Paroxysmal atrial fibrillation

This study tests a device that freezes small areas of heart tissue to treat paroxysmal atrial fibrillation (AFib), a condition where the heart beats irregularly. About 200 people with AFib that hasn't responded to medication will receive the procedure. Researchers will track safe…

This study explores whether combining a high-protein Mediterranean diet with resistance exercise can help people with heart disease build muscle and lower their risk of future heart problems. The trial enrolls adults who have completed cardiac rehab and may have low muscle mass w…

This study tests whether a three-month smartphone-supported walking program can improve daily step counts, psychological well-being, and body composition in adults with cardiovascular disease or type 2 diabetes. Participants use the Walk15 app to set personalized step goals and t…

This study tested a coaching program called MACRO-I for adults aged 70 and older who had a heart event. The program used coaches to guide patients through starting cardiac rehab, either at a center, at home, or a mix of both. 416 participants were split into the coaching group or…

This completed study tested a new catheter and generator system designed to treat paroxysmal atrial fibrillation (AFib) — a common heart rhythm problem. The device uses pulsed field ablation (PFA) to target and destroy tiny areas of heart tissue causing the irregular rhythm. 188 …

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 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 study looked at whether Vidaza, a drug used for acute leukemia, could also help treat atrial fibrillation (an irregular heartbeat). The idea was that Vidaza might reverse certain DNA changes that lower the activity of a gene important for heart function. Only one person took…

This study tested a once-daily pill called orforglipron against insulin glargine in nearly 2,750 adults with type 2 diabetes, obesity or overweight, and increased cardiovascular risk. The main goal was to see if orforglipron could reduce major heart events like heart attacks or s…

This study compared two ways to treat paroxysmal atrial fibrillation (AFib) — a heart rhythm problem. One method uses a freezing balloon (cryoballoon), the other uses heat (radiofrequency). About 769 patients took part. The goal was to see if the freezing method works as well and…

This study tested two ways of managing breathing during heart bypass surgery to see which better prevents lung complications. Over 1,500 adults having planned heart surgery were randomly assigned to either no breathing support or gentle, low-volume breaths while on the heart-lung…

This study tested a systematic 12-step workflow for a newer type of heart ablation (pulsed-field ablation) in 118 adults with atrial fibrillation. The goal was to see if this approach could better isolate the pulmonary veins and reduce the chance of the heart rhythm problem retur…

This study tested a new device called the OMNYPULSE catheter with the TRUPULSE generator to treat paroxysmal atrial fibrillation (a type of irregular heartbeat). The goal was to see if it is safe and effective at isolating the veins that carry blood from the lungs to the heart. 1…

This study tested whether permanent pacemakers can be safely implanted using only ultrasound (transthoracic echocardiography) instead of traditional X-ray guidance. Thirty-one adults with arrhythmias who needed a pacemaker took part. The goal was to see if the procedure could be …

This study tested whether a single dose of dantrolene, a muscle relaxant, could reduce the risk of dangerous heart rhythms in 68 people with structural heart disease who were scheduled for a procedure to treat ventricular tachycardia. Participants received either dantrolene or a …

This study tested a new device that uses short electrical pulses to treat a type of irregular heartbeat called paroxysmal atrial fibrillation. Ten patients received the procedure to see if it was safe and could stop the heart rhythm problem for at least 12 months. The goal was to…

This study followed 364 people with paroxysmal atrial fibrillation (a type of irregular heartbeat) who had already received ablation treatment in a previous trial. Researchers compared a newer pulsed field ablation system with traditional thermal ablation to see how well each met…

This study tested whether intensive dental cleaning and oral hygiene advice can improve gum health and also affect markers of heart disease and type 2 diabetes. About 200 adults with gum disease and either heart disease or diabetes (or prediabetes) took part. Researchers measured…

This small completed study looked at a blood filtering procedure called double-filtration plasmapheresis (DFPP) in 5 kidney dialysis patients with very high levels of lipoprotein(a), a fatty substance linked to heart disease and blood clots. The goal was to see if DFPP could lowe…

This study tested a new system that uses electrical pulses to treat a type of irregular heartbeat called paroxysmal atrial fibrillation (AF). The system includes a special catheter and generator designed to safely and effectively stop the faulty signals causing the condition. 150…

This study tested a new type of catheter (a thin tube) that uses heat to destroy tiny areas of heart tissue causing irregular heartbeats in people with paroxysmal atrial fibrillation (AFib). The catheter has a cooling system to prevent overheating. The trial involved 415 particip…

This study tested a voltage-guided stepwise ablation strategy against the standard circumferential approach for treating atrial fibrillation. 130 adults with AF undergoing their first catheter ablation were randomly assigned to one of the two methods. The goal was to see if the s…

