NEJM:严重缺血性二尖瓣返流:置换or 修补?

2016-02-03 MedSci MedSci原创

在一项对比重度缺血性二尖瓣反流患者使用二尖瓣置换术与二尖瓣修补术治疗效果的随机试验中,我们发现两种治疗方法在患者左心室收缩末期容积指数(LVESVI)、生存期或术后1年不良事件发生上并无显著差异。但是,二尖瓣修补术患者中或重度二尖瓣返流的复发率明显增多。本文现在报告这项试验的2年随访结果。

在一项对比重度缺血性二尖瓣反流患者使用二尖瓣置换术与二尖瓣修补术治疗效果的随机试验中,我们发现两种治疗方法在患者左心室收缩末期容积指数(LVESVI)、生存期或术后1年不良事件发生上并无显著差异。但是,二尖瓣修补术患者中或重度二尖瓣返流的复发率明显增多。本文现在报告这项试验的2年随访结果。

将251例接受二尖瓣修补术或置换术的患者随机分配。随访2年,评估患者的临床和超声心动图的结果。

结果发现,在存活的患者中,二尖瓣修补术患者的平均(±SD)2年 LVESVI 为52.6±27.7 mL/m2,而二尖瓣置换术患者则为60.6±39 mL/m2(从基线时期的平均变化分别为−9 mL/m2和−6.5 mL/m2)。修补组患者2年死亡率为19%,置换组为23.2%(修补组危险比为0.79,, 95% CI,0.46~1.35,P=0.39)。2年时 LVESVI(包括死亡)的等级评估显示两组患者之间并无显著差异(Z得分=−1.32,P = 0.19)。2年期间修补组患者中重度二尖瓣返流的复发率明显高于置换组(58.8% VS. 3.8%,P<0.001)。两组患者在严重不良反应事件和整体再次入院率上并无显著差异,但是,修补组患者存在更多与心脏衰竭相关的严重不良反应以及更高的心血管再入院率。明尼苏达心力衰竭生活质量量表显示,置换组患者的生活质量改善程度更大。

总而言之,在接受二尖瓣修补或置换治疗的重度缺血性二尖瓣关闭不全的患者中,随访2年后发现两组患者在左心室重构或存活率上并无显著差异。但是修补组患者的二尖瓣返流复发率更高,导致更多心脏衰竭相关不良反应事件的发生以及心血管疾病再入院的发生。

原始出处:

Daniel Goldstein, Alan J. Moskowitz, et al.. Two-Year Outcomes of Surgical Treatment of Severe Ischemic Mitral Regurgitation. N Engl J Med 2016; 374:344-353January 28, 2016DOI: 10.1056/NEJMoa1512913

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    2016-03-09 yxch48
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    2016-02-05 wwzzly