Discrete subaortic stenosis

This study tests a new device called Rapidlink, used during open surgery to repair or replace blood vessels in the chest. It involves 150 adults already scheduled for aortic surgery. The goal is to see if the device reduces major complications like stroke or death. Participants w…

This study compares two stomach-acid-lowering drugs—tegoprazan and rabeprazole—in about 3,300 heart disease patients who take blood thinners and are at high risk for stomach bleeding. The goal is to see if tegoprazan works as well as rabeprazole at preventing serious gut problems…

This study is testing a new type of biological heart valve that features an 'easy change' system, designed to make future replacements simpler. Researchers will implant these valves in 500 people with aortic valve disease and track complications like blood clots, infections, and …

This study tests whether a newer blood thinner (rivaroxaban) works as well as the standard drug (warfarin) for preventing clots and bleeding in people who have a mechanical aortic valve. About 1,300 adults who had valve surgery at least 3 months ago will take one of the two pills…

This study tests whether taking a daily fiber and magnesium supplement (WellBiome) for 6-8 weeks before heart surgery can improve recovery. Researchers will compare ICU time, complications, and hospital stay between 80 patients who get the supplement or a placebo. The goal is to …

This large phase 3 trial is testing whether adding vicadrostat to the existing drug empagliflozin can reduce the risk of heart problems in adults with type 2 diabetes, high blood pressure, and heart disease. About 11,800 participants will take either the combination or a placebo …

This study follows 1,200 people who received special fabric tubes (grafts) to repair or replace damaged arteries in the neck, belly, or legs. Researchers want to see how well the grafts work over time and how often problems like blockages or infections happen. It is an observatio…

This study looks at the long-term safety of the drug pelacarsen in people with high lipoprotein(a) and heart disease. About 5,700 participants who finished a previous pelacarsen trial will receive the drug and be monitored for side effects and heart events. The goal is to see if …

This study tests a pre-set treatment plan for managing heart rhythm issues that can occur after transcatheter aortic valve replacement (TAVR). The goal is to reduce the number of patients who receive a permanent pacemaker while ensuring no one is put at risk of sudden cardiac dea…

This trial tests a special cannula that captures debris during high-risk heart valve surgery. The goal is to see if it reduces the chance of stroke, kidney injury, and delirium. About 842 patients aged 60 and older will be randomly assigned to receive either the new device or a s…

This study is testing a digital app called VIRTUES that provides educational resources and treatment recommendations for heart conditions like atrial fibrillation and heart failure. Researchers will enroll 2000 patients across 11 modules to see if the app is easy to use and helps…

This phase 3 trial is testing whether adding baxdrostat to the standard drug dapagliflozin can better prevent heart failure and cardiovascular death in people with type 2 diabetes who already have heart disease and high blood pressure. About 11,300 participants will receive eithe…

This study tests a home-based cardiac rehabilitation program delivered through a custom app for people who have had a heart valve procedure. Participants who choose not to attend center-based rehab are randomly assigned to usual care, the app with self-guided content, or the app …

This study tests whether a special activity score, calculated from heart rate data, can help people who have completed cardiac rehab stick to exercise guidelines. About 318 participants will wear a smartwatch for 4 months and do an exercise test at the end. Researchers will compa…

This study compares two methods for closing the breastbone after open-heart surgery: rigid plate fixation (using a metal plate and screws) versus traditional wire cerclage (using stainless steel wires). The trial will enroll 250 adults at high risk for wound complications, such a…

This study tests whether text messages can help people who have finished cardiac rehab keep up healthy habits like weight management, physical activity, and taking medications. Researchers will enroll 400 people from groups often left out of heart research. The study compares dif…

This study tests a device called Efferon LPS that filters harmful substances from the blood during and after heart surgery. The goal is to see if it can reduce the risk of multiple organ failure, a serious complication. Researchers will enroll 60 adults having heart surgery with …

This study follows 225 adults who have the Ross procedure, a surgery that replaces a diseased aortic valve with the patient's own pulmonary valve. Researchers will track survival, hospital readmissions, and need for repeat surgeries over 1, 5, and 10 years. The goal is to confirm…

This study tests whether genetic testing can help veterans at high risk for heart disease start and stick with statin medications. About 410 veterans aged 40-75 with diabetes or heart disease who are not currently taking statins will receive either a genetic report on their stati…

This study tests a new method called decrement evoked potential (DeEP) mapping to guide catheter ablation for ventricular tachycardia (VT) in people with structural heart disease. VT is a fast, dangerous heart rhythm that can cause sudden cardiac arrest. The standard ablation pro…

