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在急性A型大动脉剖析修复中,心肺旁路术期间的Nadir氧气输送
Qinbao Peng1, Minjia Cai1,2, Xing Chen1
1Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Journal of thoracic disease
|October 23, 2023
概括
在急性A型大动脉解剖手术 (ATAAD) 期间维持充足的氧气输送 (DO2) 可以显著降低90天死亡率. 在ATAAD患者中,DO2值为280毫升/分钟·米2与改善的生存率有关.
科学领域:
- 心血管外科心血管外科
- 胸部外科手术 胸部外科手术
- 关键护理医学 关键护理医学
背景情况:
- 急性A型大动脉解剖 (ATAAD) 是一种高风险的外科紧急情况.
- 以前的研究表明,在ATAAD中,高氧输送 (DO2) 和手术后死亡率降低之间存在联系.
- 为了改善结果,仍然需要定义最佳的手术内DO2值.
研究的目的:
- 调查在ATAAD患者中维持手术内DO2≥280mL/(min·m2) 和90天术后死亡率之间的关联.
- 为了确定特定的DO2值是否会影响太阳的ATAAD程序后的存活率.
主要方法:
- 对178名接受Sun手术的ATAAD患者进行了回顾性队列研究.
- 患者被分为一个低氧组 (DO2 <280 mL / min·m2) 和一个正常组 (DO2 ≥280 mL / min·m2)).
- 主要终点:90天全因死亡率;次要终点包括机械呼吸,CRRT和并发症.
主要成果:
- 诺莫西克组在心肺绕道 (CPB) 过程中表现出显著更高的血流,血红素 (HCT),DO2和DO2/VO2比率.
- 诺莫西克组的连续脏替代疗法 (CRRT) 和90天死亡率显著降低.
- 卡普兰-梅尔生存分析显示,诺莫西克组的生存率显著更高; 考克斯回归表明90天死亡率减少了72.1%.
结论:
- 在CPB期间维持手术期间的DO2≥280mL/(min·m2) 与ATAAD患者的90天死亡率降低有关.
- 优化CPB流量和HCT水平可以帮助实现目标DO2值.
- 这一发现支持了适当的手术内氧气输送在改善ATAAD结果方面的临床重要性.
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