Crit Care Med:机械通气患者发生高碳酸血症对死亡率的影响!

2017-04-15 MedSci MedSci原创

肺部保护性通气有助于防止患者在侵入性机械通气时发生进一步的肺损伤。然而,肺保护性通气可能引起高碳酸血症和高碳酸血症酸中毒。目前,尚无大量的临床研究评估需要机械通气的患者发生高碳酸血症和高碳酸血症酸中毒的影响。近期,一项发表在杂志Crit Care Med上的文章对这一问题进行了研究。此项研究为多中心回顾性研究,旨在评估代偿性高碳酸血症和高碳酸血症酸中毒对接受机械通气的患者的影响。研究数据来自澳大利

肺部保护性通气有助于防止患者在侵入性机械通气时发生进一步的肺损伤。然而,肺保护性通气可能引起高碳酸血症和高碳酸血症酸中毒。目前,尚无大量的临床研究评估需要机械通气的患者发生高碳酸血症和高碳酸血症酸中毒的影响。


近期,一项发表在杂志Crit Care Med上的文章对这一问题进行了研究。

此项研究为多中心回顾性研究,旨在评估代偿性高碳酸血症和高碳酸血症酸中毒对接受机械通气的患者的影响。

研究数据来自澳大利亚和新西兰重症监护协会中心成果和资源评估的成人患者数据库,为期14年,其中171个ICU提供了身份数据。

患者在ICU停留的前24小时期间,基于他们的pH值和二氧化碳水平(正常碳酸血症和正常pH,代偿性高碳酸血症[二氧化碳升高,pH值正常]和高碳酸血症酸中毒),将患者分为三组。Logistic回归分析用于确定高碳酸血症和高碳酸血症酸中毒与住院死亡率的独立关联。

此项研究共有252,812例患者(正常二氧化碳水平和正常pH值,110104例;代偿性高碳酸血症,20463例;高碳酸血症,122245例)纳入分析。代偿性高碳酸血症和高碳酸血症酸中毒的患者具有较高的急性生理学和慢性健康评估III评分(49.2 vs 53.2 vs 68.6; p <0.01)。与其他组相比,高碳酸血症患者的死亡率更高,正常碳酸血症和正常pH值患者的死亡率最低。

经过调整疾病严重程度后,与正常碳酸血症和正常pH值患者相比,高碳酸血症(优势比为1.74; 95%CI,1.62-1.88)及代偿性高碳酸血症患者(优势比为1.18; 95%CI为1.10-1.26 )的住院死亡率调整后比例较高(p <0.001)。在高碳酸血症酸中毒患者中,死亡率随着PCO2升高至65 mm Hg而升高,死亡率居高不下。

此项研究表明,在重症监护的前24小时内,高碳酸血症酸中毒与代偿性高碳酸血症或正常碳水化合物相比,与医院的死亡率升高有关。

原始出处:
Tiruvoipati R, Pilcher D, et al. Effects of Hypercapnia and Hypercapnic Acidosis on Hospital Mortality in Mechanically Ventilated Patients. Crit Care Med. 2017 Apr 12. doi: 10.1097/CCM.0000000000002332.

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    2018-08-14 1e145228m78(暂无匿称)

    学习了,谢谢作者分享!

    0

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    2017-04-16 明天会更好!

    学习过了,很不错的。

    0

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    2017-04-15 一个字-牛

    谢谢分享,涨知识

    0

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2016年10月,美国胸科学会(ATS)、美国胸科医师学会(ACCP)发布了危重症患者机械通气撤机指南,指南专家组共提出了与康复协议,呼吸机撤机协议,以及气囊漏气试验相关的4条建议。全文获取: 下载地址:指南下载(需要扣积分2分, 梅斯医学APP免积分下载) 

Crit Care Med:无创通气会增加老年肺炎患者的死亡率吗?

本研究的目的是确定现实世界中,机械通气和肺炎患者结局间的关系。 我们对医疗保险受益人(年龄>64岁)进行了一项回顾性队列研究,这些患者是在2010至2011年间进行机械通气的肺炎患者,来自美国2757家急性护理医院。干预是无创通气与有创机械通气。 主要结果是30天死亡率,医疗保险报销作为次要结果。考虑到与使用无创通气相关的不可测量的混杂因素,我们使用了一个工具变量,高无创性通气使用医院