[Isolated left ventricular noncompaction causing refractory heart failure]. / Miocárdio não compactado isolado evoluindo para insuficiência cardíaca refratária.

Left ventricular noncompaction is a rare congenital anomaly characterized by excessive left ventricular trabeculation, deep intertrabecular recesses and a thin compacted layer due to the arrest of compaction of myocardial fibers during embryonic development. We report the case of a young patient with isolated left ventricular noncompaction, leading to refractory heart failure that required extracorporeal membrane oxygenation followed by emergency heart transplantation.