This study tests whether adding digital coaching to home-based cardiac rehabilitation helps veterans complete more rehab sessions and improve their heart health. 150 veterans with heart disease will be randomly assigned to standard home rehab or home rehab plus a private social m…

This study tests a special balloon that uses shockwaves to crack calcium buildup in the iliac arteries, making it possible to deliver large aortic stents. About 40 adults with severe aortic disease and hardened arteries will be enrolled. The goal is to see if this approach is saf…

This study looks at whether people at moderate risk for heart problems should continue or stop taking aspirin before a colonoscopy. About 2,500 participants will be randomly assigned to take either aspirin or a placebo for a few days around the procedure. The goal is to see which…

This study tests a noninvasive radiation treatment (SBRT) for people with ventricular tachycardia, a dangerous heart rhythm that can cause sudden death. The 12 participants have structural heart disease and have not been helped by standard treatments like drugs or catheter ablati…

This study compares a single dose of targeted radiation (SBRT) to the standard catheter ablation procedure for reducing dangerous heart rhythms in people with advanced heart disease. Sixty participants will be randomly assigned to one of the two treatments. The main goal is to se…

This study tests a program that uses an AI chatbot, health coach, and home monitoring devices to help 300 adults with heart disease, diabetes, or kidney disease manage their conditions. The goal is to see if this approach reduces hospital visits, complications, and deaths over 6 …

This study tests a program called CVD-FIT for African American adults who struggle to afford food and are at risk for heart disease. Participants get monthly income support, weekly incentives to buy healthy food, and phone-based education on heart health. The goal is to see if th…

This study tests a new surgical technique called the 'Y incision' for people with a small aortic annulus (the ring where the heart valve sits) who need aortic valve replacement. The standard methods often limit how large a replacement valve can be placed, which can lead to poor b…

This study is testing whether giving air conditioners and a $100 electricity subsidy to older adults in Boston neighborhoods can reduce heat stress, heat strain, and related health problems. One hundred participants aged 55-95 who don't have AC will be randomly assigned to receiv…

This study tests whether bempedoic acid, a cholesterol-lowering drug, can reduce artery inflammation and improve heart health in people with HIV. About 121 adults aged 40 and older with well-controlled HIV and at least one heart disease risk factor will receive either the drug or…

This study tests an artificial intelligence (AI) model that can screen for heart valve disease using standard chest CT scans that people already get for other reasons. The goal is to see how well the AI catches moderate-to-severe cases without needing extra tests or contrast dye.…

This study tests whether a portable electronic stethoscope, combined with machine learning, can accurately detect valvular heart disease. About 125 people with and without the condition will use the device and also receive standard heart tests. Researchers will compare the device…

This study explores whether kinocardiography (KCG), a portable device that measures chest vibrations from heartbeats, can diagnose aortic valve disease and thoracic aortic aneurysm. Researchers will compare KCG readings with standard imaging in 180 adults, including those with an…

This study is testing whether a small implantable heart monitor (Reveal LINQ) can detect serious heart block in people who develop a new electrical problem (left bundle branch block) after having their aortic valve replaced (TAVI). About 80 participants will get the monitor and b…

This study is testing a special mattress that can measure heart rate, breathing, temperature, and body position without touching the patient. It is designed for people with heart disease who are in the hospital. The goal is to see if this wireless system works as well as standard…

This study checks if a quick, non-invasive finger test (QuantaFlo HD) can detect early signs of heart dysfunction. Researchers will compare the finger test results with standard heart ultrasound measurements in 600 adults who have risk factors like high blood pressure or diabetes…

This study is testing whether a machine learning algorithm can accurately detect heart murmurs that point to structural heart disease. Researchers will record heart sounds from 125 adults using two different digital stethoscopes and compare the algorithm's findings to standard ec…

This study is testing whether having a dental checkup before heart valve surgery can prevent serious complications like infection of the heart lining, repeat surgery, or death. About 1,300 adults scheduled for valve surgery will be randomly assigned to either get a dental screeni…

This study tests a smartphone app designed to help people prepare for heart surgery through exercise, nutrition tips, and telehealth check-ins. About 40 adults awaiting surgery will either use the app or receive standard care. Researchers want to see if the app is easy to use, ac…

This study tests a 6-session program called BE-FIT that helps cardiac rehabilitation patients reduce anxiety about exercise. The program uses gradual exposure to feared sensations, prevents safety behaviors, and uses activity monitors for feedback. Researchers will enroll 146 adu…

This study tests two different stitch materials (PDS and Vicryl) for closing groin incisions after planned vascular surgery. About 259 adults will be randomly assigned to one stitch type or the other. The goal is to see which material leads to fewer wound problems.

