Circulation: 冠脉搭桥术后心源性猝死的发病时间点及危险因素分析

2017-06-26 MedSci MedSci原创

冠状动脉搭桥手术(CABG)后心力衰竭患者心源性猝死(SCD)的风险在现代临床外科手术血运重建的临床试验中尚未得到研究。该报道研究了搭桥术后后心源性猝死的发生率,发生时间以及相关危险因素。

背景:冠状动脉搭桥手术(CABG)后心力衰竭患者心源性猝死(SCD)的风险在现代临床外科手术血运重建的临床试验中尚未得到研究。该报道研究了搭桥术后后心源性猝死的发生率,发生时间以及相关危险因素。

方法:纳入参加缺血性心力衰竭手术治疗临床试验的病人,包含有接受或未接受外科血流重建的冠脉搭桥手术的患者。研究排除了以前的植入式心律转复除颤器和那些随机的仅用药物治疗的患者。主要结果是第三方委员会裁定为心源性猝死。 Cox模型用于分析和识别SCD的危险因素。 Fine及Gray法用于评估SCD的发生率,以及其他死亡风险。

结果:在46个月的中位随访时间中,1411例接受CABG的患者(n = 934未接受血流重建)或(n = 477接受血流重建)中有113例患有SCD; 311死于其他原因。入院时平均左心室射血分数为28±9%。 SCD的5年累积发病率为8.5%。患有SCD的患者中未死亡的通常为较年轻的且无其他死亡风险的患者。在CABG后的前30天,SCD(n = 5)占所有死亡人数的7%。 SCD发生时间为31至90天。冠状动脉解剖学特点和左心室功能,收缩末期容积指数和B型利尿钠肽与SCD最相关。

结论: 伴有左室功能下降的患者,在接受CABG后最易发生SCD的时间点在术后的第一个月和第三个月之间。说明SCD的风险应在术后早期发生。术前收缩末期容积指数及B型钠酸肽升高的患者较无升高患者发病率更高。



原文出处:
Rao MP, Al-Khatib SM, Pokorney SD, et al. Sudden Cardiac Death in Patients With Ischemic Heart Failure Undergoing Coronary Artery Bypass Grafting: Results From the STICH Randomized Clinical Trial (Surgical Treatment for Ischemic Heart Failure). Circulation. 2017 Mar 21;135(12):1136-1144. doi: 10.1161/CIRCULATIONAHA.116.026075.

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    2017-06-28 zzc2214
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    2017-06-28 yese
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    2017-06-28 mhm295

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中国首例CABG后经心尖微创主动脉瓣置换术

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