Tóm tắt

Background: Cardiac resynchronization therapy is one of the new methods used to treat patients with heart failure who have ventricular dyssynchrony. Objectives: 1. Study the clinical, laboratorial characteristics of heart failure patients having the ventricular dyssynchrony. 2. Study the efficacy of the cardiac resynchronization therapy in the aforementioned group of patients. Subjects and method: From Feb 2009 to Feb 2011, we implanted biventricular pacemakers at Hue University Hospital for 15 patients who had NYHA class III or IV of the heart failure, LVEF<30%, LVIDd>60mm on Echocardiography, QRS duration > 120ms, PR segment > 160ms on ECG. Results: 14/15 cases succeeded, cardiac function improved after 1 year follow – up of biventricular pacemaker implantation, with increased EF, decreased LVIDd, PAPs decreased significantly. At the cut-off of EF < 30%, the rate of patients with EF < 30% declined chronologically (1 year of follow – up). Functional symptoms improved overtly according to NYHA class. The choice of A-V intervals and V-V intervals was very important. Optimal A-V intervals and V-V intervals after programming were (152± 8.33)ms and (26.33± 6.31)ms, retrospectively. Conclusion: Cardiac resynchronization therapy is effective in improving heart failure with ventricular dyssynchronization.

Từ khoá

Toàn văn

PDF

Trong số này