绘制未来:指挥电图参数的预测值,用于主动固定无心脏起器的节奏性能.
Takehiro Nomura1, Kosuke Onodera1, Daiki Kumazawa1
1Heart Rhythm Center, Department of Cardiovascular Medicine, Sendai Kosei Hospital, Sendai, Miyagi, Japan.
Heart rhythm O2
|October 31, 2025
概括
像损伤电流和QRS振幅这样的指挥电图 (cEGM) 可以预测Aveir VR无心脏起器植入后的中期节奏捕捉值 (PCT). 这些电图参数可以指导固定策略,以获得更好的结果.
科学领域:
- 心脏病学 心脏病学
- 医疗器械 医疗器械
- 电子生理学 电子生理学
背景情况:
- 使用Aveir VR技术的无心脏起器植入依赖于指挥电图 (cEGM) 来评估固定部位的适用性.
- 关于cEGM在植入后节奏捕获值 (PCT) 的预测值和最佳切断值的临床数据有限.
研究的目的:
- 调查Aveir VR植入后中期节奏捕捉值 (PCT) 和cEGM参数之间的关联.
- 为了确定cEGM参数的预测值,以成功固定心脏起器.
主要方法:
- 74名接受Aveir VR植入的患者的回顾性分析,具有可分析的cEGM数据.
- 在预映射和绑定模式下测量cEGM参数 (QRS振幅,持续时间,损伤电流).
- 相关性和接收器运行特征分析以确定预测高PCT (>1.5 V/0.4 ms) 的最佳切断值.
主要成果:
- 目前的损伤 (COI) 和QRS振幅与PCT有显著的相关性.
- 最佳的COI截止值为>2.0mV (AUC 0.668-0.715),与较高的PCT相关.
- 最佳的QRS振幅截止值为>5.0mV (重新绘制) 和>4.0mV (绑定) (AUC 0.771-0.840),强烈预测升高的PCT.
结论:
- 预固定cEGM参数,特别是COI和QRS振幅,是Aveir VR植入后中期PCT的有价值预测指标.
- 使用这些电图参数可能会增强无心脏起器固定策略,并提高程序的成功.
相关概念视频
01:28Electrocardiogram Fundamentals
1.4K
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...
1.4K
01:29Electrocardiogram
5.3K
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...
5.3K
01:19Electrophysiology of Normal Cardiac Rhythm
8.7K
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...
8.7K
01:30Pulse rhythm
1.3K
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
1.3K