This study tested a special catheter system to treat people with a type of irregular heartbeat called paroxysmal atrial fibrillation (PAF) that didn't get better with medication. The treatment uses heat energy to isolate the veins that trigger the abnormal rhythm. The study inclu…

This study looked at whether using a CPAP machine at night can reduce episodes of atrial fibrillation (a type of irregular heartbeat) in people who also have obstructive sleep apnea. Twenty-five adults with both conditions were enrolled. Half used CPAP while the other half were o…

This study tested whether a drug called alirocumab, which lowers cholesterol, can reduce heart disease risk in people with HIV. The trial involved 118 adults aged 40 and older with well-controlled HIV and high heart disease risk. Participants received either alirocumab or a place…

This study tested a new device that uses electrical pulses to treat a type of irregular heartbeat called paroxysmal atrial fibrillation. 142 people who had not been helped by standard medications took part. The goal was to see if the procedure could keep their heart rhythm normal…

This completed trial looked at whether taking two cholesterol-lowering drugs (rosuvastatin and ezetimibe) is more effective and safer than taking just one (rosuvastatin) for people with heart disease. 66 adults with high cholesterol were randomly assigned to one of the two treatm…

This study tested whether using cardiac MRI to guide ablation (a procedure that destroys small areas of heart tissue) can improve outcomes for people with ventricular tachycardia, a dangerous fast heart rhythm. 104 adults with structural heart disease were randomly assigned to on…

This study tested a new tool called VISITAG that helps doctors track where they apply heat during a heart procedure for atrial fibrillation (AFib). The goal was to see if it makes the procedure safer and more effective at preventing irregular heartbeats for a year. 200 adults hav…

This study tested a special catheter and generator system to treat people with paroxysmal atrial fibrillation (AFib), a condition where the heart beats irregularly. The goal was to safely isolate the veins that trigger AFib and restore normal rhythm. 135 participants were treated…

This study tested a new type of wire (lead) for implantable heart devices that deliver shocks to stop dangerous fast heart rhythms. Researchers checked how safe and effective the lead was in 998 people who needed a defibrillator or heart failure device. The lead was placed in a s…

This study looked at how safe and effective a freezing treatment (cryoablation) is for people with a type of irregular heartbeat called paroxysmal atrial fibrillation (AFib). The treatment uses a device called POLARx to freeze heart tissue and stop the faulty signals causing AFib…

This study looked at whether giving ulinastatin during heart surgery can lower the chance of lung complications like infections or breathing failure. Researchers analyzed data from over 4,500 patients and also used computer models to understand how the drug works. The results sug…

This study looked at 320 adults with paroxysmal atrial fibrillation (a type of irregular heartbeat) to compare two cryoballoon ablation techniques: freezing only the pulmonary veins versus freezing both the veins and the back wall of the heart's left upper chamber. The goal was t…

This phase 3 trial tested a special balloon catheter that uses radiofrequency energy to destroy tiny areas of heart tissue causing irregular heartbeats in people with symptomatic paroxysmal atrial fibrillation. The study enrolled 397 adults who had not responded to medication. Th…

This study tested whether sending mild electrical pulses just under the skin could help control heart rate in people with atrial fibrillation (AFib). 46 adults with symptomatic paroxysmal AFib who didn't respond to standard drugs were given a device implant. For two weeks, some r…

This study tested two non-thermal ablation systems in 100 people with paroxysmal atrial fibrillation to see which works better and is safer. Patients were randomly assigned to one of the two devices, and their heart rhythms were monitored for a year. The goal was to find out whic…

This study tested a new mapping feature (FARAVIEW™) used with a pulsed field ablation catheter (FARAWAVE NAV™) to treat atrial fibrillation. Fifty patients with symptomatic AFib that didn't respond to medication were included. The goal was to see how well doctors could isolate th…

This study looked at whether a special eye scan (SS-OCTA) can detect signs of cardiovascular disease. Researchers compared retinal blood vessel changes to results from a standard carotid ultrasound in 42 adults. The goal was to see if the eye scan could predict the presence or se…

This study tested whether an AI-powered smart stethoscope can accurately detect structural heart disease in over 6,600 students aged 10-18 in China. Trained staff used the device to listen to heart sounds, and the AI flagged potential issues. Students with positive results, plus …

This study tested a new non-invasive tool called ECG-Imaging that uses many electrodes on the body to create a 3D map of the heart's electrical activity. The goal was to see if it can more accurately locate the source of heart rhythm problems compared to a standard ECG. 362 parti…

This study tested a new contrast agent called NH002 in 36 adults with heart disease. The agent is used during heart ultrasound to make the heart's chambers and borders clearer. The main goal was to check safety by monitoring vital signs, heart activity, and allergic reactions aft…

