Clinical characteristics of tako-tsubo cardiomyopathy

The American Journal of Cardiology
Venkatesan VidiRichard W Nesto

Abstract

Tako-tsubo cardiomyopathy (TTC) is increasingly diagnosed in the United States, especially in the Caucasian population. To evaluate the clinical features and outcome of patients with TTC, we evaluated 34 patients (32 women and 2 men) 22 to 88 years of age (mean 66 +/- 14) who fulfilled the following criteria: (1) akinesia or dyskinesia of the apical and/or midventricular segments of the left ventricle with regional wall motion abnormalities that extended beyond the distribution of a single epicardial vessel and (2) absence of obstructive coronary artery disease. Twenty-five patients (74%) presented with chest pain, 20 patients (59%) presented with dyspnea, and 8 patients (24%) presented with cardiogenic shock. Twenty-two patients (65%) had ST-segment elevation and 14 patients (41%) had T-wave inversion on presentation. Twenty-five patients (74%) reported a preceding stressful event. Cardiac biomarkers were often mildly increased, with a mean troponin I (peak) of 13.9 +/- 24. Mean +/- SD left ventricular ejection fractions were 28 +/- 10% at time of presentation and 51 +/- 14 at time of follow-up (p <0.0001). Two patients (6%) died during the hospital stay. Average duration of hospital stay was 6.6 +/- 6.2 days. In conclusion, T...Continue Reading

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