This study tests whether a daily movement program led by a kinesiologist can reduce frailty in 60 hospitalized heart patients. Frailty makes people weaker and more likely to have longer hospital stays or be readmitted. The program encourages simple activities like standing, walki…

This study tests whether adding a program that targets sleep and stress (called RESST) to standard cardiac rehabilitation helps heart patients recover better. About 200 adults with heart conditions who also have poor sleep or high stress will take part. Researchers will measure s…

This study tests a web-based app called IAMABLE that provides evidence-based rehabilitation strategies for people with chronic conditions like heart disease, arthritis, or neurological disorders. Fifty adults aged 45 to 75 will use the app for 4 months to set goals and learn abou…

This study tests whether a type of talk therapy called Behavioral Activation, delivered via home-based telehealth, can improve social functioning and mood in veterans recently discharged from the hospital for a heart condition. About 132 veterans with depression will receive eith…

This study compares a women-only cardiac rehabilitation program to the standard mixed-gender program for women with heart disease. Sixty women aged 40-80 will attend 36 sessions over 12 weeks, with extra women-focused education. Researchers will measure attendance, completion rat…

This study tests a program called One-Mind One-Heart that combines mindfulness and behavior change skills to help older adults with HIV reduce stress and improve heart health. The program includes text messages and covers topics like physical activity, diet, and substance use. Th…

This study tests whether a standardized, step-by-step protocol for giving blood thinner injections (low-molecular-weight heparin) can reduce bruising and pain in heart patients. About 180 patients in cardiac care units will be randomly assigned to receive injections either by the…

This registry study will enroll 200,000 high-risk cardiac patients to see how well an AI platform called Willem can detect heart problems from standard ECGs. The AI's readings will be compared to expert cardiologist diagnoses, but the AI results won't be shared with doctors, so p…

This study aims to learn more about how diseases related to blood clots, the immune system, and blood vessels start and change over time. Researchers will enroll up to 1,000 people aged 5 and older, including those with these conditions, their healthy relatives, and healthy volun…

This study aims to learn more about heart and blood vessel diseases by observing people who have them or are at risk. Researchers will collect samples and perform tests like imaging and stress tests on up to 5,000 participants, including healthy volunteers and relatives of affect…

This study creates a large database of about 12,000 people with and without heart disease. Researchers collect medical information and blood samples to analyze factors that influence heart conditions like coronary artery disease, heart failure, and stroke. The goal is to better u…

This study looks at medical records of 1,000 older heart patients in Russia to see if they were prescribed potentially harmful medications during the COVID-19 pandemic. Researchers will use a medical database to count how often these risky prescriptions happened and check for dan…

This study is creating a large collection of blood, urine, stool, and heart tissue samples from 10,000 people with and without heart or metabolic conditions. The goal is to store these samples along with medical information to speed up future research into what causes these disea…

This study is testing whether simple nutritional checks before heart surgery can predict how well patients recover. Researchers will give 250 patients questionnaires, blood and urine tests, and measure grip strength and body composition. They will then see if these measures are l…

This study is collecting medical data and biological samples from people with genetic conditions affecting the heart and blood vessels, their relatives, and healthy volunteers. The goal is to better understand these diseases, improve diagnosis, and lay the groundwork for future t…

This study is tracking 500 people who receive the INSPIRIS RESILIA aortic valve during surgery. Researchers will measure how well the valve works by checking blood flow and leakage over time. The goal is to see how the valve performs in everyday medical practice.

This study at Mayo Clinic looks at how changes in the blood vessels of the lungs affect people with heart valve disease. Researchers will use echocardiograms during routine heart catheterization to measure these changes in 600 adults scheduled for valve procedures. The goal is to…

This study looks at whether people with type 2 diabetes, COPD, or heart disease who join a health program in Halsnaes Municipality improve their physical function and well-being. About 194 adults will be tracked before and after the program using tests and questionnaires. The goa…

This study looks at how people with ME/CFS (chronic fatigue syndrome) and people with heart conditions feel after a bike exercise test. Researchers want to see if the type and timing of symptoms after exercise are different between the two groups. 80 adults will take part, and th…

