相关实验视频
Updated: May 15, 2026

06:14
Translational Rabbit Model of Chronic Cardiac Pacing
Published on: January 6, 2023
儿童永久性心脏节拍:选择最佳节拍地点:一个多中心研究
Jan Janoušek1, Irene E van Geldorp, Sylvia Krupičková
1Children's Heart Center, University Hospital Motol, V Úvalu 84, 150 06 Prague 5, Czech Republic. jan.janousek@lfmotol.cuni.cz
Circulation
|January 1, 2013
概括
心室节奏的位置显著影响左心室 (LV) 功能和儿童的同步. 加快LV顶部或中侧壁的节奏为保持心脏功能提供了最好的结果.
科学领域:
- 儿童心脏病学 儿童心脏病学
- 电子生理学 电子生理学
- 心脏机械学 心脏机械学
背景情况:
- 需要永久节奏的儿童往往有心房静脉阻塞和结构正常的心脏.
- 对于心室节拍部位对左心室 (LV) 功能和儿科人群同步性的影响尚未完全理解.
研究的目的:
- 评估不同心室节奏位如何影响儿童的LV同步和功能.
- 确定最佳的节奏点,以保持心脏功能,在需要永久节奏的儿科患者.
主要方法:
- 来自21个中心的178名儿童 (<18岁) 的横截面研究.
- 节奏部位的分析,包括右心室 (RV) 外流通道,RV侧壁,RV顶部,RV隔膜,LV顶部,LV中侧壁和LV底部.
- 评估LV同步,功能和收缩效率与节奏点的关系.
主要成果:
- 节拍部位显著影响了LV同步,功能和收缩效率.
- 在LV顶部或LV中侧壁的节奏显示出优异的LV同步和功能.
- 从RV输出通道/侧面RV的节奏与显著下降的LV功能有关 (LV射出分数<45%).
- 乳顶部/乳中侧壁节奏与保存的乳功能有关 (乳喷射率≥55%).
- LV 不同步与 LV 喷射率相反相关 (R=0.80,P=0.031).
结论:
- 在需要终身节奏的儿童中,心室节奏部位极大地影响机械同步,效率和功能.
- 节拍LV顶部或LV中侧壁具有最大的潜力,可以防止节拍诱导的心脏功能的减少.
- 优化节拍部位选择对于儿科患者的长期心脏健康至关重要.
相关概念视频
Pulse rhythm
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 muscle...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...
Cardiac Catheterization II: Right Heart Catheterization
Right Heart Catheterization: An OverviewRight heart catheterization is an invasive diagnostic procedure that measures right-sided cardiac and pulmonary artery pressures, calculates cardiac output, and identifies intracardiac shunts. It provides detailed hemodynamic data essential for diagnosing and managing various cardiovascular conditions, such as pulmonary hypertension.Access SitesCommon access sites for right heart catheterization include the internal jugular vein in the neck region, the...

