儿童和青少年的心率变化,偶尔发现早期复极化模式
Ahmet F Arinc1,2, Sule Arici3, Figen Akalin4
1Department of Pediatrics, Recep Tayyip Erdogan University Research and Training Hospital, Rize, Turkey. arincahmetfatih@gmail.com.
BMC cardiovascular disorders
|May 9, 2025
概括
儿童的早期复极化模式 (ERP) 与增加的副交感音调有关,而不是心律失常. 下侧ERP可能在儿科患者中标志着自主失衡风险.
科学领域:
- 儿童心脏病学 儿童心脏病学
- 自主神经系统功能 自主神经系统功能
- 电心电图是指心电图.
背景情况:
- 电脑心电图上的早期复极化模式 (ERP),曾经被认为是良性的,现在与致命的心律失常有关.
- 在儿科患者群体中ERP的重要性尚未得到充分证实.
- 这项研究检查了意外检测到ERP的儿童过早死亡和心律失常的风险.
研究的目的:
- 调查偶然检测到的早期复极化模式 (ERP) 与儿童心脏不良事件之间的关联.
- 评估ERP儿童心电图 (ECG) 和心率变化 (HRV) 参数.
- 确定ERP在儿科队列中的临床相关性.
主要方法:
- 对6-18岁的健康儿童进行横截面研究,有或没有偶然检测到ERP.
- 使用了病史,体检,12导电图,心声学和24小时的霍尔特监测.
- 分析了心电图参数 (QTc,JT,Tp-e) 和时间/频域HRV指标 (SDNN,LF/HF比率).
主要成果:
- 患有ERP的儿童表现出较低的心率和增加的JT分散.
- ERP组显示出更大的腹腔间隔膜厚度和更高的LF/HF比率,表明交感活动增加.
- 下侧ERP与更高的心率和睡眠期间改变的自主参数有关.
结论:
- 儿童的偶发性ERP与心律失常事件无关,但与增加的副交感音调相关.
- 儿科患者的ERP可能表明自主失衡的风险增加,特别是在下侧局部.
- 需要进一步的研究来澄清ERP对儿童的长期影响.
相关概念视频
01:28Disturbances in Heart Rhythm
721
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...
Arrhythmias are categorized by their speed, rhythm, and origin. A slow...
721
01:30Cardiac Action Potential
594
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
594
01:28Mechanism of Cardiac Arrhythmias
854
Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.
854
01:19Electrophysiology of Normal Cardiac Rhythm
1.7K
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...
1.7K
01:30Pulse rhythm
718
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
718
01:30Factors Influencing Heart Rate
2.0K
The heart rate, or pulse rate, is a vital indicator of cardiovascular health. It reflects the number of times the heart beats per minute. Various physiological and environmental factors influence heart rate, increasing or decreasing cardiac output. Understanding these factors is crucial for assessing heart function and identifying potential health issues.
Let us explore the significant factors affecting heart rate, including age, body temperature, posture, acute pain, chemical influences,...
Let us explore the significant factors affecting heart rate, including age, body temperature, posture, acute pain, chemical influences,...
2.0K