右和左心房的表面心电学特征
Andres Bochoeyer1, Yanfei Yang, Jie Cheng
1Cardiovascular Research Institute and Section of Cardiac Electrophysiology, University of California, San Francisco 94143-1354, USA.
Circulation
|July 2, 2003
概括
描述了非洞心脊柱支架 (CTI) 依赖性心房动 (AFL) 的表面心电图模式. 一些右心房 (RA) 的模式可以是CTI依赖的,而上环再入模仿时针方向的CTI AFL.
科学领域:
- 电子生理学 电子生理学
- 心脏病学 心脏病学
- 医疗成像医学成像
背景情况:
- 对于非心脉 (CTI) 依赖的右心房 (RA) 和左心房 (LA) 飞电路的表面心电图 (ECG) 特征的理解有限.
- 需要更明确的诊断标准来区分各种心房 (AFL) 机制.
研究的目的:
- 调查和描述与非CTI依赖的RA和LA飞电路相关的表面心电图模式.
- 将这些模式与已知的CTI依赖的AFL (反时钟方向[CCW]和时钟方向[CW]) 进行比较,以确定区分特征.
主要方法:
- 追溯分析了32例非典型的RA飞和22例LA飞事件,分别在26和21名患者中进行.
- 对表面心电图特征的评估,包括激活序列和引线偏移,与特定的飞电路相关 (下环再入,上环再入,隔膜,其他LA电路).
主要成果:
- 下环回入RA飞显示了类似于CCW CTI AFL的ECG图案,但在下线线下降了终端力.
- 上环重新进入RA飞 (7/8集) 模仿了CW CTI AFL.
- LA隔膜回路 (11名患者) 呈现出突出的V1力和其他地方的平面偏移.
- 其他LA电路 (11名患者) 与CCW CTI AFL相比,具有较低的低电压变量模式.
结论:
- 与CCW或CW CTI AFL不同的右心房的模式仍然可以依赖于CTI.
- 上环回入显示了一致的CW CTI AFL表面模式,并且不依赖于CTI.
- 左心房电路通常表现出平面或低幅度的劣质力.
相关概念视频
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Parts of an ECG
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