The Use of Coronary Sinus Reducer for Refractory Angina in the U.S.: A Case Series.

Chronic refractory angina remains a common and debilitating condition for millions of people, with up to 30% of patients experiencing persistent angina despite successful revascularization. We share our experience with the implantation of a coronary sinus reducer in two complex CAD patients with refractory angina despite multiple revascularization strategies and maximally tolerated medical therapy.