相关实验视频

Updated: Jan 8, 2026

Establishing a Competing Risk Regression Nomogram Model for Survival Data

Establishing a Competing Risk Regression Nomogram Model for Survival Data

Published on: October 23, 2020

预测腹腔大动脉动脉瘤患者的ICU死亡率:基于MIMIC-IV和eICU-CRD的诺莫图

Mengwei He¹, Xiang Zhang¹, Weixue Huo¹

¹Department of Vascular Surgery, Intervention Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, People's Republic of China.

International journal of medical sciences

|December 16, 2025

概括

这项研究开发了一种机器学习名录,用于预测腹腔大动脉动脉瘤 (AAA) 严重病患者的早期死亡率. 该工具在7天内准确识别高风险患者,帮助做出关键护理决策.

科学领域:

关键护理医学关键护理医学
心血管外科心血管外科
医疗保健中的机器学习

背景情况:

腹腔大动脉瘤 (AAA) 是重症监护室 (ICU) 的一个危及生命的疾病.
现有的ICU评分系统无法预测AAA患者的死亡风险.
需要改进预后工具,以便在AAA中进行早期风险分层.

研究的目的:

开发和验证一种基于机器学习的名谱,用于预测重症AAA患者的短期死亡率 (≤7天).
整合AAA特定的预测因素,克服传统评分系统的局限性.
通过使用独立数据集进行外部验证来确保可通用性.

主要方法:

利用两个大型ICU数据库 (MIMIC-IV和eICU-CRD) 进行模型开发和外部验证.
采用LASSO回归和SVM-RFE进行关键预测器选择.
构建并验证了基于考克斯回归的7日,14日和28日死亡率预测的诺姆图.

主要成果:

确定了六个关键预测因素:年龄,败血症,BUN,抗高血压药的使用,SpO2和离子间隙.
诺米图表显示了7天死亡率的最佳预测准确性 (AUC: 0.730培训,0.718验证).
外部验证证实了模型的概括性 (7天AUC:0.723),具有强大的校准和临床效用.

结论:

一种新型的诺米图有效地预测了重症AAA患者的早期死亡率 (≤7天).
该工具提供了一种可靠的方法,用于在重症监护机构的风险分层.
诺米图可以指导及时干预,以改善患者的治疗结果.

关键词:

腹部大动脉动脉瘤腹部大动脉动脉瘤临床决策支持临床决策支持重症监护病房的重症监护病房是一个重症监护病房.死亡率预测死亡率预测这个名字是名ogramogram.风险分层的风险分层.

更多相关视频

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery

Published on: September 27, 2024

Constructing and Visualizing Models using Mime-based Machine-learning Framework

Constructing and Visualizing Models using Mime-based Machine-learning Framework

Published on: July 22, 2025

相关概念视频

Aneurysm III: Interprofessional Care

Aneurysm III: Interprofessional Care

Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...

Aneurysm IV: Nursing Management

Aneurysm IV: Nursing Management

Vigilant monitoring for aneurysm rupture is essential for patients undergoing aortic surgery.Preoperative Nursing ManagementContinuously monitor the patient for manifestations of aneurysm rupture, such as pallor, weakness, tachycardia, hypotension, abdominal, back, groin, or periumbilical pain, changes in consciousness, and a pulsating abdominal mass. Regularly assess the patient's peripheral pulses.Instruct the patient to consume a clear liquid diet the day before surgery and administer...