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目的观察心脏再同步化治疗(CRT)慢性心力衰竭(CHF)的临床疗效。方法 20例CHF患者行CRT,术后随访(10.50±1.12)个月,观察心功能、QRS波时限、左室射血分数(LVEF)及相关心功能超声指标。结果 20例患者治疗后心功能均有明显改善,心功能NYHA分级由(3.30±0.48)级改善为(2.30±0.48)级,QRS波时限从(173.00±40.01)m s缩短至(145.00±15.81)ms,LVEF从(25±5)%提高至(33±7)%;以上观察指标治疗前后比较差异均有统计学意义(P<0.05或<0.01)。结论 CRT是治疗CHF的有效方法。
Objective To observe the clinical effect of cardiac resynchronization therapy (CRT) on chronic heart failure (CHF). Methods Twenty patients with CHF underwent CRT. The follow-up time was 10.50 ± 1.12 months. The cardiac function, QRS wave length, LVEF and related cardiac function were observed. Results The cardiac function of all the 20 patients was significantly improved after treatment. NYHA classification improved from (3.30 ± 0.48) to (2.30 ± 0.48) and QRS duration from (173.00 ± 40.01) ms to (145.00 ± 15.81) ms and LVEF increased from (25 ± 5)% to (33 ± 7)% respectively. There was significant difference between the above indexes before and after treatment (P <0.05 or <0.01). Conclusion CRT is an effective method for the treatment of CHF.