在非典型的心房流动中,双循环重新进入的解剖学和电生理学特征:对映射和导管切除的影响
Nicolas Johner1, Mehdi Namdar1, Dipen C Shah1
1Cardiology Division, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1205 Geneva, Switzerland.
Journal of clinical medicine
|May 25, 2024
概括
超过一半的非典型心房 (AFL) 病例涉及复杂的双循环重新进入. 在导管切除过程中准常见地峡,显著提高了这些心律失常的终止率.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 医疗器械 医疗器械
背景情况:
- 非典型的心房 (AFL) 带来了切除挑战,特别是在双循环回入电路中.
- 了解AFL机制对于有效的导管切除策略至关重要.
研究的目的:
- 描述单环和双环AFL的电解剖学特征.
- 评估导管切除的成功率,针对AFL的不同地峡.
主要方法:
- 在19名患者中分析了25个非洞穴柱支柱支柱依赖性宏观复发性AFL.
- 使用3D高密度激活映射和引进映射来确认重新进入循环.
主要成果:
- 在52%的AFL病例中,出现了双循环再入.
- 常见的双循环电路涉及周边再入或右肺静脉 (PV) 骨.
- 在双环AFL的共同地峡或单环AFL的关键地峡的切除实现了较高的终结率 (83%和73%) 与二次地峡 (13%).
结论:
- 双循环重新进入是非典型的AFL中常见的机制.
- 确定的关键脉包括 mitra,左心房屋顶和右PV骨架.
- 在双环AFL中准共同的峡谷提供了优异的切除结果.
更多相关视频
09:13Remote Magnetic Navigation for Accurate, Real-time Catheter Positioning and Ablation in Cardiac Electrophysiology Procedures
Published on: April 21, 2013
27.9K
06:57Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction
Published on: January 31, 2019
14.7K
相关概念视频
01:28Disturbances in Heart Rhythm
936
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...
936
01:28Mechanism of Cardiac Arrhythmias
912
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.
912
01:30Cardiac Action Potential
1.3K
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
1.3K