What is takotsubo cardiomyopathy?

Apical ballooning syndrome (stress-induced cardiomyopathy) occurs in older women after emotional/ physical distress. From intense sympathetic activation with heterogeneity of myocardial autonomic innervation diffuse microvascular spasm and catecholamine toxicity. On ECG: ST elevation, deep T wave, patho Q wave before hospitalization, prolonged QT, prolonged PR