Double Outlet Left Ventricle with Intact Ventricular Septum: A Rare Prenatally Diagnosed Case Report.

Introduction: Double outlet left ventricle (DOLV) is a rare congenital heart anomaly, and cases of DOLV with an intact ventricular septum are uncommon. To date, only four such cases have been reported in the medical literature.

Case presentation: This report presents a case of prenatally diagnosed DOLV. A fetal echocardiogram at 21 weeks of gestation demonstrated both great arteries, aorta and pulmonary artery, arising from the left ventricle with severely dysplastic tricuspid valve and severe hypoplasia of the right ventricle. Subsequent echocardiograms demonstrated no ventricular septal defect. The patient required balloon atrial septostomy in the first week of life, underwent pulmonary artery banding at 5 weeks of life, and is currently status post-bidirectional Glenn, and is awaiting final Fontan palliation.

Conclusion: Prenatal diagnosis aided in predicting and guiding postnatal management.