まとめ
この研究では,静脈動脈短縮症または動症の18人の若い患者を分析し,これらの心律不整症にはしばしば重大な心疾患が伴うことが判明しました. 一部の症例は抗不律性療法で解決し,小児不律性管理におけるさまざまな結果を強調しています.
科学分野:
- ペディアトリック・カルディオロジー
- 心臓電気生理学 心臓電気生理学
- アリトモロジー アリトモロジー
背景:
- Ventricular tachycardia (VT) と ventricular fibrillation (VF) は,若年患者における深刻な心律異常である.
- 関連する症状には,ミトラル弁の転倒,心筋病,心筋炎,長時間QT症候群,低血量症が含まれます.
- 特定可能な心臓異常なしのVT/VFを呈する若い患者もいる.
研究 の 目的:
- 静脈性心拍動症および/または静脈性動症と診断された若い患者のコホートにおける臨床的発見およびアウトカムを記述する.
- これらの心律乱の電気生理学的特徴と潜在的なトリガーを調査する.
- 根本的な心臓病の存在と治療への反応を含む予後に関連する要因を特定する.
主な方法:
- VT/VFの18人の若い患者 (4日~24歳) の遡及的分析.
- フォローアップの期間は4ヶ月から70ヶ月でした.
- 電気生理学的な研究は,いくつかの患者に,心拍不良の誘導性と終止を評価するために実施されました.
主要な成果:
- 静脈経路の形態学では,しばしば左束の分岐ブロックパターン (10/17人の患者) が示された.
- 持続性VTは,電気生理学的研究中に自発的なエピソードのない7人の患者のうち3人に誘発可能であった.
- 静脈動脈不全,死亡率,または制御不良の不律症の患者は,一般的に,重大な心臓病を患っていた.
結論:
- VT / VFの若い患者は,さまざまな臨床表現と基礎となる病因を示しています.
- 電気生理学的研究は,心拍不全のメカニズムを理解し,管理を導くのに役立ちます.
- 重要な心臓病の存在は,小児性VT/VFの予後において重要な要因である.
関連する概念動画
Disturbances 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...
Dysrhythmias 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...
Dysrhythmias 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...
Dysrhythmias 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.
Dysrhythmias 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...
ECG 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...


