临床相关的手术内低血压的定义:基于数据的方法
Mathias Maleczek1,2, Daniel Laxar2, Angelika Geroldinger3
1Clinical Division of General Anaesthesia and Intensive Care Medicine, Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria.
确定手术内低血压 (IOH) 的最佳定义对于预测患者的结果至关重要. 这项研究发现,特定的平均动脉压值最能预测30天死亡率,住院时间和PACU住院时间.
科学领域:
- 麻醉学 麻醉学
- 关键护理医学 关键护理医学
- 在外科手术期间的医学.
背景情况:
- 术内低血压 (IOH) 的定义在不同研究中存在差异,阻碍了可比性和临床应用.
- 之前的研究还不清楚哪些IOH定义最能预测关键的术后结果.
- 这项研究解决了对标准化IOH定义的需求,以改善患者结果预测.
研究的目的:
- 确定最有效的术内低血压 (IOH) 的定义.
- 确定最能预测30天死亡率,住院时间 (hLOS) 和麻醉后护理单位住院时间 (PACU-LOS) 的IOH定义.
- 在临床实践和研究中为IOH定义选择提供数据驱动的建议.
主要方法:
- 一项回顾性队列研究,涉及65,454名接受非心胸外科手术的患者.
- 数据集被分为两个子集:一个用于选择最佳的IOH定义,另一个用于独立验证.
- 统计分析的重点是各种IOH定义和术后结果之间的关联.
主要成果:
- 几乎所有测试的IOH定义都显示了与不良结果的关联,随着平均动脉压 (MAP) 的下降,风险增加.
- 确定的最佳定义是:30天死亡率MAP<80 mmHg的相对时间,hLOS的最低MAP为1分钟,PACU-LOS的最低MAP为1个累积分钟.
- 独立的验证证实了这些选定的IOH定义与研究结果之间的显著关联.
结论:
- 这项研究确定了有关30天死亡率,hLOS和PACU-LOS的手术内低血压 (IOH) 的数据驱动,最合适的定义.
- 这些发现强调了仔细选择IOH定义对于准确的结果预测至关重要.
- 标准化IOH定义可以提高术后医学研究的可靠性和临床实用性.
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