预测心力衰竭的死亡率:MIMIC-III中的BUN/肌素比率
Changsen Zhu1, Liyan Wu1, Yiyi Xu2
1Department of Rehabilitation Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China.
Frontiers in cardiovascular medicine
|March 19, 2025
概括
血尿素/肌素比率 (BCR) 显示了心力衰竭患者与死亡率的U形关联. 高于22的BCR水平显著增加死亡风险,而较低的BCR水平可能具有保护作用.
科学领域:
- 心脏病学 心脏病学
- 腎臟病學 (nephrology) 是一種醫學專業.
- 关键护理医学 关键护理医学
背景情况:
- 心力衰竭 (HF) 是全球死亡的主要原因.
- 血尿素/肌素比率 (BCR) 是一个潜在的生物标志物,用于HF结局.
- 了解BCR和HF预后之间的准确关系至关重要.
研究的目的:
- 为了研究血尿素/肌素比率 (BCR) 的不同水平对心力衰竭患者的死亡率的影响.
- 确定心力衰竭重症监护机构中BCR的预后价值.
主要方法:
- 来自MIMIC-III数据库的1,475名心力衰竭患者的回顾性队列研究.
- 根据入院BCR水平,患者被分为四个四分之一.
- 使用Kaplan-Meier和Cox比例危险模型分析的生存结果,对于非线性关联而言,有限制的立方线.
主要成果:
- 增加BCR水平与更长的住院时间和降低生存率相关.
- 在最高的BCR四分位数中,住院 (18.8%) 和长期 (78.3%) 死亡率显著增加.
- 观察到U型关系:BCR12.5以下没有显著的死亡风险,12.5-22之间有潜在的保护作用,22以上风险增加.
结论:
- 入院BCR表明与心力衰竭死亡率存在非线性关联.
- BCR 作为一个有价值的预后工具,用于预测严重心力衰竭患者的预后.
- 具体的BCR值表明不同的风险水平,指导临床管理.
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