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目的研究植入传统起搏器后升级到心脏再同步治疗(CRT)的入选条件升级时机、临床疗效等相关问题。方法选择已植入起搏器患者,根据心脏左室舒张末期内径(LVDd)增大情况,心衰程度,电池电量等因素,适时升级到CRT,并比较升级前后LVDd大小,心脏射血分数(EF)变化的差异。结果升级CRT后LVDd减小,t=3.78,p<0.01。EF升高,t=8.89,p<0.01。与升级前比较均有显著性差异。结论对于起搏器依赖患者伴有心脏LVDd扩大、心功能减退均应及时升级到CRT,有利改善心功能。
OBJECTIVE: To study the timing, clinical efficacy and other related issues of the condition of escalation to cardiac resynchronization therapy (CRT) after implantation of traditional pacemaker. Methods The patients with implanted pacemakers were selected. According to the increase of left ventricular end-diastolic diameter (LVDd), heart failure, battery power and other factors, the pacemaker patients were upgraded to CRT at the appropriate time. The changes of LVDd, EF) changes in the difference. Results LVDd decreased after CRT was upgraded, t = 3.78, p <0.01. EF increased, t = 8.89, p <0.01. Compared with the pre-upgrade have significant differences. Conclusion For pacemaker-dependent patients with enlarged heart LVDd, cardiac dysfunction should be promptly upgraded to CRT, which can improve heart function.