This study looked at how often older adults with heart disease risk factors should exercise to improve fitness and blood pressure. Twenty-two participants did combined training either twice or three times a week for 12 weeks. The goal was to see which frequency worked better for …

This study tested an 8-week digital lifestyle program called MYCardio-PEER for low-income adults at risk of heart disease. Participants received weekly videos and infographics on healthy eating and exercise, plus group chats with peer leaders. The goal was to see if the program i…

This study looked at whether a home-based physical activity program and computer-based cognitive training could help prevent memory loss in older women with heart disease. 253 women aged 65 and older participated. The goal was to see if these lifestyle changes could improve memor…

This completed study tested whether sending behavioral nudges through Denmark's official electronic letter system could increase flu vaccination among adults aged 18-64 with chronic diseases. Over 300,000 participants were randomly assigned to receive different types of letters o…

This study looked at two methods to reduce pain after heart surgery through a cut in the chest bone. 120 adults received either a nerve block near the breastbone, pain medicine injected into the wound, or standard painkillers. Researchers measured pain levels using a saliva test …

This completed trial tested an 8-week program called Healing Hearts Together (HHT) for couples where one partner has heart disease. 474 couples attended weekly group sessions focused on communication, emotional support, and heart health. The goal was to see if the program improve…

This study tested whether a 20-minute session of nurse-led spiritual care, including prayer and relaxation techniques, could help heart surgery patients feel less anxious and have more stable blood pressure and heart rate before their operation. 248 adults in Indonesia took part.…

This study looked at whether a 12-week virtual exercise program could help women with cardiac implantable electronic devices (CIEDs) improve their physical fitness, quality of life, and mental health. Twenty women took part, doing either high-intensity interval training (HIIT) or…

This study tested whether a 3-month yoga program could improve physical and mental health in adults over 65 who had recently finished cardiac rehab. Participants attended yoga twice a week. Researchers measured balance, muscle strength, anxiety, and mood. The goal was to see if y…

This study tested whether showing patients with atrial fibrillation (AF) simple visual charts of common post-ablation symptoms could help them decide more confidently about undergoing the procedure. 75 adults with symptomatic AF who were considering catheter ablation used these d…

This study tested whether adding a tramadol injection to a continuous local anesthetic (levobupivacaine) delivered through a wound catheter can reduce the need for morphine after heart surgery via sternotomy. 160 adults undergoing various heart surgeries were enrolled. The goal w…

This study tested a breathing exercise called the active cycle breathing technique in 120 adults who had just had heart surgery. The exercise combines controlled breathing, deep breaths, and huffing or coughing to help clear the lungs and improve breathing. Researchers measured w…

This study tested a 9-week internet-based cognitive behavioral therapy (CBT) program designed to reduce stress, anxiety, and depression in people with stable heart disease. 215 adults with heart disease and elevated stress or mood symptoms took part. The program was personalized …

This study tested whether adding virtual reality (VR) driving simulations to standard cardiac rehabilitation helps heart surgery patients feel less anxious and depressed. Sixty adults recovering from heart surgery took part. The results suggest VR can improve emotional well-being…

This study explored how family members share health information about genetic diseases like sickle cell, diabetes, and cancer. Over 1,000 adults completed surveys or interviews about their family health history and support. The goal was to understand social and relational factors…

This pilot study looked at whether it's possible to run a larger trial comparing two types of exercise—moderate steady exercise and high-intensity interval training—on symptoms of atrial fibrillation (AF), a common heart rhythm problem. Researchers enrolled 25 men and women with …

This pilot study tested whether giving inhaled nitric oxide gas during laparoscopic surgery could protect blood vessels and organs in 40 adults with heart disease. Half received the gas through their breathing tube during surgery, and half received standard care. Researchers meas…

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 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 looked at whether a special mapping tool called vMap can help doctors perform heart ablations more efficiently for people with irregular heartbeats (arrhythmias). Researchers tracked 112 patients to see if using vMap reduced procedure time and improved success rates. T…

This study checked how well over 5,000 heart patients follow their prescribed medicine routine. Researchers asked patients about their medication habits and any side effects. The goal was to understand how many patients do not take their medicines as directed.

