Late presentation of persistent left superior caval vein in a univentricular heart with successful transcutaneous occlusion using cera lifetech atrial septal occluder.

We present a case of persistent left superior caval vein in a univentricular heart presenting with progressive and disabling cyanosis in a 35-year-old man eighteen years after his Kawashima operation. The vein was successfully occluded using an atrial septal occluder with significant improvement of symptoms and oxygen saturation.