2011•Medical Journal of National Defending Forces in Northwest ChinaRequires access

Clinical short-term observation of resynchronization therapy for patients with chronic heart failure

Yuxiu Zhang

Abstract

Objective:To observe the short-term effect of resynchronization therapy in patients with chronic heart failure.Methods:Thirty-one patients with chronic heart failure and left branch block received resynchronization therapy,left ventricle leads were implanted into one of the cardiac veins.Results:The heart function of 31 patients was significantly improved after the treatment.The QRS width was reduced from(118±21)ms to(160±32)ms,P﹤0.05.Left ventricular end-diastolic diameter(LVEDD) was decreased from(74.5±14.1)mm to(66.2±9.5)mm,P﹤0.01.Left ventricular end-systolic diameter(LVESD) was decreased from(65.2±10.2)mm to(57.3±9.2)mm,P﹤0.01.Left ventricular ejection fraction(LVEF) was increased from(0.24±0.09)to(0.36±0.11),P﹤0.01.Conclusion:The biventricular resynchronization therapy is an effective treatment for chronic heart failure.

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