Microvascular Angina | Coronary Microvascular Dysfunction (CMD) | MedStar Health

Learn more about microvascular angina; new answers for unexplained chest pain.

Nearly 10 million Americans have angina pectoris, with approximately 500,000 new cases diagnosed each year. This condition is often a warning sign of worse troubles ahead—heart failure, stroke, myocardial infarction, and death. While many cases of angina have a common cause – blockage in the major coronary arteries, which can be treated by cardiac angioplasty or cardiac heart bypass surgery. However, a surprising number do not, leading to repeated testing, ineffective therapy, and, in the absence of a clear diagnosis and care plan, patient distress and dissatisfaction. The culprit is often microvascular angina or coronary microvascular dysfunction (CMD), sometimes called small artery disease or small vessel disease is a heart condition that affects the walls and inner lining of tiny coronary artery blood vessels that branch off from the larger coronary arteries. It is estimated that 50% of all angina cases can occur in patients who have CMD, and the majority of these patients are women.

What is microvascular angina?

Coronary microvascular dysfunction is a type of unexplained chest pain.

Microvascular Angina, also known as Coronary Microvascular Dysfunction (CMD), is a condition that affects the walls and inner lining of tiny coronary artery blood vessels that branch off from the larger coronary arteries.

Diagnosis

MedStar Heart & Vascular Institute is one of only a few programs in the nation to use the Coroventis CoroFlow™ Cardiovascular System: an advanced, software-based platform that, along with a special companion guidewire, can effectively measure the workings of the heart’s tiniest blood vessels—a feat beyond the capabilities of standard CT and coronary angiogram. This assessment is done during a coronary angiogram or cardiac catheterization procedure. Physicians now can correctly diagnosis and treat coronary microvascular dysfunction.

Treatment

After receiving this accurate diagnosis, patients are returned to their referring physician to make any adjustments to medications and for ongoing medical management.

Patient stories

Ask MHVI

Have questions for our heart and vascular program? Email us at AskMHVI@medstar.net.