular heartbeats. Researchers then looked for links between those heart patterns and serious outcomes like sudden cardiac death, heart at…

This study collected information from over 15,000 people hospitalized with cardiomyopathy, a heart muscle disease. Researchers looked at how much these hospital stays cost and what the money was spent on. The goal was to understand the real-world financial impact and help manage …

This study looked at how often cardiac amyloidosis occurs in older Tunisian patients with a type of heart failure called HFpEF. Researchers used heart scans and imaging to find cases and identify early warning signs. The goal is to make diagnosis easier and faster for this seriou…

This study tracked 555 adults hospitalized with acute coronary syndrome (a serious heart condition) to see how quickly they called for help and what factors influenced their recovery. Researchers focused on delays in calling an ambulance and how those delays affected short- and l…

This pilot study looked at whether adding genetic risk information to standard heart disease counseling or health coaching helps people make healthier choices. 31 adults at risk for heart disease participated. The goal was to see if this approach is practical and can improve diet…

This study looked at how well a new heart monitor (Assert-IQ) detects atrial fibrillation (an irregular heartbeat) in people who have had a heart ablation procedure. 151 participants wore the monitor as part of their normal care. Researchers compared the monitor's readings to a s…

This study looked at 81 patients who had coronary artery bypass surgery to find out what factors affect how long they need a breathing tube afterward. Researchers checked things that happened before, during, and after surgery. The goal was to better understand what influences rec…

This study tracked 300 patients with severe aortic stenosis who had a minimally invasive heart valve replacement (TAVI) to see how long they stayed in the hospital and why some stayed longer than 3 days. The goal was to find out what factors, like needing a blood transfusion or a…

This study looked at whether CT scans can help doctors choose the right size for the Perceval sutureless heart valve. The valve is used to replace a leaky aortic valve. Researchers studied 50 patients to see if CT-based sizing leads to good early results after surgery, like prope…

This completed study involved 250 adults with AL amyloidosis, a rare disease where abnormal proteins damage organs. Researchers analyzed patient samples and data to find biological markers that predict how well someone will respond to initial treatments. The goal is to help docto…

This study looked at different types of immune cells (eosinophils) in the blood of people with asthma, chronic sinusitis with nasal polyps, or both, compared to healthy volunteers. The goal was to find patterns that could help doctors choose the best targeted therapy for each pat…

This study used computer simulations to compare three types of radiation (photons, protons, and carbon ions) for treating a dangerous heart rhythm called ventricular tachycardia. Researchers created treatment plans for 23 patients who were already scheduled for standard catheter …

This study tested a new ultrasound technique called ARFI to measure liver stiffness in 109 people, including healthy volunteers and patients with liver conditions. The goal was to understand normal stiffness values and how they change with disease or treatment. This is an observa…

This study looked at 502 people with heart failure who were getting an implantable defibrillator (ICD) to prevent sudden cardiac arrest. Researchers used a special MRI to see if heart scarring patterns could predict who would later need a shock from the device. The goal was to le…

This study screened 233 children aged 6 to 66 months with congenital heart disease for neurodevelopmental disorders like delays in communication, movement, and problem-solving. Researchers used a parent questionnaire to identify children at risk. The goal is to better understand …

This study gathered information from routine medical care for 198 adults with atrial fibrillation who had a prior procedure to close a small heart pouch (left atrial appendage occlusion) and later needed a heart ablation. Researchers looked at patient details, procedure steps, bl…

This study looked at whether using a heart ultrasound probe (TEE) during low-risk coronary artery bypass surgery should be done routinely or only when needed. Researchers enrolled 40 patients and checked if it was possible to randomly assign them to one of two groups. The goal is…

This study looked at how high-intensity interval training (HIIT) changes heart cells in people with heart failure. Forty stable patients were split into two groups: one did 36 sessions of HIIT plus standard medication, the other took medication only. Researchers measured fitness,…

