在血液循环停止下进行大动脉重建的患者中,ARCH评分的外部验证
Danial Ahmad1, Michel Pompeu Sá1, James A Brown1
1Division of Cardiac Surgery, Department of Cardiothoracic Surgery, University of Pittsburgh, Pittsburgh, Pa; UPMC Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pa.
The Journal of thoracic and cardiovascular surgery
|May 16, 2024
概括
在低温下循环停止的情况下用于大动脉门重建的ARCH得分,在这个验证研究中显示出医院内死亡率的预测能力较差. 然而,它对预测死亡率的校准非常好.
科学领域:
- 心血管外科心血管外科
- 胸部外科手术 胸部外科手术
- 医疗信息学 医疗信息学
背景情况:
- 带有低温循环停止 (HCA) 的大动脉门手术存在重大风险.
- 最近开发的ARCH评分是为了预测结果,但需要外部验证.
- 这项研究旨在在当地患者队列中验证ARCH评分.
研究的目的:
- 为了外部验证ARCH得分对住院死亡率的预测性能.
- 在现实环境中评估ARCH分数的区分能力和校准.
主要方法:
- 对760名接受HCA开放性大动脉门手术的患者 (2014-2023) 的回顾性分析.
- 统计分析包括单变量和多变量模型.
- 模型性能使用C统计 (ROC分析) 和Brier评分进行校准.
主要成果:
- 该队列 (38.3%的女性,平均年龄为61) 主要接受紧急/紧急手术 (59.6%).
- 住院死亡率为8.4%,中风发生在5.4%的患者中.
- 根据ARCH的得分,区分能力较低 (C-统计值为0.62),但对住院死亡率的校准能力很好 (Brier得分为0.07).
结论:
- 在这个患者群体中,ARCH评分对区分住院死亡风险的能力有限.
- 尽管差别很低,但得分显示出优异的校准,这表明风险分层的潜在实用性.
- 可能需要进一步的研究来完善ARCH得分,以提高大动脉门手术结果的准确性.
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