[Pacing sites and modes in cardiac resynchronization therapy].
There are many differences between cardiac resynchronization therapy (CRT) and conventional pacing therapy in terms of indications and implant techniques. Generally speaking, CRT requires implanting 3 pacing leads in heart failure patients with ventricular dysynchrony. A left ventricular lead is implanted via intravenous coronary sinus. The pacing site of left ventricle has important influence on therapy response. Sometimes open chest implant or other pacing modes are adopted to compensate the anatomical limitation of coronary sinus and its branches. In addition, the pacing sites and modes of right atrium and right ventricle are also under research to further improve CRT response.
Geng
Jun-Chao
JC
Department of Cardiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China.
Zhu
Jian-Hua
JH
D002304:Cardiac Pacing, Artificial / Q000379:methods*; D004567:Electrodes, Implanted; D006325:Heart Atria; D006333:Heart Failure / Q000503:physiopathology / Q000628:therapy*; D006352:Heart Ventricles; D006801:Humans; D018487:Ventricular Dysfunction, Left / Q000503:physiopathology; D018497:Ventricular Dysfunction, Right / Q000503:physiopathology