This study tracks 300 adults with aortic disease to measure how their condition impacts quality of life, fatigue, mental health, and ability to work. Researchers will use questionnaires over 12 months to gather data. The goal is to better understand these challenges and help desi…

This study follows 300 people who had hospital-acquired pneumonia to see how it affects their heart and lungs over 18 months. Researchers will take blood samples, swabs, and perform heart and lung tests to understand the link between pneumonia and later cardiovascular problems li…

This study is testing a comprehensive MRI scan to see if it can better diagnose different heart conditions. Researchers will scan 2,000 adults with suspected or confirmed heart disease. The goal is to create a standard imaging method that improves early detection and risk predict…

This study is testing whether artificial intelligence can predict if someone will develop one of five common diseases: diabetes, heart disease, breast cancer, back pain, or arthritis. Researchers will collect health data from 1,000 adults aged 30 to 60, including medical records,…

This study uses advanced heart MRI to see how bariatric surgery and cardiac rehabilitation change the heart's structure and function. Researchers will scan 150 adults before and 6-12 months after these metabolic treatments. The goal is to understand how the heart adapts to these …

This study will use a new type of cardiac MRI to look at the heart's microscopic structure in 1,000 people—both healthy volunteers and those with various heart conditions. The goal is to see if this advanced imaging can detect early signs of heart damage better than standard test…

This study is building a huge database of up to 800,000 Korean patients with heart or brain vascular disease. By tracking their health over many years, researchers hope to understand the unique patterns and risk factors in this population. The goal is to create a platform that ca…

This study is creating a large biobank of blood, DNA, plasma, and tissue samples from 15,000 people with and without heart and aortic diseases. Researchers will use this information to better understand conditions like aortic aneurysm, heart failure, and bicuspid aortic valve. Th…

This study aims to develop better MRI methods for imaging the heart and brain, and to describe heart diseases using these new techniques. It will also investigate whether gadolinium, a common MRI contrast agent, stays in the body long after use. Up to 5,000 healthy volunteers and…

This study tests whether a machine-learning model can predict serious heart events in children admitted to the hospital. The model alerts doctors when a child may need a palliative care consultation. Researchers will compare outcomes before and after the model is used, involving …

This study will use advanced heart MRI scans on up to 100,000 people with known or suspected heart disease. The goal is to learn how these scans can help doctors better understand, diagnose, and treat different heart conditions. Researchers will track participants' health over ti…

This study tests whether artificial intelligence (AI) can help cardiologists read echocardiograms (heart ultrasounds) more quickly and consistently. Researchers will give AI analysis to doctors in real time as they review heart images from 50 participants with valve disease. The …

This registry will follow 2,500 people who receive Abbott heart devices, such as implants for holes in the heart or replacement heart valves. The goal is to check how safe and effective these devices are when used in everyday hospital practice. Data will be collected from standar…

This study is a registry that will follow up to 2,700 people who have received or will receive a Medtronic heart valve product during surgery. The goal is to monitor the long-term safety and performance of these devices by identifying any unexpected problems or trends. Participan…

This study creates a large collection of blood, tissue, and medical information from up to 5,000 people with or at risk for pediatric heart disease. Researchers will use these samples to better understand the disease and find new ways to diagnose or treat it in the future. Partic…

This study measures how hard children with conditions like neuromuscular disease, scoliosis, or heart problems work to breathe. Researchers use a thin tube placed through the nose into the esophagus to measure breathing muscle strength and effort. The goal is to better understand…

This registry is collecting information from 8,000 people undergoing heart or chest surgery. The goal is to see how factors before and during surgery relate to serious complications like death, shock, or infection. By analyzing this data, researchers hope to find ways to improve …

This study is testing a tool called B-COMPASS that uses a 22-question survey to predict whether people will follow their prescribed treatments. Researchers will enroll 3100 adults with cardiovascular, endocrine, immune, nerve, cancer, or rare diseases across Europe. The goal is t…

This study is testing whether giving probiotics after heart surgery can improve recovery by changing the bacteria in the gut. Researchers will measure certain chemicals in the blood that come from gut bacteria. The trial involves 30 adults scheduled for heart surgery, who will re…

This study looks at how the brain, nerves, and blood vessels interact in 80 adults having heart surgery. Researchers will measure brain activity, blood flow, and heart reflexes to better understand the link between heart disease and depression. The goal is to develop new tools fo…

This study collects blood samples from 1500 adults at risk for heart disease to discover new biomarkers that can predict future heart attacks, strokes, or blocked leg arteries. Participants are seen at a specialized prevention center and provide samples and health data at the sta…

