Whether you called it apical ballooning syndrome or takotsubo cardiomyopathy, it is due to coronary artery spasm with or without underlying atherosclerosis.
Cheng
Tsung O
TO
D000004:Abbreviations as Topic; D003324:Coronary Artery Disease / Q000150:complications*; D003329:Coronary Vasospasm / Q000150:complications*; D006801:Humans; D012307:Risk Factors; D054549:Takotsubo Cardiomyopathy / Q000209:etiology*; D009626:Terminology as Topic