在患有第一级 AV 阻塞的患者中,高度 AV 阻塞的 10 年风险预测
Dong Won Kim1,2, HeeYeon Kwon1, Je-Wook Park1
1Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, Republic of Korea.
AMIA ... Annual Symposium proceedings. AMIA Symposium
|February 23, 2026
概括
一级心房静脉阻塞 (AV) 可能预测到更高程度的AV阻塞的进展. 使用心电图参数的机器学习模型可以准确预测这种风险,帮助临床决策.
科学领域:
- 心脏病学 心脏病学
- 医疗信息学 医疗信息学
- 人工智能在医学中的应用
背景情况:
- 传统上被认为是良性的一级心房静脉阻塞 (AV) 越来越多地被认为是导致更高程度心房静脉阻塞的潜在危险因素.
- 早期识别患有AV阻塞进展风险的个体对于及时的临床干预至关重要.
研究的目的:
- 开发和外部验证一种机器学习模型,用于预测一级AV阻断向更高程度的进展.
- 为了确定电心电图 (ECG) 衍生的关键参数和预测AV阻塞进展的临床因素.
主要方法:
- 一项回顾性队列研究,利用来自两家医院的12心电图数据进行模型开发和外部验证.
- 使用一个随机森林机器学习算法,对六个心电图参数 (RR间隔,P持续时间,PR段,PR间隔,QRS持续时间,QT间隔) 以及患者年龄和性别进行训练.
- 用SHAP (夏普利增量解释) 分析来解释模型并确定重要的预测因素.
主要成果:
- 机器学习模型表现出强大的预测性能,在内部验证中实现了接收器操作特征曲线 (AUROC) 下的面积为0.823,在外部验证中达到0.808.
- 通过SHAP分析确定的关键预测因素包括PR段持续时间,QRS持续时间和患者年龄.
- 该模型的性能进一步得到了AUPRC值0.719 (内部) 和0.894 (外部) 的支持.
结论:
- 一个经过验证的机器学习模型可以有效地使用易于获得的心电图参数和基本临床数据来分层 AV 阻塞进展的风险.
- 这种预测工具可以帮助临床医生为一级AV阻塞患者做出明智的决定.
- 这些发现突出了人工智能驱动的对心电图数据的分析,用于早期疾病检测和心脏病风险评估的潜力.
更多相关视频
04:05Author Spotlight: Unveiling Prognostic Indicators in Heart Failure - The Role of Phase Angle and Bioelectrical Impedance Analysis
Published on: June 30, 2023
2.9K
08:10Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
Published on: July 20, 2022
2.2K
相关概念视频
01:18Dysrhythmias IV: Characteristics of Bradyarrhythmias
646
Bradyarrhythmias are cardiac rhythm disorders characterized by a slower-than-normal heart rate, typically defined as fewer than 60 beats per minute. Some of which are discussed here:Sinus BradycardiaSinus bradycardia presents a heart rate lower than 60 beats per minute, with a regular rhythm originating from the SA node. The ECG typically shows normal P waves preceding each QRS complex, a normal PR interval (0.12 to 0.20 seconds), and a normal QRS duration (0.06 to 0.10 seconds).First-Degree AV...
646
01:29Disturbances in Heart Rhythm
3.3K
Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
3.3K
01:22Antiarrhythmic Drugs: Class I Agents as Sodium Channel Blockers
3.7K
Class I antiarrhythmic drugs are used to treat various types of arrhythmias or irregular heart rhythms. These drugs block the sodium (Na+) channels in the cardiac cells, thereby affecting the movement of electrical impulses across the heart. Class I antiarrhythmic drugs are divided into three subgroups: Class IA, Class IB, and Class IC, each with distinct mechanisms of action and effects on the heart.
Class 1A Antiarrhythmic Drugs: These drugs work by moderately blocking sodium channels,...
Class 1A Antiarrhythmic Drugs: These drugs work by moderately blocking sodium channels,...
3.7K
01:22Heart Failure Drugs: β-Blockers
1.0K
β-adrenergic antagonists, commonly known as β-blockers, block the effects of sympathetic neurotransmitters such as noradrenaline (NA) and adrenaline (ADR). They have several beneficial effects in heart failure treatment. They reduce heart rate, the force of contraction, and cardiac muscle relaxation. They also slow the atrial-ventricular conduction rate and raise the threshold for arrhythmias. The concentration of β-blockers determines their effects on bronchodilation,...
1.0K
01:25ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias
665
Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
665
01:25Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
572
Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
572