<unk>  is defined as an<unk>  cessation of<unk>  flow to TIMI grade 0 or 1 flow before or at ≤5 mm distal to the lesion in an artery in which PTCA was attempted where there had previously been TIMI grade 2 or 3 flow prior to the procedure. It occurs primarily due to acute<unk>  dissection, thrombosis, or, most often, a combination of both during<unk><unk> .
Abrupt closure during coronary intervention
Intraprocedural thrombotic events
Atrial fibrillation in acute coronary syndromes
Nonvalvular cardiovascular device-related infections
Patent foramen ovale post-surgical complications
Atrial fibrillation anticoagulation
Post-infarction conduction abnormalities
Runaway pacemaker syndrome