 Background of Left Ventricular Non-Compaction Cardiomyopathy Left Ventricular Non-Compaction Cardiomyopathy LVNC is a myocardial disorder defined by increased left ventricular LV trabeculation and intertrabecular recesses communicating with the LV cavity. The condition is associated with progressive heart failure, systemic thromboembolism and a predilection to fatal ventricular arrhythmia and sudden cardiac death. However, a large proportion of affected individuals may be asymptomatic. One cohort study demonstrated 28 of detected cases of LVNC were asymptomatic, with the majority being identified through family screening. It must be emphasized that currently there is no diagnostic tool, neither genetic nor imaging, that can categorically identify an individual as having LVNC or not. This lack of a gold standard makes the description of increased left ventricular trabeculation difficult, creating a tendency to apply a diagnostic label of LVNC inappropriately. 