危险因素和预测模型,急性缺血性中风后,不抽动脉冠状动脉旁路移植基于贝叶斯网络的贝叶斯网络
Wenlong Zou1, Haipeng Zhao2, Ming Ren3
1Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.
BMC medical informatics and decision making
|November 20, 2024
概括
贝叶斯网络模型可以预测急性缺血性中风 (AIS) 在非抽动冠状动脉旁路移植 (OPCABG) 后. 关键的危险因素包括女性性别,中风史,大脑动脉狭窄症以及高的GA,D-二聚体,RDW和BUN水平.
科学领域:
- 心血管外科心血管外科
- 神经学 神经学
- 医疗信息学 医疗信息学
背景情况:
- 急性缺血性中风 (AIS) 是一种潜在的并发症,它是在非抽动冠状动脉旁路移植 (OPCABG) 之后出现的.
- 识别风险因素和开发OPCABG后AIS的预测模型对于患者管理至关重要.
研究的目的:
- 在接受OPCABG的患者中识别AIS的风险因素.
- 使用贝叶斯网络 (BN) 方法开发和验证AIS的预测模型.
主要方法:
- 从10184名接受OPCABG的成年患者的电子健康记录的回顾性分析.
- 在80%的训练集上使用 tabu 搜索算法开发 BN 模型.
- 对20%的测试集进行BN模型的验证,将其性能与使用ROC和校准曲线的逻辑回归模型进行比较.
主要成果:
- 151名患者 (1.5%) 在OPCABG后发展出AIS.
- 对AIS的显著危险因素包括女性性别,有史以来的缺血性中风,严重的动脉狭窄,以及高的糖性白蛋白 (GA),D-二次体,红细胞分布宽度 (RDW) 和血液尿素 (BUN) 水平.
- BN模型的性能优于逻辑回归模型,在训练和测试数据集中实现了更高的准确性和AUC.
结论:
- 女性性别,缺血性中风病史,心血管狭窄,RDW-CV,GA,D-二次数,BUN和2型糖尿病是中国人群中OPCABG后AIS的潜在预测因素.
- 与物流回归相比,BN模型显示出更高的预测效率.
- 在接受OPCABG的患者中,BN模型对早期诊断和预防AIS有希望.
更多相关视频
09:12Surgical Swine Model of Chronic Cardiac Ischemia Treated by Off-Pump Coronary Artery Bypass Graft Surgery
Published on: March 27, 2018
9.4K
07:25Predicting Amputation using Local Circulating Mononuclear Progenitor Cells in Angioplasty-treated Patients with Critical Limb Ischemia
Published on: September 22, 2020
3.4K
相关概念视频
Ischemic Stroke l: Introduction
Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.
Ischemic Stroke ll: Pathophysiology
An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...
