P697 Left ventricular non compaction highlighted by three-dimensional and speckle tracking echocardiography

Abstract

Abstract Introduction Left ventricular non-compaction (LVNC) is a relatively new cardiomyopathy, first reported by Chin et al. in 1990. Since then, much has been learned about this entity, but until now, there are some limitations for the diagnosis of this disease. Cardiac Magnetic Resonance Imaging is considered the gold standard for the diagnosis of LVNC, but echocardiography remains the first line imaging modality due to its availability and cost efficacy. Case report In this case, we report a case of an asymptomatic 21 years old young male with no personal or familiar history of cardiomyopathies. Two dimensional echocardiography (2D Echo) evidenced increased left ventricular trabeculation in the apical segments of lateral and anterior walls and a non compacted myocardium/ (compacted + non compacted myocardium) ratio of 0,33, compatible with LVNC according to Chin´s criteria. 3D Echo provided more detailed LV morphology analysis and 3D Echo Color Doppler evidenced ventricular flow within the intraventricular recesses. Strain analysis by speckle tracking (STE) evidenced global longitudinal strain = - 17% (Normal values < -18%), probably related to an incipient systolic dysfunction not evidenced by the evaluation of left ventricular ejection fraction by 2D Echo. Conclusions This case illustrates new echocardiographic modalities for LVNC diagnosis. 3D Echo and STE are new technologies that may play an incremental role in the evaluation of LVNC but need further investigation and validation. Abstract P697 Figure.