Kelan Zha1,2, Kaijun Cui2, Xingbin Liu2, Yuan Fang2. 1. Department of Cardiology, West China School of Medicine, Sichuan University, Chengdu, China. 2. Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China.
Abstract
BACKGROUND: Although transvenous right ventricular (RV) endocardial lead placement is routine practice in clinical pacing, RV inaccessibility in certain clinical situations mandates the search for other sites. HYPOTHESIS: This study is aimed to verify whether left ventricular lead through coronary sinus is safe and efficient. METHODS: Based on a retrospective analysis of a single-center series of 4 patients with inaccessibility for RV pacing, we report on the feasibility and reliability of coronary sinus (CS) pacing via left ventricular (LV) lead, which usually is used in cardiac resynchronization therapy. Four patients with valvular heart disease and bradycardias post-mechanical prosthetic tricuspid valve replacement were studied. The LV leads were implanted into the lateral vein or great cardiac vein of the CS, and all parameters were programmed postprocedure. RESULTS: In all cases procedures yielded favorable parameters, with 1 CS dissection. At long-term follow-up, there was no threshold increase or lead dislocation. CONCLUSIONS: LV lead implantation through the CS appears safe and efficacious in patients with inaccessibility for RV pacing.
BACKGROUND: Although transvenous right ventricular (RV) endocardial lead placement is routine practice in clinical pacing, RV inaccessibility in certain clinical situations mandates the search for other sites. HYPOTHESIS: This study is aimed to verify whether left ventricular lead through coronary sinus is safe and efficient. METHODS: Based on a retrospective analysis of a single-center series of 4 patients with inaccessibility for RV pacing, we report on the feasibility and reliability of coronary sinus (CS) pacing via left ventricular (LV) lead, which usually is used in cardiac resynchronization therapy. Four patients with valvular heart disease and bradycardias post-mechanical prosthetic tricuspid valve replacement were studied. The LV leads were implanted into the lateral vein or great cardiac vein of the CS, and all parameters were programmed postprocedure. RESULTS: In all cases procedures yielded favorable parameters, with 1 CS dissection. At long-term follow-up, there was no threshold increase or lead dislocation. CONCLUSIONS: LV lead implantation through the CS appears safe and efficacious in patients with inaccessibility for RV pacing.
Authors: Amine Mazine; Denis Bouchard; Emmanuel Moss; Guillaume Marquis-Gravel; Louis P Perrault; Philippe Demers; Michel Carrier; Raymond Cartier; Michel Pellerin Journal: Ann Thorac Surg Date: 2013-07-16 Impact factor: 4.330
Authors: Anna Polewczyk; Andrzej Kutarski; Andrzej Tomaszewski; Wojciech Brzozowski; Marek Czajkowski; Maciej Polewczyk; Marianna Janion Journal: Cardiol J Date: 2013 Impact factor: 2.737