概括
这项研究分析了18名患有心室高心率或动的年轻患者,发现严重的心脏病通常伴随着这些心律失常. 一些病例通过抗心律失常疗法得到解决,突出显示了儿科心律失常管理的不同结果.
科学领域:
- 儿童心脏病学 儿童心脏病学
- 心脏电生理学 心脏电生理学
- 节律失常学 节律失常学
背景情况:
- 腹腔动脉短拍 (VT) 和腹腔动 (VF) 是年轻患者的严重心律失常.
- 相关的疾病包括心肌透,心肌病,心肌炎,延长的QT综合征和低血.
- 一些年轻患者出现了VT/VF,没有可识别的心脏异常.
研究的目的:
- 描述一组被诊断患有心室动脉冲动和/或心室的年轻患者的临床发现和结果.
- 调查这些心律失常的电生理学特征和潜在触发因素.
- 确定与预后相关的因素,包括潜在心脏病的存在和对治疗的反应.
主要方法:
- 对18名年轻患者 (4天至24岁) 进行了回顾性分析,这些患者患有VT/VF.
- 随访时间从4个月到70个月不等.
- 在一些患者身上进行了电生理学研究,以评估心律失常的诱导性和终止性.
主要成果:
- 静脉瘤形态经常显示左捆分支阻塞模式 (10/17名患者).
- 在电生理学研究期间,在没有自发发作的7名患者中,有3名持续静脉瘤可诱导.
- 患有VF,死亡率或控制不良的心律失常的患者通常具有显著的潜在心脏病.
结论:
- 患有VT/VF的年轻患者表现出不同的临床表现和潜在病因.
- 电生理学研究可以帮助理解心律失常机制和指导管理.
- 显著的心脏病的存在是儿童静脉结/静脉结的预后的一个关键因素.
相关概念视频
01:29Disturbances in Heart Rhythm
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...
01:15Dysrhythmias I: Introduction
Dysrhythmias refers to abnormalities in the heart's rhythm. They result from disruptions in the heart's electrical conduction system, which includes the sinoatrial(SA)node, atrioventricular(AV) node, the bundle of His, bundle branches, and Purkinje fibers.Definition and PathophysiologyDysrhythmias result from disorders of impulse formation, impulse conduction, or both. The heart contains specialized cells in the sinoatrial node, atrioventricular node, and the bundle of His and Purkinje fibers...
01:28Dysrhythmias II: Classification of Tachyarrhythmias
Tachyarrhythmias are a type of dysrhythmia where the heart rate exceeds 100 beats per minute. Here are some common types of tachyarrhythmias:Sinus TachycardiaSinus tachycardia originates from increased impulses from the sinus node, leading to an elevated heart rate. It is often triggered by stress, fever, or exercise.Patients may experience palpitations, a sensation of a racing heart, dizziness, and chest discomfort.Causes and Risk Factors: Common causes include physical exertion, emotional...
01:29Dysrhythmias III: Characteristics of Dysrhythmias
Dysrhythmias, also known as arrhythmias, are irregular heart rhythms that result from abnormal electrical activity in the heart, affecting its ability to circulate blood efficiently. Tachyarrhythmias, a subset of dysrhythmias, are characterized by abnormally fast heart rates exceeding 100 beats per minute. Here are some types of tachyarrhythmias with their distinct ECG features:Sinus Tachycardia:Sinus tachycardia presents a regular heart rhythm with an increased rate of 101-180 beats per minute.
01:18Dysrhythmias IV: Characteristics of Bradyarrhythmias
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...
01:25ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias
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...