2010•International Journal of Cardiovascular DiseaseRequires access

Clinical analysis of the efficacy of cardiac resynchronization therapy in patients with congestive heart failure

Qiu Jian-pin

Abstract

Objective:To observe the clinical efficacy of cardiac resynchronization(CRT)pacemaker on dilated cardiomyopathy(DCM)complicated with congestive heart failure(CHF).Methods:CRT pacemakers were implanted in 10 patients with NYHA class Ⅲ～Ⅳ and mean QRS duration ≥130 ms.Left ventricular systolic and diastolic functions were assessed before and one year after the procedure with echocardiography.Results:After implantation of CRT pacemakers,NYHA functional class and 6MHW were significantly improved.Left ventricular ejection fraction(LVEF)and diastolic filling were increased.QRS duration was shortened.Conclusion:CRT pacemaker has a significant beneficial effect on patients with dilated cardiomyopathy complicated with CHF.

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Key concepts: Medicine, Cardiology, Ejection fraction, Internal medicine, Cardiac resynchronization therapy, Heart failure, QRS complex, Dilated cardiomyopathy