Angioplasty, Balloon

The purpose of this study is to evaluate long-term effectiveness and safety of patients with coronary disease treated with drug eluting balloon in real world practice.

By assessing the safety and durability of an endovascular intervention, this study will justify and inform the design of a subsequent seamless feasibility/pivotal trial aimed at the treatment of intracranial atherosclerotic stenosis (ICAS), an entity which carries a high risk of stroke despite existing medical therapies, and has no other treatment options. Given the global burden of ICAS as a leading cause of stroke, there is a high potential for public health impact not just in the U.S., but world-wide.

The purpose of this clinical trial is to compare the efficacy and safety of cutting balloons versus drug-coated balloons in treating venous stenosis of autologous arteriovenous fistulas.The main questions it aims to answer are: 1. Will drug-coated balloons achieve a better CD-TLR rate compared to cutting balloons? 2. What medical problems do participants have when receiving treatment with drug-coated balloons or cutting balloons?