在患有左心室功能障碍的患者中进行心房再极化
Neha Pulath1, Ramanathan Velayutham1, Anish Bhargav1
1Department of Cardiology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
在患有左心室功能障碍的患者中,心房再极化 (Ta波) 分散增加. 这一发现可能表明这些人心房律乱的风险增加.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 心脏成像 - - 心脏成像
背景情况:
- 前庭脱极化 (P波) 和再极化 (Ta波) 是心电图的关键组成部分.
- 塔波通常被QRS复合体遮蔽,但在三度AV阻塞中可见.
- 以前没有研究左心室功能障碍中的心房再极化.
研究的目的:
- 在左心室功能障碍患者中研究心房再极化特征.
- 为了比较正常和减少喷射分数的患者之间的PTa波参数.
主要方法:
- 研究了患有第三级心血管阻塞和起器的患者.
- 将患者分为正常 (LVEF ≥55%) 和减少 (LVEF ≤40%) 喷射分数组.
- 在VVI节拍过程中分析了PTa段的持续时间,振幅,轴和ECG的分散.
主要成果:
- 两组之间没有PTa波长,振幅或轴的显著差异.
- 与正常喷射分数组 (54 ± 14 ms) 相比,减少喷射分数组 (74 ± 21 ms) 的PTa分散显著更高.
结论:
- 左心室功能障碍不会改变PTa波幅,持续时间或轴.
- 在左心室功能障碍中增加的PTa分散可能作为心房律乱风险升高的标志物.
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