SEVERE AORTIC STENOSIS

This study compares aspirin and clopidogrel to prevent leaflet thrombosis (blood clots on the valve) in 254 people who had a transcatheter aortic valve replacement (TAVR) for severe aortic stenosis. After 4 weeks of both drugs, participants take either aspirin or clopidogrel alon…

This study compares a new heart valve, the DurAVR®, to standard TAVR valves in up to 1650 people with severe aortic stenosis. The valve is designed to mimic natural blood flow. Participants are randomly assigned to get the new valve or a standard one and are followed for up to 10…

This study is testing the Navitor heart valve, a device used to replace a narrowed aortic valve without open-heart surgery. It will include 100 people in Japan with severe aortic stenosis. Researchers will check how many patients die within 30 days and whether the valve leaks aft…

This study tests whether a special heart scan called CT-FFR can help doctors make better decisions about treating blocked arteries before valve replacement surgery. 300 patients with severe aortic stenosis will be randomly assigned to have their treatment guided by either standar…

This study is testing the RENATUS transcatheter aortic valve in 800 people with severe aortic stenosis, a condition where the heart's aortic valve narrows and makes it hard to pump blood. The valve is implanted through a catheter, avoiding open-heart surgery. Researchers are trac…

This study looks at people with severe aortic stenosis who need a new heart valve (TAVI). Normally, doctors do a coronary angiogram first to check for blocked arteries. But this test can cause kidney damage or bleeding, especially in older patients. The trial will compare the usu…

This study tests whether using a heart-lung machine (ECMO) before a high-risk aortic valve replacement can prevent death, cardiac arrest, or emergency surgery. It includes 30 adults with severe aortic stenosis who are unstable or have complex anatomy. Participants receive ECMO su…

This study tests whether using one stitch device (Perclose) is as safe and effective as using two to close the leg artery after a minimally invasive heart valve replacement (TAVR) in people with severe aortic stenosis. About 876 participants will be randomly assigned to one of th…

This study tests whether artificial intelligence can analyze standard ultrasound images of the heart to measure calcium buildup on the aortic valve. If accurate, this could help doctors diagnose severe aortic stenosis without the extra cost and radiation of a CT scan. The study w…

This study tests whether wearing a portable ECG monitor for 30 days after a heart valve replacement (TAVI) can detect dangerous heart rhythm problems better than the usual 1-2 days of hospital monitoring. 250 patients will be randomly assigned to either the extended monitoring gr…

This study compares two sedation approaches during a minimally invasive heart valve replacement (TAVI) in 80 elderly patients. One group receives dexmedetomidine, a sedative that may cause less breathing depression, while the other gets standard propofol-remifentanil. Researchers…

This study is a registry that collects information from routine care to see how well minimally invasive heart valve procedures work over 5 years. It includes adults over 18 who have had a transcatheter aortic valve replacement or similar treatment. No new treatments are given; th…

This study looks at two ways to check for blocked heart arteries in people with severe aortic stenosis who are getting a new heart valve (TAVI). One method is the usual invasive X-ray test; the other uses non-invasive risk management. The goal is to see which approach leads to be…