Definitions
coronary stenosis, NSTEMI, obstructive coronary artery disease
CORONARY STENOSIS, STENOSES
The final diagnosis of MI together with the presence of ST‐segment–elevation MI (STEMI) or non–ST‐segment–elevation MI (NSTEMI) was determined at discharge by the investigators at each trial site. There was no formal adjudication of the index diagnoses. Patients were deemed to have MINOCA when diagnosed as MI but without a significant (ie, <50%) coronary stenosis in any vessel at coronary angiography and without coronary revascularization before or during the index hospitalization. The reason for excluding patients with prior revascularization from the cohort with MINOCA was to dismiss patients with previous manifest obstructive coronary artery disease. Patients with MI with a significant (ie, ≥50%) coronary stenosis at coronary angiography in at least 1 vessel were considered as having MI‐CAD. A small number of patients classified as having nonobstructive stenoses underwent coronary revascularization, although percutaneous coronary intervention of MINOCA lesions is not encouraged in the consensus documents on MINOCA of the European Society of Cardiology