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相关概念视频

Electrocardiogram01:29

Electrocardiogram

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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...
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Pulse rhythm01:30

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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...
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与步调QRS复合体相比,非侵入式电气映射用于优化CRT编程设置和预测多维响应.

Frances L Morales1, Derek J Bivona1, Mohamad Abdi1

  • 1University of Virginia Health System, Charlottesville, VA, 22901, USA.

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概括

身体表面电图准确地预测心脏再同步治疗 (CRT) 的成功. 这种3D绘图方法可以确定最佳节奏策略,从而改善CRT治疗患者的心脏功能和结果.

关键词:
心脏磁共振是一种心脏磁共振.心脏再同步治疗心脏再同步治疗电气映射绘制电气映射心脏衰竭是因为心脏衰竭.右心室功能的功能

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科学领域:

  • 心脏病学 心脏病学
  • 医疗成像医学成像
  • 电子生理学 电子生理学

背景情况:

  • 心脏再同步治疗 (CRT) 是心力衰竭的关键治疗方法.
  • 优化CRT节奏策略仍然是一个挑战.
  • 预测患者对CRT的反应对于改善结果至关重要.

研究的目的:

  • 评估身体表面电图是否可以确定最佳的CRT节奏策略.
  • 为了确定电气映射是否预测CRT结果.
  • 评估电气激活时间和心脏功能之间的相关性.

主要方法:

  • 在30名患者身上使用252个电极背心 (CardioInsight) 进行身体表面电图绘制.
  • 定义的左心室 (LV),右心室 (RV) 和双心室 (BIV) 电激活时间 (LV80,RV80,BIV80).
  • 与CRT后的心脏功能,心肌氧吸收和B型尿素 (BNP) 水平相关联的电映射参数.

主要成果:

  • 在LV80和RV80中较小的差异 (RV80-RV80) 与同步的LV节奏预测了CRT后更好的LV功能.
  • 较低的RV80与更好的CRT前RV喷射率相关,并预测CRT后心肌氧吸收改善.
  • 较低的LV80与BIV节奏预测了较低的CRT后BNP水平,表明心脏功能有所改善.

结论:

  • 三维电图有效地预测了CRT后有利的结果.
  • 电气映射为定制有效的CRT节奏策略提供了宝贵的见解.
  • 这种非侵入性映射技术为优化CRT治疗提供了一个有希望的方法.