myocardial disease without coronary involvement?

Question

non-coronary myocardial disease

Answer 1

This typically is referred to a condition called cardiomyopathy (pathology of the heart muscle). It can be affected by a virus or by high blood pressure, a valve or other things other than inadequate oxygenated blood supply to the heart muscle. The phrase you used might be one a cardiologist would use in describing heart disease after a patient has had a negative (no disease found) heart cath (aka angiogram).