使用对比剂对前面平面QRS-T角度的影响在接受选择性冠状动脉血管造影的患者中
Barış Açıkel1, Metin Karayakalı2, Fuat Bice3
1Department of Cardiology, Tokat State Hospital, Tokat, Turkey.
Journal of electrocardiology
|July 16, 2025
概括
在冠状动脉血管学中使用的对比介质在患有稳定性胸痛的患者中稍微增加了前面平面QRS-T角度. 这种变化虽然显著,但并没有达到病态水平或引起危险的心律失常.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 医疗成像医学成像
背景情况:
- 冠状动脉血管学中的对比介质可以改变心肌电生理学,影响心电图 (ECG).
- 从表面心电图中得出的正面平面QRS-T (fQRS-T) 角度,表明心室再极化异质性,并预测心律失常.
- 评估fQRS-T血管造影后的角度变化对于理解对比介质影响至关重要.
研究的目的:
- 为了评估对比剂给药对fQRS-T角度的影响.
- 为了在接受选择性冠状动脉血管造影的稳定性心痛患者中研究这种效应.
主要方法:
- 包括343名患有稳定心痛的患者,接受了选择性冠状动脉血管学.
- 记录的人口统计数据和风险因素.
- 在使用对比剂之前和之后,从ECG中计算fQRS-T角度,并记住注射的对比剂量.
主要成果:
- 参与者的平均年龄为57.03±9.10岁,其中53.9%是男性.
- 在使用对比介质后观察到fQRS-T角度的统计显著增加 (30.04 ± 30.76 vs 33.87 ± 32.6, p < 0.001).
结论:
- 施用对比物质导致fQRS-T角度的统计学上显著增加.
- 尽管增加了,但fQRS-T角仍然低于病理极限.
- 在研究队列中没有观察到危及生命的心室心律不整.
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