What are markers for microvascular angina in hypertensive patients?

The company it keeps: There are no "markers" for microvascular angina, per se. The diagnosis can be made invasively at specialized centers (only a few around the country), but often is based on a "gestalt" of suggestive symptoms, sometimes with evidence of impaired blood flow ("ischemia") on stress tests, in a person with traditional heart disease risk factor, when typical angiograms show no blockages.

Angiogram diagnosis: Angina occurring without demonstrable narrowings of the larger coronary arteries on the surface of the heart. Can be definitively diagnosed only with a coronary angiogram.