What is nonobstructive coronary artery disease?

Heart disease: Non obstructive implies that there are changes seen from cholesterol deposits in the arteries, however, not sufficient enough to require stenting. Take action in lowering cholesterol, blood pressure, stop smoking, control diabetes, exercise, lose weight, before it becomes obstructive.

Atherosclerosis: The vessel wall has "rust" on the wall but there is still flow. As it further builds up it can become obstructive.