Tennessee Medicine E-Journal


Persistent left superior vena cava (PLSVC) draining into an unroofed coronary sinus is a rare congenital anomaly. It may go undiagnosed due to lack of specific signs and symptoms. We report a child with this condition who presented with persistent unexplained hypoxemia. Diagnosis was made by contrast echocardiography and was later confirmed by cardiac catheterization and angiography. A trans-catheter occlusion of the left superior vena cava was performed successfully with an Amplatzer vascular plug (St. Jude Medical, Inc., USA). His oxygen saturation returned to normal immediately after the procedure.