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浅低温体外循环心脏跳动中二尖瓣替换术的临床研究

SHANDONG MEDICAL JOURNAL(2005)

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Abstract
目的评价浅低温体外循环(CPB)心脏跳动中二尖瓣替换术的疗效及其对心肌的保护作用.方法将30例二尖瓣狭窄并关闭不全患者随机分为两组各15例,非停跳组在浅低温(31~33℃)CPB心脏跳动中行二尖瓣置换术,停跳组采用传统心脏停跳法行瓣膜置换术.结果非停跳组术后病情平稳,多巴胺用量0~5μg·kg-1·min-1,少于停跳组3~10μg·kg-1·min-1,P<0.01;无低心排综合征、严重心律失常及气栓栓塞等严重并发症.停跳组术中并发低心排综合征1例,频发室性早搏2例.术中二尖瓣置换后及术后4 h,停跳组血清心肌酶含量较非停跳组显著增加(P<0.01).结论浅低温CPB心脏跳动中二尖瓣置换术是一种安全、有效、能使心肌处于近似生理状态的手术方法.
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Key words
Transcatheter Aortic-Valve Replacement,Echocardiography,Myocardial Perfusion
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