Efficacy of cardiac resynchronization therapy-defibrillator for treating patients with chronic heart disease.
- Author:
Wei HUA
1
;
Shu ZHANG
;
Fang-Zheng WANG
Author Information
- Publication Type:Journal Article
- MeSH: Adult; Aged; Aged, 80 and over; Cardiac Pacing, Artificial; methods; Chronic Disease; Defibrillators, Implantable; Electric Countershock; methods; Female; Heart Failure; therapy; Humans; Male; Middle Aged; Pacemaker, Artificial
- From: Chinese Journal of Cardiology 2007;35(12):1096-1098
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo observed the clinical efficacy of cardiac resynchronization therapy-defibrillator (CRT-D) in selected patients with chronic heart failure one year after implantation.
METHODSSeventeen patients with drug-refractory heart failure received CRT-D implantation (6 patients were implanted with InSync Sentry). The underlying heart diseases were dilated cardiomyopathy in 12 patients and ischemic heart disease in 5 patients. There were 13 patients with a history of ventricular tachycardia/ventricular fibrillation.
RESULTSCRT-D were successfully implanted in all patients without complication. The mean left ventricular pacing threshold was 1.6 V. The defibrillation threshold was no more than 20 J. During a mean follow-up of 13 months, no death occurred and LV function was improved. The shock induced by ventricular tachycardia was delivered in 5 patients and alarming due to heart failure occurred twice in 1 patient.
CONCLUSIONSThe implantation of CRT-D for treating refractory heart failure patients is feasible and safe. The application of CRT-D was associated with an improved cardiac function and a reduced risk of sudden cardiac death.
