Coronary restenosis

This trial tests a new device called the Angimis Atherectomy System, which uses laser energy to break up plaque in coronary arteries that are too narrow or hardened for standard balloon or stent procedures. The study enrolls adults with coronary artery disease who have at least o…

This study tests whether drinking a specially designed milk every day for a year can reduce the chance of stents narrowing again and prevent further heart problems in people who have had a first heart attack. About 140 adults who recently had a stent placed will be randomly assig…

This study reviews medical records of 252 patients who received a drug-coated balloon to treat blocked heart arteries. The goal is to see how safe and effective the balloon is over two years. Researchers will track heart-related deaths, heart attacks, and the need for repeat proc…

This study compares two ways of preparing a re-narrowed heart artery before using a drug-coated balloon to open it. In 500 adults with in-stent restenosis, half will get standard balloon prep and half will get a more aggressive prep with special cutting or scoring balloons. The g…

This study tests whether using a laser to clear re-narrowed heart stents works better than standard balloon treatment. About 1,260 adults with drug-eluting stent restenosis will be enrolled. The goal is to see if laser-assisted angioplasty reduces heart-related deaths, heart atta…

This observational study will track 87 people who are already scheduled to receive treatment with the Recana Thrombectomy Catheter System for blocked veins in their legs. The goal is to see how safe the device is and how well it works at clearing the blockages during the procedur…

This study aims to understand why some people's coronary artery disease gets worse quickly while others' stays stable. Researchers will compare medical history, lab results, and imaging from 52 patients—34 with rapidly progressive disease and 18 with non-rapidly progressive disea…

This study will compare how well heart and lung function recover after robot-assisted heart surgery versus traditional open-heart surgery. Researchers will measure exercise capacity and breathing in 80 patients before and after surgery. The goal is to see if the less invasive rob…