开发和外部验证用于预测非创伤性脑下关节出血患者一年生存率的诺姆图
Yiwei Lv1, Zhongsheng Lu2, Menghui He1
1Department of Graduate School, Qinghai University, Xining, China.
Frontiers in surgery
|October 1, 2025
概括
这项研究确定了11个关键因素,预测了非创伤性脑下垂体出血 (SAH) 患者的生存率. 一个开发的诺莫格拉姆模型准确地评估了个性化治疗策略的患者风险.
科学领域:
- 神经学 神经学
- 关键护理医学 关键护理医学
- 生物统计学 生物统计学
背景情况:
- 下关节下出血 (SAH) 是一种严重的脑血管事件,具有高死亡率和长期的神经缺陷.
- 幸存者经常面临认知,记忆和神经精神问题,影响生活质量.
- 对于非创伤性SAH的长期预后仍然不太了解,需要更好的预测工具.
研究的目的:
- 确定非创伤性SAH患者生存的独立风险因素.
- 开发和验证用于患者风险分层的预测性名录模型.
- 通过风险分层护理和个性化干预来改善临床实践.
主要方法:
- 分析了825名非创伤性SAH患者的基线和临床数据 (MIMIC-IV数据库).
- 卡普兰-梅尔分析和多变量考克斯回归以确定生存风险因素.
- 使用C指数,ROC曲线,校准图表和外部数据 (290名患者) 构建和验证诺莫грам.
主要成果:
- 确定了11个独立的危险因素:住院时间,年龄,呼吸率,红细胞计数,血小板,,,离子间隙,尿素,血糖和败血症.
- 命名图显示了培训队列中的强烈歧视 (AUC 0.844,C指数 0.827).
- 该模型在外部验证中显示了可接受的性能 (AUC 0.807,C指数 0.851).
结论:
- 非创伤性SAH的存活率与11个特定的临床因素有关.
- 开发的诺米图是临床医生识别高风险患者的一个有价值的工具.
- 该模型促进了个性化的风险评估,并指导了针对性的医疗干预,以改善结果.
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