在数字时代的年轻美国运动员中,与种族和性别相关的电心图再极化特征
Jason V Tso1, Samuel Montalvo2, Filipe Ferrari3
1Division of Cardiovascular Medicine, Stanford Center for Inherited Cardiovascular Disease, Stanford, California, USA; Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, California, USA.
JACC. Advances
|December 6, 2025
概括
前T波逆转 (TWI) 在年轻运动员中很常见,性别影响其流行率,而不是种族. 特定的凸前TWI模式似乎是所有种族的正常发现.
科学领域:
- 心脏病学 心脏病学
- 运动医学 运动医学
- 电心电图是指心电图.
背景情况:
- 2017年国际心电图 (ECG) 解释标准在运动员中根据性别和种族区分前T波逆转 (TWI).
- 以前的解释表明TWI模式的种族差异.
研究的目的:
- 在美国运动员的大型数字心电图数据库中分析TWI和T波幅的性别和种族相关差异.
- 为了评估凸前TWI模式的患病率.
主要方法:
- 分析了8758名运动员查心电图 (平均年龄18.5岁,58.7%是男性).
- 定义TWI为逆转<-0.075 mV.
- 由J点升高>0.075mV识别的凸前TWI模式,在前导线 (V2-V4) 中具有特定的ST形态.
主要成果:
- 在58%的运动员中,TWI发生在≥1个先验中;7.5%的运动员在V2-V4.4中出现TWI.
- 在V1-V3.3线索中,TWI在女性中比男性更频繁.
- 虽然黑人男性中较常见的是较低领线的TWI,但凸的前TWI模式显示没有显著的性别或种族差异 (总体为0.26%).
- T波振幅与男性性别和较低的心率相关,但不是种族.
结论:
- 前部TWI在年轻的美国运动员中很普遍,性别差异显著,但种族差异很小.
- 凸起的前面TWI模式很少见,并且似乎是一个正常的发现,不论种族.
- 结果提供了数字参考值,可能有助于改进未来的运动员心电图查指南.
更多相关视频
相关概念视频
Electrocardiogram
5.3K
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
5.3K
Electrocardiogram Fundamentals
1.4K
Introduction
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
1.4K
Cardiac Action Potential
5.6K
Cardiac action potentials are essential for proper heart function, enabling the rhythmic contractions needed for adequate blood circulation. Nodal cells and Purkinje fibers, specialized for electrical conduction, generate these action potentials.
The cardiac action potential process involves a series of phases characterized by the movement of ions across the cardiac cell membranes, leading to the depolarization and repolarization of the cardiac myocytes.
Ionic Basis of Cardiac Action Potentials
The cardiac action potential process involves a series of phases characterized by the movement of ions across the cardiac cell membranes, leading to the depolarization and repolarization of the cardiac myocytes.
Ionic Basis of Cardiac Action Potentials
5.6K
Electrophysiology of Normal Cardiac Rhythm
8.7K
The normal cardiac rhythm is a synchronized electrical activity that facilitates the regular and coordinated contraction of the heart muscle. This process is essential for efficient blood circulation throughout the body. The fundamental elements involved in establishing and maintaining this rhythm include the unique electrical properties of cardiac muscle cells, the sinoatrial (SA) node's pacemaker function, the specialized conducting system, and the ionic mechanisms underlying each phase...
8.7K
ECG Interpretation of Rhythms
12.2K
An electrocardiogram (ECG)graphically represents the heart's electrical activity on ECG paper or a monitor.
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
12.2K
Correlation between ECG and Cardiac Cycle
11.6K
The electrical signals recorded on an electrocardiogram (ECG) occur before the mechanical processes of contraction and relaxation during the cardiac cycle.
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
11.6K


