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相关概念视频

Dysrhythmias IV: Characteristics of Bradyarrhythmias01:18

Dysrhythmias IV: Characteristics of Bradyarrhythmias

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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...
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ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

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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...
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Mitral Stenosis II: Clinical features and Diagnostic Tests01:23

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Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...
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Venous thrombosis, the most common disorder of the veins, involves the formation of a thrombus or blood clot associated with vein inflammation. It can be classified as either superficial vein thrombosis or deep vein thrombosis.Superficial Vein Thrombosis: This involves the formation of a thrombus in a superficial vein, usually the greater or lesser saphenous vein. Though less severe than deep vein thrombosis (DVT), SVT can lead to complications if untreated.Deep Vein Thrombosis (DVT): This...
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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.
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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
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在非膜性心肌中,心房间间隔阻断可预测左心房

Elmas Kaplan1, Firdevs Aysenur Ekizler2, Halenur Saribas3

  • 1Department of Cardiology, Cankırı State Hospital, Cankırı, Turkey.

Journal of electrocardiology
|September 5, 2025
PubMed
概括

在非膜性心肌 (NVAF) 患者中,心房间间隔阻塞 (IAB) 与左心房附属体 (LAA) 血栓有关. 这种心电图可能有助于识别患血栓风险较高的人.

关键词:
前庭动贝耶综合征间阻塞左心房附属体血栓发生

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科学领域:

  • 心脏病学
  • 电生理学
  • 医疗诊断

背景情况:

  • 间阻塞 (IAB) 表示心房导电延迟和重塑.
  • IAB与心房动 (AF) 和血栓塞栓事件有关.
  • IAB对左心房附属体 (LAA) 血栓的预测作用尚未得到充分证实.

研究的目的:

  • 调查IAB和LAA血栓存在之间的关联.
  • 在接受节律控制手术的非膜肌肉功能炎 (NVAF) 患者中,评估IAB作为LAA血栓的预测因子.

主要方法:

  • 在节律控制之前对750名NVAF患者进行过食道心声扫描 (TEE) 的回顾性观察研究.
  • 从12导心电图分析的P波参数;IAB根据共识标准定义.
  • 用于确定LAA血栓的独立预测因子的多变量逻辑回归.

主要成果:

  • 在10. 8%的患者中检测到LAA血栓.
  • 患有血栓的患者年龄较大,风险得分较高,中风较多,LVEF较低.
  • IAB (OR: 2. 698; p=0. 008),较大的LA直径,较低的LVEF和P波分散独立预测血栓.

结论:

  • 在NVAF患者中,间阻塞是LAA血栓的独立预测因子.
  • IAB可以作为一种非侵入性标志物来识别患有血栓塞栓风险增加的患者.
  • 这些发现可以指导在节律控制干预之前对TEE的需求.