Features of Stress (Takotsubo) Cardiomyopathy
- Transient hypokinesis, akinesis or dyskinesis of the left ventricular mid-segments with or without apical involvement
- The regional wall motion abnormalities extend beyond a single epicardial vascular distribution
- Absence of obstructive coronary disease* or angiographic evidence of acute plaque rupture
- New electrocardiographic abnormalities (either ST-segment elevation and/or T-wave inversion) and/or modest elevation in cardiac troponin
- Absence of phaeochromocytoma (Chapter 94) or myocarditis
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* May rarely coexist with obstructive coronary disease.