Day 0 (admission date)	A 65-year-old male patient presents with an anaphylactic cardiovascular collapse, successfully treated by IV corticosteroids, anti-histamines and fluids.
Day 1	He develops a severe epigastric pain attributed to ST-segment elevation myocardial infarction in the inferior electrocardiogram leads.
Within 4 h	Transfer to specialized cardiac catheterization centre. Coronary angiography shows a significant stenosis of hypoplastic right coronary artery and an uncertain culprit distal occlusion on the left posterior descending artery. Ventriculogram reveals an akinesia of the infero-median wall.
Day 2	Enhanced cardiac magnetic resonance imaging shows an acute transmural myocardial necrosis on the infero-median segment and an acute sub-endocardial necrosis on the infero-septo-basal segment. Diagnosis of Type II Kounis syndrome treated with dual antiplatelets, statins, amlodipine, and avoiding beta-blockers.
3 months after hospital discharge	Asymptomatic patient with good clinical performance for daily activities.