JAMA:内毒素活性升高的脓毒性休克:多粘菌素B血液灌流能否降低死亡率?

2018-11-29 贾朝娟 环球医学网

脓毒症病情凶险,病死率高。2108年发表在《JAMA》的一项研究调查了,对于内毒素活性升高的脓毒性休克患者,常规治疗中添加多粘菌素B血液灌流能否降低死亡率。

脓毒症病情凶险,病死率高。2108年发表在《JAMA》的一项研究调查了,对于内毒素活性升高的脓毒性休克患者,常规治疗中添加多粘菌素B血液灌流能否降低死亡率。

重要性:多粘菌素B血液灌流能降低脓毒症患者血液内毒素水平。内毒素活性可在血液中快速检测到。采用多粘菌素B血液灌流治疗内毒素活性升高的脓毒性休克患者,可能会改善临床结局。

目的:在内毒素活性升高的脓毒性休克患者中,考察在常规药物治疗中添加多粘菌素B血液灌流,同常规治疗相比,是否能改善生存率。

设计、环境和受试者:该多中心、随机临床试验,2010年9月和2016年6月间,从北美55家三级医院招募到450名脓毒性休克且内毒素活性检测水平为0.60或以上的成年危重患者。最后一次随访是2017年6月。

干预:在纳入研究后24 h内完成两种多粘菌素B血液灌注(90~120 min)联合标准疗法(n=224),或者为假血液灌注联合标准疗法(n=226)。

主要结局和测试:主要结局是所有随机分配的患者(所有受试者)和多器官衰竭评分(MODS)高于9分的患者28日死亡率。

结果:450名符合条件的患者(平均年龄,59.8岁;177名[39.3%]女性;平均APACHE II评分29.4分[范围,0~71分,评分较高代表越严重]),449名(99.8%)完成研究。多粘菌素B血液灌注与所有受试者(治疗组,223名中84名[37.7%] vs 假手术组226名中78名[34.5%];风险差[RD],3.2%;95%CI,-5.7%~12.0%;相对风险[RR],1.09;95%CI,0.85~1.39;P=0.49)或MODS高于9分的受试者(治疗组,146名中65名[44.5%] vs 假手术组,148名中65名[43.9%];RD,0.6%;95%CI,-10.8%~11.9%;RR,1.01;95%CI,0.78~1.31;P=0.92)28日死亡率有明显差异无关。总体上,报道264例严重不良事件(治疗组65.1% vs 假手术组57.3%)。最常见的严重不良事件是脓毒症加重(治疗组10.8% vs 假手术组9.1%)和脓毒性休克(治疗组6.6% vs 假手术组7.7%)。

结论和相关性:在内毒素活性升高的脓毒性休克患者中,与假手术治疗联合常规药物疗法相比,多粘菌素B血液灌注治疗联合常规药物疗法,不能降低28日死亡率。

原始出处:
Dellinger RP1, Bagshaw SM2, Antonelli M3, et al.Effect of Targeted Polymyxin B Hemoperfusion on 28-Day Mortality in Patients With Septic Shock and Elevated Endotoxin Level: The EUPHRATES Randomized Clinical Trial.JAMA. 2018 Oct 9;320(14):1455-1463. doi: 10.1001/jama.2018.14618.

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