This completed study followed over 7,200 heart patients in Tunisia to see how well they stick to their heart medications after a heart attack or procedure. Researchers simply observed and recorded data without giving any new treatment. The goal is to understand real-world medicat…

This study tested whether a special MRI scan (31P-MRS) can detect early signs of damage to heart and muscle cells caused by chemotherapy drugs like doxorubicin. Twelve cancer patients scheduled for chemo underwent three scans over time. The goal was to see if the scan could measu…

This study observed 49 adults hospitalized with acute heart failure to learn how fluid congestion behaves during treatment. Researchers tracked clinical signs, lab tests, and ultrasound measures, then followed patients for a year to see who was readmitted or died. The goal is to …

This study looked at 11 people with a repaired heart condition called tetralogy of Fallot who needed a new pulmonary valve. Researchers used MRI scans to measure heart muscle stiffness (fibrosis) and how well the heart pumped during rest and exercise. The goal was to see if these…

This study aimed to create a new questionnaire that measures how atrial fibrillation (AF) affects a person's quality of life. Researchers worked with 206 adults who have AF to develop and test this tool. The goal was to better understand the real-world impact of AF beyond just me…

This study looked at 468 Italian adults who take blood thinners (anticoagulants) to understand their health knowledge, quality of life, and confidence in managing their condition. Researchers used questionnaires to measure these factors and see how they relate to age, education, …

This study looked at how well a procedure called catheter ablation works for treating fast heart rhythms in people with congenital heart disease. Researchers treated 40 patients and followed them for one year to see if the abnormal heart rhythm came back. The goal was to understa…

This study looked at 300 women undergoing frozen embryo transfer as part of IVF treatment. Researchers measured progesterone levels in the blood to understand how the body processes the hormone. The goal was to find out if low progesterone on transfer day leads to higher failure …

This study looked at whether certain cells and substances in the blood can help predict if a person who has had a heart attack or unstable angina will have another heart problem within a year. Researchers took blood samples from 180 patients and tracked their health for one year.…

This study checked if certain blood markers can predict serious heart events like heart attack or death within a year after a stent procedure. Researchers measured two types of cells related to blood vessel health in 170 adults scheduled for a stent. The goal was to see if these …

This study looked back at the medical records of 168 adults who survived a cardiac arrest and were treated in the intensive care unit. Researchers wanted to find early signs that could predict which patients were more likely to die within 30 days or six months. By analyzing lab r…

This study compared two common sedation drugs, propofol and dexmedetomidine, in 65 older adults undergoing a less invasive heart valve replacement called TAVR. The goal was to see which drug leads to better kidney function, less confusion, and fewer complications after the proced…

This study looked at 155 people with early-onset atrial fibrillation to see if genetic testing can help doctors choose better treatments. Participants had heart imaging and ECG tests to find hidden heart muscle or rhythm disorders. The goal is to learn how genetics influence the …

This study looked at 30 people who had a heart attack and were treated with a procedure to open blocked arteries. Researchers used a special heart scan soon after treatment to see how much heart muscle was saved. They then checked if that scan could predict how well the heart wou…

This study looked at 321 people with pacemakers or heart monitors who had short, symptomless episodes of atrial fibrillation (silent AF). Researchers measured certain proteins in the blood to see if they could predict who might later have a stroke or other heart problems. The goa…

This study tested whether simple nudges—like an alert in a doctor's daily task list or an email comparing their prescribing habits to peers—could increase the use of two types of heart failure medications (SGLT2 inhibitors and MRAs) that are proven to save lives but are often und…

This study tested a 12-week virtual education program for primary care providers in North Carolina to improve how they manage atrial fibrillation (AFib). 70 providers joined online sessions to learn about AFib care and EKG interpretation. Researchers measured changes in provider …

This study tested a six-session virtual education program called 'AF at Home' for adults with atrial fibrillation. Participants attended Zoom classes over three weeks to learn about self-monitoring and managing their condition. The goal was to see if the program improved quality …