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  • Title: [Efficacy of cardiac resynchronization therapy-defibrillator for treating patients with chronic heart disease].
    Author: Hua W, Zhang S, Wang FZ.
    Journal: Zhonghua Xin Xue Guan Bing Za Zhi; 2007 Dec; 35(12):1096-8. PubMed ID: 18341807.
    Abstract:
    OBJECTIVE: To observed the clinical efficacy of cardiac resynchronization therapy-defibrillator (CRT-D) in selected patients with chronic heart failure one year after implantation. METHODS: Seventeen 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. RESULTS: CRT-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. CONCLUSIONS: The 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.
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