排泄引起的潜力 (DEEP) 映射房:揭示房动基质
Oscar Salvador Montañés1, John L Fitzgerald2, Nicholas Jackson3
1Hospital Universitario Quirónsalud Madrid, Spain; Hospital Universitario de Torrejón, Madrid, Spain; Universidad Francisco de Vitoria, Departamento de Medicina, Madrid, Spain.
Heart, lung & circulation
|August 27, 2023
概括
排泄物唤起的潜在映射 (DEEP) 识别了在心房动 (AF) 中容易重新进入的区域. 这些DEEP区域在持续性AF中更为常见,并通过心表节奏检测,有助于理解心房肌病.
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:
- 心房肌病症有助于心房动 (AF) 的进展和较差的废除结果.
- 电生理学测绘可以揭示易受重新进入启动的区域,这对于诊断潜在心房肌病症至关重要.
研究的目的:
- 评估分泌引起潜能 (DEEP) 地图的实用性,用于识别易于重新进入心脏的心房区域.
- 为了比较不同心房区域和患者亚组 (持久性和性AF) 中DEEP特征的患病率.
主要方法:
- 在四个机构中,有74名接受AF切除术的患者的潜在纳入.
- 在13个心房部位使用内心和心表节奏进行了液唤起潜力 (DEEP) 映射.
- 在额外的刺激后,分析电图以确定局部延迟,以确定DEEP属性.
主要成果:
- 9%的分析电图表表现出DEEP特性,表明局部延迟.
- 在左心房中,DEEPs比右心房更频繁,并且在持久性AF患者中更为普遍.
- 在正常电压区域,特别是左心房顶部,表心节奏和映射更有效地揭露了DEEPs.
结论:
- 深度映射有效地突出了倾向于单向阻塞和重新进入启动的心房区域.
- 来自冠状动脉鼻的表皮节奏对于揭露DEEPs来说是卓越的.
- DEEP区域在持续性AF中更为普遍,这表明它在疾病进展中发挥了作用.
相关概念视频
01:30Cardiac Action Potential
1.6K
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
1.6K
01:25ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias
42
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...
42
01:19Electrophysiology of Normal Cardiac Rhythm
5.8K
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...
5.8K