血液尿素对急性损伤和血管炎死亡率的预后价值:使用多变体关节模型和机器学习的大型队列研究
Si Chen1, Rongfeng Liu1, Yongzhi Zhang1
1Department of Clinical Laboratory, Beijing Anzhen Hospital, Capital Medical University, Anzhen Road No. 2, Chaoyang District, Beijing 100029, China.
Diagnostics (Basel, Switzerland)
|March 14, 2026
概括
血尿素 (BUN) 预测急性损伤 (AKI) 和血管炎患者的死亡率. 较高的BUN水平,特别是32 mg/dL以上,表明风险较高,有助于早期分层.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 类风湿病学 类风湿病学
- 关键护理医学 关键护理医学
背景情况:
- 急性损伤 (AKI) 是血管炎的一个重要并发症,影响患者的预后.
- 血液尿素 (BUN) 对AKI和血管炎死亡率的预测作用需要进一步澄清.
研究的目的:
- 调查BUN水平与血管炎患者AKI发生之间的关联.
- 评估BUN作为血管炎患者短期 (30天) 和长期 (365天) 死亡率的预测因素,特别是那些患有AKI的患者.
主要方法:
- 来自MIMIC-III/IV数据库的701名血管炎患者的回顾性分析.
- 根据KDIGO血清肌素标准进行AKI诊断.
- 统计分析包括后勤回归,考克斯回归,受限立方线 (RCS) 分析和机器学习模型.
主要成果:
- 在25.1%的患者中观察到AKI,与增加的30天和365天死亡率相关.
- BUN独立预测了AKI (OR:1.03;95%CI:1.02-1.05) 和AKI患者的死亡率.
- 确定了32 mg/dL的BUN值,超过该值,死亡风险显著增加. 机器学习模型证实了BUN和年龄是关键的预后因素.
结论:
- 血尿素作为AKI和血管炎死亡率的实用和独立预测剂.
- BUN测量可以帮助早期风险分层,以改善患者管理和结果.
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