Ischemia with No Obstructive Arteries (INOCA): A Review of the Prevalence, Diagnosis and Management.

Ischemia with no obstructive arteries (INOCA) is defined as patients with angiographic evidence of ischemia but no obstructive coronary artery disease (CAD) at coronary angiography. INOCA is estimated to be prevalent is 3-4 million individuals with a female predominance. INOCA is composed of different endotypes including: microvascular dysfunction, vasospasm and a combination of the 2.