通过使用各种电生理学方法,评估左枝节奏和左隔膜节奏中的心室电异质性
Jesse H J Rijks1, Luuk Heckman2, Sjoerd Westra3
1Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center+ (MUMC+), Maastricht, The Netherlands.
Journal of cardiovascular electrophysiology
|September 24, 2024
概括
左枝区域节奏 (LBBAP),包括左心室隔膜节奏 (LVSP) 和左枝节奏 (LBBP),与右心室节奏相比,显著降低了心室电异质性. LBBP实现了与正常内在导电相似的同步水平.
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:
- 左束枝区域节奏 (LBBAP) 涉及左心室隔膜 (LVSP) 或左束枝 (LBBP) 的节奏.
- 心室电异质性和异步是心脏功能和节奏结果的关键因素.
研究的目的:
- 在LVSP,LBBP,右心室节奏 (RVP) 和内在导电期间比较心室电异质性.
- 评估不同测量异步,包括心电图,心电图,心电带和超高频心电图.
主要方法:
- 三十七名患者接受了LBBAP治疗白心脏或CRT.
- 在RVP,LVSP,LBBP和内在激活期间记录了ECG,矢量心电图,ECG带和UHF-ECG信号.
- 测量包括QRS持续时间,QRS面积,LV激活时间 (LVAT),激活时间的标准偏差 (SDAT) 和电动异步 (e-DYS16).
主要成果:
- 与LBBB和RVP相比,LVSP和LBBP在多个参数 (QRS区域,SDAT,LVAT,e-DYS16) 上显著降低了心室电异质.
- 与RVP相比,QRS持续时间仅减少.
- LBBP显示QRS面积类似于内在导电,而LVSP显示e-DYS16类似于内在导电. 在LVSP,LBBP和内在导电中,SDAT是相似的.
结论:
- LBBAP (LVSP和LBBP) 促进了比LBBB和RVP更同步的左心室激活.
- 特别是LBBP,可以恢复左心室同步到与正常内在导电相当的水平.
更多相关视频
08:19Electrophysiological Assessment of Murine Atria with High-Resolution Optical Mapping
Published on: February 22, 2018
9.8K
12:45Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
Published on: December 11, 2017
10.4K
相关概念视频
01:28Electrocardiogram Fundamentals
543
Introduction
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
543
01:29Electrocardiogram
2.2K
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
2.2K
01:19Electrophysiology of Normal Cardiac Rhythm
2.3K
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...
2.3K