在运动后PQ间隔延长的运动员中,在心室去极化期间绘制身体表面潜在映射
Natalya I Ivonina1, Alexey G Ivonin1, Irina M Roshchevskaya1
1Department of Comparative Cardiology - Komi Science Centre of the Ural Branch of the Russian Academy of Sciences, Syktyvkar - Federação Russa.
Arquivos brasileiros de cardiologia
|March 7, 2024
概括
运动员长时间PQ间隔显示在身体表面潜力映射 (BSPM) 上明显的腹腔脱极化模式. 运动使这些差异中的一些变得正常化,这表明这些运动员的内腔导电发生了变化.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 运动医学 运动医学
背景情况:
- 延长的PQ间隔表明心导电延迟.
- 这种延迟可能与心室内脉冲传播异常有关.
研究的目的:
- 使用身体表面电位映射 (BSPM) 评估心室脱极化.
- 为了比较运动员的延长PQ间隔与在休息和运动后的正常PQ间隔.
主要方法:
- 包括7名越野滑雪运动员,PQ间隔长 (>200毫秒) 和7名PQ间隔正常 (<200毫秒).
- 使用64个单极干线进行的身体表面潜力映射 (BSPM),在运动前后进行.
- 在心室脱极化过程中对身体表面等电位图进行分析.
主要成果:
- 长时间使用PQ的运动员表现出延迟的心脏潜能稳定和晚些时候在休息状态下""潜能形成.
- 运动后,长时间PQ运动员表现出缩短的稳定期和更早的""现象,接近正常PQ值.
- 在PQ延长运动员中,心室脱极化持续时间和第一次反转在运动后减少,匹配正常PQ值,而第二次反转持续时间更长.
结论:
- 在延长PQ和正常PQ运动员之间存在心室脱极化的显著时间差异.
- 这些由BSPM评估的差异存在于休息状态和运动后.
- 运动会影响心室脱极化的时间特征,在运动员中,PQ间隔延长.
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