Left ventricular non-compaction (LVNC) is a cardiomyopathy with altered ventricular wall anatomy. This condition is characterized by the presence of prominent left ventricular trabeculae, a thin compacted layer, and deep intertrabecular recesses that are continuous with the left ventricular cavity and separated from the epicardial coronary. Left ventricular non-compaction can present with acute heart failure, arrhythmias, or sudden cardiac death. We present a case of a common cardiac arrhythmia in the emergency department with a work up consistent with LVNC being the underlying etiology.
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