Toni Braxton Diagnosed With Coronary Microvascular Angina

Toni Braxton is diagnosed with coronary microvascular angina. The diseases starves parts of her boy of oxygenated blood and causes breathing problems. However, despite her microvascular angina she is joining and competing in the coming season of Dancing with the Stars, writes E! Online.

The Medical University of South Carolina describes Microvascular Angina (also known as Syndrome X) as a condition that occurs when the patient experiences chest pain but has no apparent coronary artery blockage. "This condition results from poor functioning of the tiny blood vessels that nourish the heart, arms and legs(8). Microvascular angina can occur during exercise or at rest. Reduced vasodilator capacity of the coronary microvessels is thought to be a cause of angina during exercise, but the mechanism of angina at rest is not known. Coronary microvascular spasm and resultant myocardial ischemia may be the cause of chest pain in a subgroup of patients with microvascular angina."