This study tests whether a single PET tracer (FDG) can measure both blood flow and sugar use in the heart, instead of needing two separate tracers. Researchers will compare results from FDG with a dedicated flow tracer in 60 healthy adults and people with heart disease. The goal …

This study tests a program called Heart-to-Heart, where community health workers help low-income patients make informed choices about cardiac rehab after a heart event. About 50 adults from Johns Hopkins Hospital will take part. The goal is to see if the program is practical and …

This study will enroll 5,000 adults with chronic heart conditions like heart failure, high blood pressure, or aortic stenosis. Participants will wear a Prolaio digital health patch that monitors heart rate, breathing, and other vital signs. The goal is to observe how these condit…

This study is reviewing medical records from 5,000 heart and blood vessel surgery patients to find factors that influence recovery and survival. Researchers are looking at data from 2001 to 2013 to identify what leads to complications or death after surgery. The goal is to improv…

This study looks at whether a special heart ultrasound measurement, called global longitudinal strain (GLS), can predict if a person will have trouble coming off the heart-lung machine during heart surgery. About 213 adults having planned heart surgery will have their hearts meas…

This study collects small heart tissue samples from 400 adults undergoing heart procedures. Researchers will analyze these samples to find new markers that could help diagnose heart diseases earlier and better understand how the heart works in health and disease. The goal is to i…

This study uses a special eye scan called OCTA to measure the density of tiny blood vessels in the retina. Researchers will compare results from 64 people—half with cardiovascular disease and half healthy—to see if the scan can reliably detect vessel changes linked to heart probl…

This study is testing whether adding genetic and imaging information to standard risk assessments can better predict heart disease in 30,000 healthy Italian adults aged 40-80. Participants will have their risk calculated using traditional methods and then again with the added dat…

This study is testing a virtual patient navigation program for 260 English, Chinese, or Spanish speakers with breast cancer or heart disease. The goal is to see if a phone-based portal can help underserved people get the support they need, even though it won't fully replace in-pe…

This observational study is testing whether advanced heart imaging (MRI or CT scans) can find blood clots in the heart that standard ultrasound might miss. It involves 125 people who had a stroke of unknown cause and have mild heart disease. The goal is to better understand strok…

This study follows over 10,000 Moroccan adults for 10 years after a heart screening. Researchers will track heart attacks, strokes, and heart-related deaths to build a risk score tailored to the Moroccan population. The goal is to better predict and prevent heart disease in Moroc…

This study is building a biobank of blood and tissue samples from 500 patients undergoing cardiac surgery. Researchers will analyze these samples to better understand the causes and progression of heart disease. The goal is to improve future diagnosis and treatment, but no new th…

This study tracks 150 adults in cardiac rehab to see if men and women differ in how much they move during and up to 6 months after the program. Participants wear activity trackers and complete fitness tests at three visits over 10 months. The goal is to understand barriers to sta…

This study aims to see if voice recordings from a smartphone can help detect heart disease. Researchers will collect voice samples and health data from up to 1 million adults using the Mayo Clinic app. No treatment is given; the goal is to gather information for future AI tools.

This study uses artificial intelligence to analyze data from 21,000 patients who had heart valve procedures. The goal is to make AI tools that can predict surgery outcomes, like which device to use and risks of complications, with over 90% accuracy. This is a non-interventional s…

This registry will track 800 adults with valvular heart disease to see if women and men receive different diagnosis, treatment, and follow-up care. Researchers will compare how quickly each group gets guideline-recommended therapies and whether gender, age, or ethnicity affect ou…

This study looks at whether common blood tests for heart damage (troponin and CK-MB) match what an MRI shows after heart valve surgery. Researchers will enroll 100 adults having aortic or mitral valve surgery. The goal is to improve how heart attacks are diagnosed after surgery, …

This study is testing whether a smartwatch, combined with artificial intelligence and remote doctor check-ins, can help detect heart issues like atrial fibrillation and unstable angina earlier than usual. Researchers at the University of Sao Paulo will enroll 520 adults with hear…

This study is observing 900 adults in Greece who have both chronic obstructive pulmonary disease (COPD) and at least one heart condition. Researchers will track their health for two years, recording lung flare-ups, heart complications, hospital visits, and quality of life. The go…

This study is following 4,000 people with heart valve disease to look for new substances in the body (called metabolites) that might be linked to the disease. Researchers hope to find better ways to predict who will get worse and understand why. No new treatments are being tested…