Invasive coronary physiology clinical trials

Coronary Sinus Reducer Implantation in Patients With Ischaemia and Non-obstructed Coronary Arteries and Coronary Microvascular Dysfunction.

This study looks at a new device called a Coronary Sinus Reducer for people with chest pain (angina) caused by problems with very small heart blood vessels. It checks if the device is safe and helps improve blood flow to the heart.