In Women With Symptoms of Cardiac Ischemia, Nonobstructive Coronary Arteries, and Microvascular Dysfunction, Angiotensin-Converting Enzyme Inhibition Is Associated With Improved Microvascular Function: A Double-Blind Randomized Study From the National Heart, Lung, and Blood Institute Women’s Ischemia Syndrome Evaluation (WISE)

Study Questions:

Does angiotensin-converting enzyme inhibition (ACE-I) improve coronary flow reserve (CFR) and angina symptoms among women with nonobstructive coronary artery disease (CAD)?