Background
Persistent left superior vena cava (PLSVC) is the most common thoracic venous anomaly, being present in 0.3-0.5% of the general population1. Most patients also have a right superior vena cava (RSVC), which is usually connected to the PLSVC via a left brachiocephalic vein2. However, in 18% of cases the VCSD is absent2. Patients with PLSVC are usually asymptomatic. The condition is generally discovered incidentally in imaging techniques, or during central venous cannulation procedures1,2.
Clinical experience on intracardiac device implantation in patients with PLSVC is scant and limited to isolated case reports3,4,5. In this paper, we present two cases of PLSVC with the absence of RSVC, wherein we performed intracardiac device implantation using a novel technique to introduce and place the leads into the right ventricle (RV).