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目的:探讨心脏再同步化治疗(CRT)对充血性心力衰竭患者心功能改善的效果。方法:我院于2008年3月～2011年3月为5例VVI起搏器患者升级为CRT的临床资料进行回顾性分析。结果:5例术后1月和3个月胸闷气促症状明显改善,生活能够自理,心功能可达到NYHAⅡ级;QRS宽度较术前变窄。结论:通过升级后,双室起搏比单纯右室起搏能更显著改善患者NYHA心功能分级和射血分数,提高生活质量和运动能力。
Objective: To investigate the effect of cardiac resynchronization therapy (CRT) on improving cardiac function in patients with congestive heart failure. Methods: The clinical data of 5 patients with VVI pacemaker upgraded to CRT from March 2008 to March 2011 in our hospital were analyzed retrospectively. Results: The symptoms of chest tightness in 5 patients were significantly improved at 1 month and 3 months after operation. Their life could take care of themselves. The cardiac function could reach NYHA Ⅱ level. The width of QRS was narrower than that before operation. Conclusion: After the upgrade, biventricular pacing can significantly improve the NYHA functional class and ejection fraction, and improve the quality of life and exercise capacity in patients with right ventricular pacing.