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 aimed to make heart rate monitors more accurate for people with heart conditions. Researchers collected data from 138 participants, including cardiac patients and athletes, using Fitbit and Polar devices over 13 weeks. The goal was to remove false readings and develop …

This study tested a program where doctors refer inactive people with chronic diseases (like diabetes, heart disease, or obesity) to an exercise professional for personalized counseling. The goal was to see if this referral scheme helps people become more active compared to just g…

This study checked whether the Turkish version of the Cardiac Depression Scale (CDS) works well for people with heart disease. Researchers tested 360 Turkish adults with various heart conditions to see if the scale accurately measures depression. The goal is to give doctors a rel…

This completed study looked at 400 people with both heart disease and a mental health condition (like depression or anxiety). Researchers used questionnaires, blood tests, and imaging to find shared risk factors and biological markers. The goal was to better understand how these …

This study compared two heart-mapping systems, RHYTHMIA and CARTO, in 49 adults undergoing a repeat procedure for atrial fibrillation (AF). The goal was to see which system better finds gaps from previous ablations. The study did not test a new treatment but aimed to improve unde…

This study looked at whether wearing an activity monitor (like a Fitbit) after heart surgery helps patients get moving sooner and return to their normal activity levels faster. Researchers tracked motivation, length of hospital stay, and readmission rates in 12 adults who had car…

This completed registry study followed over 5,000 people with heart rhythm disorders who received Abbott devices during standard procedures. The goal was to collect real-world data on safety and how well the devices work. No new treatments were tested; instead, the study observed…

This completed study looked at how the heart medication amiodarone behaves in children aged 0 to 18 with heart rhythm disorders. Researchers took blood samples from 57 children to measure drug levels and understand how the body processes it. The goal was to find the best dose for…

This study tested whether special communication training for pharmacists and general practitioners helps them involve older patients in decisions to stop or lower medications for heart disease and diabetes. Researchers enrolled 310 patients aged 75 and older who were taking certa…

This study tested whether a theory-based motivational letter mailed six months in advance could increase attendance at a one-year post-cardiac rehabilitation check-up. Researchers compared 102 adults who received the letter to those who got usual care. The goal was to see if a si…

This study looked at how Chinese Americans talk about advance care planning—decisions about end-of-life care—with their families. Researchers interviewed religious leaders, patients with chronic diseases, and family caregivers in Chicago to understand their needs and readiness. T…

This study looked at how well a daily low-dose aspirin works in people who have both immune thrombocytopenia (low platelets) and heart disease. Only 4 adults took part. Researchers measured platelet function after aspirin to see if the standard dose is enough to prevent blood clo…

This study tested whether a systematic phone call from a medical student, supervised by a general practitioner, could reduce hospitalizations in patients with chronic heart or mental health conditions during the COVID-19 lockdown in France. Over 22,000 patients aged 70 and older …

This study looked at 320 adults who had heart surgery to see how well two different risk scores (EuroSCORE-II and POSPOM) predict the chance of dying in the hospital. Researchers calculated each patient's scores before surgery and compared them to what actually happened. The goal…

This study looked at whether orienteering (a navigation-based walk) is as good as regular walking for heart rehab. 40 people with stable heart disease took part. Researchers measured heart rate and enjoyment during both activities. The goal was to see if orienteering could be a f…

This study looked at whether a 6-minute stepper test (ST6) can accurately measure exercise tolerance in people with heart conditions undergoing rehabilitation. Researchers compared the stepper test results with the standard 6-minute walk test and a cardiac stress test in 60 patie…

This study looked at 116 people with paroxysmal atrial fibrillation (AFib) who were scheduled for a heart ablation procedure. Researchers measured baroreflex sensitivity—a non-invasive test of the autonomic nervous system—before the procedure. They wanted to see if this measureme…

This study used a special brain imaging technique called near-infrared spectroscopy to see how the brain responds to pain and sounds while people are under general anesthesia. 44 healthy volunteers aged 12-30 were given either a painkiller (remifentanil) or a placebo. The goal wa…

This study tested a larger 31 mm cryoballoon in 20 patients with paroxysmal atrial fibrillation to see how much heart tissue it could freeze. Researchers used 3D maps before and after the procedure to measure the size of the treated area. The goal was to gather data to improve fu…

This study looked at how many girls and young women aged 11 to 20 with chronic diseases (like diabetes or immune conditions) got the HPV vaccine, compared to those without chronic illness. Researchers reviewed records of 223 participants from a hospital in France. The goal was to…

This study tested an indoor air pollution intervention called AIRWISE in 20 adults aged 55 and older with heart disease. Participants received personal air cleaners, a color-changing air quality monitor, and educational materials. The goal was to see if they would use these tools…

This completed study tested whether healthcare claims data can predict the results of a major heart trial (SURPASS-CVOT) comparing two diabetes drugs, tirzepatide and dulaglutide. Researchers analyzed records from over 44,000 people with type 2 diabetes and heart disease to see i…

This study looked at two ways to assign care coordinators to older adults (65+) with heart disease or risk factors. One method used patients' own reports of difficulty coordinating care, while the other used usual triggers like hospital discharge. The goal was to see which approa…