Abstract
heart failure; however, recovery of cardiac function is often complete within the first week following the insult. Cardiac enzymes may be mildly elevated, but on cardiac catheterization there is usually no evidence of coronary artery disease, or only "mild luminal irregularities" may be noted (7). Contraction band necrosis may be seen on biopsy in the more serious cases. The cause of takotsubo cardiomyopathy is unknown, but several mechanisms have been suggested, including ischemia from coronary artery spasm, microvascular spasm, and direct myocyte injury (5).
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