Abstract
A 43-year-old woman experienced a drowning event during swimming. Basic and advanced cardiopulmonary resuscitation were successfully accomplished. During hospitalization, cardiac troponin I peak was 0.22 μg/L (normal, ≤0.13 μg/L) and creatine kinase isoenzyme MB mass peak was 7.6 U/L (normal, ≤3.5 U/L). Coronary angiography was unremarkable. Color Doppler transthoracic echocardiography showed moderate eccentric mitral regurgitation. On Day 5, the patient underwent cardiovascular magnetic resonance imaging. Cine image of left ventricular inflow/outflow (Data Supplement Movie I) showed eccentric mitral regurgitation caused by posterior papillary muscle dysfunction. …
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