摘要
目的探讨体外膜肺氧合(ECMO)辅助下经导管主动脉瓣置换术(TAVR)治疗极高危主动脉瓣狭窄临床效果。方法 2018年于西京医院接受TAVR治疗极高危主动脉瓣狭窄病人2例,病人心脏射血分数(EF)<20%,手术过程中病人采用ECMO支持,观察ECMO辅助下TAVR的临床安全性和有效性。结果 2例ECMO辅助极高危病人均进行了TAVR手术,围手术期病人血流动力学稳定,于TAVR手术结束前撤除ECMO,手术时间分别为220、190min,DSA照射时间分别为38、26min,ECMO辅助时间分别为150、38min,随访中2例病人心脏功能明显改善,EF值明显提高。结论对于极高危主动脉瓣狭窄的病人在行TAVR时,ECMO辅助可保证病人围手术期的血流动力学稳定,避免恶性心率失常和循环崩溃的发生,提供有效心肺功能支持,应成为此类病人的首选治疗方式。
Objective To investigate the clinical effect of extracorporeal membrane oxygenation(ECMO)-assisted transcatheter aortic valve replacement(TAVR)in the treatment of patients with extremely high-risk aortic valve stenosis. Methods Two patients with extremely high-risk aortic valve stenosis who were treated in Xijing Hospital in 2018 were enrolled,with an ejection fraction(EF)of<20%.Both patients were given ECMO during surgery to observe the clinical effect and safety of ECMO-assisted TAVR. Results Both patients underwent ECMO-assisted TAVR had stable hemodynamic parameters during the perioperative period.ECMO was removed before TAVR ended.The time of operation for these two patients was 220,190 min respectively,the duration of digital subtraction angiography was 38,26 min respectively,and the duration of ECMO was 150,38 min respectively.Both patients had significant improvements in cardiac function and EF during follow-up.Conclusion In patients with extremely high-risk aortic valve stenosis,ECMO during TAVR can maintain stable hemodynamic parameters during the perioperative period,avoid malignant arrhythmia and circulatory collapse,and provide effective cardiopulmonary support.Therefore,it can be used as the preferred treatment for such patients.
引文
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