Maclaren Graeme, Butt Warwick, Best Derek, Donath Susan, Taylor Anna
Intensive Care Unit, The Royal Children's Hospital, Melbourne, Australia.
Pediatr Crit Care Med. 2007 Sep;8(5):447-51. doi: 10.1097/01.PCC.0000282155.25974.8F.
To report our institutional experience of venoarterial extracorporeal membrane oxygenation (ECMO) in children with septic shock and circulatory collapse.
Retrospective case series.
Intensive care unit of a tertiary pediatric referral center.
Forty-five children with refractory septic shock who received venoarterial ECMO for hemodynamic support.
Venoarterial ECMO.
We measured mean arterial pressure and inotropes before cannulation, ventilator settings, oxygenation, site and cause of infection, time on ECMO, complications of ECMO relating to the circuit or anticoagulation, survival to hospital discharge, and functional outcome assessment. Between July 1988 and October 2006, 441 children at our institution received extracorporeal life support for a variety of indications. Forty-five (10%) with septic shock received venoarterial ECMO specifically for hemodynamic support. Eighteen (40%) of these had suffered cardiac arrest and were receiving chest compressions immediately before cannulation. The median time spent on ECMO was 84 hrs (range, 32-135). There were mechanical problems with the ECMO circuit requiring intervention in 17 (38%) patients, such as oxygenator or pump head failure, clots in the circuit, or cannulae malposition. This caused no long-term harm in any but one of the patients, who died during a circuit change. Eleven patients (24%) had clinically apparent episodes of bleeding that required surgical intervention or blood transfusion. Twenty-one (47%) patients survived to hospital discharge. Atrioaortic cannulation through a sternotomy incision was associated with an improvement in survival to hospital discharge (73% of those with central cannulation survived vs. 44% without, p = .05). No survivors had severe disability at long-term follow-up.
Extracorporeal membrane oxygenation can be safely used to resuscitate and support children with sepsis and refractory shock. Sepsis and multiorgan failure should not be considered a contraindication to ECMO. This study adds support to existing guidelines.
报告我们机构对感染性休克和循环衰竭儿童进行静脉-动脉体外膜肺氧合(ECMO)治疗的经验。
回顾性病例系列研究。
一家三级儿科转诊中心的重症监护病房。
45例难治性感染性休克儿童接受静脉-动脉ECMO以获得血流动力学支持。
静脉-动脉ECMO。
我们测量了插管前的平均动脉压和血管活性药物使用情况、呼吸机设置、氧合情况、感染部位及原因、ECMO使用时间、与回路或抗凝相关的ECMO并发症、出院生存率以及功能结局评估。1988年7月至2006年10月期间,我们机构有441名儿童因各种适应证接受体外生命支持。其中45例(10%)感染性休克儿童专门接受静脉-动脉ECMO以获得血流动力学支持。其中18例(40%)在插管前发生心脏骤停并正在接受胸外按压。ECMO的中位使用时间为84小时(范围32 - 135小时)。17例(38%)患者的ECMO回路出现机械问题需要干预,如氧合器或泵头故障、回路内血栓形成或插管位置不当。除1例在回路更换期间死亡的患者外,其他患者均未因此造成长期损害。11例患者(24%)出现临床明显的出血事件,需要手术干预或输血。21例(47%)患者存活至出院。通过胸骨切开术切口进行主动脉插管与出院生存率的提高相关(中心插管患者中有73%存活,未进行中心插管的患者中为44%,p = 0.05)。长期随访中,没有存活者有严重残疾。
体外膜肺氧合可安全用于复苏和支持患有脓毒症和难治性休克的儿童。脓毒症和多器官功能衰竭不应被视为ECMO的禁忌证。本研究为现有指南提供了支持。