Table 2.

Causes of MI without atherothrombotic coronary artery disease

Fixed coronary atherosclerotic plaques	In combination with non-coronary causes of oxygen demand-supply imbalance
Non-atherosclerotic coronary artery disease	Spasm/SVD, vasculitis, dissection, embolism, congenital anomalies, fibromuscular dysplasia, iatrogenic (stent or graft restenosis), PCI-related no-reflow
Non-coronary cardiac oxygen demand-supply imbalance	Sustained tachyarrhythmias, bradyarrhythmias, LV hypertrophy and/or dilatation
Extra cardiac oxygen demand-supply imbalance	Respiratory failure, severe anaemia, hypovolemic shock