Implantation Of Pacemaker In Patients With Persistent Left Superior Vena Cava (PLSVC) And Absent Right Superior Vena Cava (RSVC)

Objective:Assess the implantation way of pacing lead in patients with persistent left superior vena cava with (without) absent right superior vena cava.Methods:Five patients were confirmed PLSVC during pacemaker implantation. And three of them combination with absent RSVC. Three of them suffered from sick sinus syndrome (SSS) and the other two patients were from atrioventricular block. For four of these cases, a right subclavian approach was used to accomplish the pacing lead in the right atrium and right ventricle. The other case, left subclavian approach was selected, with the lead fixed in the right atrium and the right ventricle.Results:All the five patients were followed up for 1 month to 34 months. The pacing and sensing functions were normal in all patients.Conclusion:By chosen of the appropriately transvenous approach, through careful manipulation, the lead may usually be inserted into the appropriate place via PLSVC.