心肺停止后的治疗性低温症:系统性审查和元分析与试验序列分析
Robert Maclaren1, Sterling Torian2, Tyree Kiser1
1Department of Clinical Pharmacy, University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, Colorado, USA.
概括
治疗性低温症 (TH) 并不能持续改善神经学结果或心脏骤停后的存活率. 然而,尽管心律失常的风险增加,但TH可能对心律节奏有冲击的患者有益.
科学领域:
- 关键护理医学 关键护理医学
- 神经学 神经学
- 心脏病学 心脏病学
背景情况:
- 由于试验结果相互矛盾,心脏骤停后治疗性低温症 (TH) 的有效性仍在争论中.
- 评估TH的潜在神经效益和不良影响之间的平衡对于临床实践至关重要.
研究的目的:
- 系统地审查和元分析随机对照试验 (RCT),评估TH对心脏骤停后患者神经学结果和不良事件的影响.
主要方法:
- 在MEDLINE和EMBASE的全面搜索中,确定了将TH (~33°C) 与心脏骤停后的正常热量 (36-38°C) 进行比较的RCT.
- 使用Covidence和Review Manager软件进行数据提取和分析,并使用标准工具评估偏差风险,敏感性和异质性.
- 试验序列分析 (TSA) 用于评估证据的确定性.
主要成果:
- 在1825个选研究中,包括5个RCT (n=3614). 在TH和正常热量组之间没有观察到有利的神经学结果 (RR 1.17,95% CI 0.97-1.41) 或所有原因死亡率 (RR 0.97,95% CI 0.89-1.05) 的显著差异.
- TH组表现出更高的副作用风险,主要是心律失常 (RR 1.16,95% CI 1.04-1.28).
- 亚组分析表明,在有冲击性节律的患者中,潜在的神经学益处 (RR 0.73,95% CI 0.6-0.88),而TSA则表明总体益处的统计徒劳性.
结论:
- 治疗性低温缺乏一致的证据,以改善神经学结果或一般心脏骤停后人口的死亡率.
- 患有可震动节律的患者可能从神经学上受益于TH,这需要进一步调查.
- 增加不良事件的风险,特别是心律失常,需要在应用TH时仔细考虑.
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