Division of Pediatric Cardiac Surgery, Department of Cardiothoracic Surgery, University of Iowa Children's Hospital, Iowa City, Iowa, USA.
Ann Thorac Surg. 2013 Jun;95(6):2140-6; discussion 2146-7. doi: 10.1016/j.athoracsur.2013.01.050. Epub 2013 Mar 15.
Rapid-response extracorporeal membrane oxygenation (RR-ECMO) has been implemented at select centers to expedite cannulation for patients placed on ECMO during extracorporeal cardiopulmonary resuscitation (ECPR). In 2008, we established such a program and used it for all pediatric venoarterial ECMO initiations. This study was designed to compare outcomes before and after program implementation.
Between 2003 and 2011, 144 pediatric patients were placed on venoarterial ECMO. Records of patients placed on ECMO before (17 ECPR and 62 non-ECPR) or after (14 ECPR and 51 non-ECPR) RR-ECMO program implementation were retrospectively compared.
The peak performance of the ECMO team was assessed by measuring ECMO initiation times for the ECPR patient subgroup (n = 31). There was a shift toward more ECPR initiations achieved in less than 40 minutes (24% pre-RR-ECMO versus 43% RR-ECMO; p = 0.25) and fewer requiring more than 60 minutes (47% pre-RR-ECMO versus 21% RR-ECMO; p = 0.14) after program implementation, although these changes did not reach statistical significance. After multivariable risk adjustment, RR-ECMO was associated with a 52% reduction in neurologic complications for all patients (adjusted odds ratio, 0.48; 95% confidence interval, 0.23 to 0.98; p = 0.04), but the risk of in-hospital death remained unchanged (adjusted odds ratio, 0.99; 95% confidence interval, 0.50 to 1.99; p = 0.99).
Implementation of a pediatric RR-ECMO program for venoarterial ECMO initiation was associated with reduced neurologic complications but not improved survival during the first 3 years of program implementation. These data suggest that development of a coordinated system for rapid ECMO deployment may benefit both ECPR and non-ECPR patients, but further efforts are required to improve survival.
在一些中心,快速反应体外膜氧合(RR-ECMO)已被用于为接受体外心肺复苏(ECPR)期间 ECMO 置管的患者加速置管。2008 年,我们建立了这样一个项目,并将其用于所有儿科静脉动脉 ECMO 启动。本研究旨在比较项目实施前后的结果。
在 2003 年至 2011 年期间,有 144 名儿科患者接受了静脉动脉 ECMO 治疗。回顾性比较了在 RR-ECMO 项目实施前(17 例 ECPR 和 62 例非 ECPR)或实施后(14 例 ECPR 和 51 例非 ECPR)接受 ECMO 治疗的患者记录。
通过测量 ECPR 患者亚组(n=31)的 ECMO 启动时间来评估 ECMO 团队的最高性能。在项目实施后,达到 ECMO 启动时间少于 40 分钟的 ECPR 启动比例增加(RR-ECMO 为 43%,而 RR-ECMO 为 24%;p=0.25),需要超过 60 分钟的比例减少(RR-ECMO 为 21%,而 RR-ECMO 为 47%;p=0.14),尽管这些变化没有达到统计学意义。经过多变量风险调整后,RR-ECMO 与所有患者的神经并发症风险降低 52%相关(调整后的优势比,0.48;95%置信区间,0.23 至 0.98;p=0.04),但住院期间死亡率保持不变(调整后的优势比,0.99;95%置信区间,0.50 至 1.99;p=0.99)。
为静脉动脉 ECMO 启动实施儿科 RR-ECMO 项目与降低神经并发症相关,但在项目实施的头 3 年内与生存率的改善无关。这些数据表明,建立一个协调的快速 ECMO 部署系统可能对 ECPR 和非 ECPR 患者都有益,但需要进一步努力提高生存率。