作为对心脏再同步治疗 (CRT) 反应指标的QRS复合体持续时间和区域
Amir Farjam Fazelifar1, Zahra Ghaffarinejad1, Hamed Hesami2
1Cardiac Electrophysiology Research Center, Rajaie Cardiovascular Institute, Tehran, Iran.
Pacing and clinical electrophysiology : PACE
|October 21, 2025
概括
心脏再同步疗法 (CRT) 显著减少了心力衰竭患者的QRS持续时间和领先V5的面积,症状有所改善. 这些心电图变化在领先V5中最为明显,突出显示了它在评估CRT有效性的重要性.
科学领域:
- 心脏病学 心脏病学
- 电力生理学 电力生理学
- 医疗器械 医疗器械
背景情况:
- 心力衰竭 (HF) 经常导致电失调,由扩大的QRS复合体证明.
- 心脏再同步疗法 (CRT) 是一种旨在改善心室同步和整体心脏功能的治疗方法.
- 了解与CRT反应相关的特定心电图 (ECG) 变化对于优化患者结果至关重要.
研究的目的:
- 在CRT后的心力衰竭患者中比较QRS复杂的持续时间和面积.
- 为了确定症状缓解和没有症状缓解的患者之间的ECG参数差异.
- 提高对影响CRT结果的因素的理解.
主要方法:
- 这项研究包括203名心力衰竭患者,他们患有左捆支部阻塞 (LBBB) 和左心室排气分数 (LVEF) 减少,接受了CRT.
- 关于QRS持续时间和区域的数据从电子医疗记录中收集了CRT植入前和后的数据.
- 使用IBM SPSS Statistics 27.0进行统计分析,显著程度为p < 0.05.
主要成果:
- 在领先的V5中,CRT后的QRS持续时间显示了两组之间的统计学上显著差异 (p = 0.015).
- 虽然没有达到统计学意义 (p = 0.069),但QRS复杂区域在V5中也表明了患者组之间的差异.
- 在CRT后报告症状改善的患者中,QRS持续时间和领先V5的面积都显着较低.
结论:
- 在CRT后的QRS持续时间和领先V5的面积在症状改善的患者中显著下降.
- 在其他ECG线索中没有观察到统计学上显著的变化,这表明CRT的特异性影响.
- 建议对更大的队列进行进一步的研究,以验证这些特定于的发现及其临床影响.
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