在患有急性缺血性中风的患者中,静止状态和压力挑战期间的血压变化
Sankanika Roy1, Man Y Lam1, Ronney B Panerai1,2
1Department of Cardiovascular Sciences, University of Leicester.
Blood pressure monitoring
|June 6, 2024
概括
即使在日常活动中,急性缺血性中风患者也会表现出高血压变化 (BPV) 和降低巴罗反射灵敏度 (BRS). 这表明自主功能障碍,可能会影响中风后的生活质量.
科学领域:
- 心血管生理学心血管生理学
- 神经学 神经学
- 自主神经系统功能 自主神经系统功能
背景情况:
- 患有急性缺血性中风 (AIS) 的患者在中风后的几天内表现出高血压变化 (BPV) 和降低腹回应灵敏度 (BRS).
- 这些生理变化发生在休息状态下,可能会影响恢复和生活质量.
研究的目的:
- 在压力挑战演习期间评估AIS患者的BPV和BRS.
- 为了将AIS患者与急性和亚急性中风阶段的健康对照进行比较.
主要方法:
- 在15名AIS患者和15名对照组中记录了持续的节拍血压 (BP) 和心电图.
- 测量是在休息状态和快速头部定位 (RHP) 模式下在急性 (24小时内) 和亚急性 (7天) 阶段进行的.
- 计算了低频 (LF) SBP功率 (BPV) 和巴罗反射灵敏度 (BRS) 指数 (LF-α,α-指数).
主要成果:
- 在急性阶段,AIS患者的静止LF-SBP功率高,α指数低于对照组.
- 在RHP期间,AIS患者的LF-SBP没有增加,与表现出显著增加的对照组不同.
- 在亚急性阶段,AIS患者的静止α指数有所改善,LF-SBP下降,但在RHP期间仍然缺乏显著的BPV反应.
结论:
- 患有AIS的患者表现出高静止BPV和对RHP等压力挑战的模糊反应.
- 这表明AIS后持续的自主功能障碍.
- 自主调节受损可能导致AIS患者的生活质量下降.
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