在状细胞患者中,脑血管和心血管自主调节具有白质病变
Christophe Ferreira De Matos1, Pierre Cougoul1, Oana Maria Zaharie2
1Internal Medicine Department-IUCT Oncopole, Toulouse, France.
European journal of neurology
|January 2, 2024
概括
在状细胞疾病 (SCD) 中,白质病变 (WMLs) 与降低的副交感活动和大脑动脉合规性受损有关. 这些发现可能有助于了解SCD患者的脑血管过早衰老.
科学领域:
- 神经学 神经学
- 心脏病学 心脏病学
- 血液学 血液学 血液学
背景情况:
- 白质病变 (WMLs) 在状细胞病 (SCD) 中很常见,在30岁时影响高达53%的人.
- 在SCD中,脑血管和心血管自主调节,包括交 - 阴道平衡,可能会发生变化.
- 在SCD中,WMLs,脑血管调节和交感-阴道平衡之间的关系需要进一步研究.
研究的目的:
- 在没有中风病史的成年SCD患者中评估WMLs,脑血管调节和交 - 阴道平衡之间的关联.
主要方法:
- 对41名SCD患者的前性评估 (25名女性/16名男性,中位数年龄37.5岁,70.7%的SS基因型).
- 通过屏息测试 (BHT) 评估的脑血管反应性.
- 使用心率变化和跨的多普勒超声波评估的交感-阴道平衡 (低频/高频比 [HF]) 和大脑自调 (Mx指数).
- 通过持续监测大脑血流速度和动脉血压来评估大脑动脉合规性.
- 使用MRI (Fazekas分数和缺口) 量化WMLs.
主要成果:
- 11名患者 (26.8%) 患有WML,并且年龄明显大 (p < 0.001).
- 患有WML的患者表现出较低的HF (p < 0.005),表明降低了副交感活动.
- 在WMLs患者中也观察到脑动脉合规性受损 (p < 0.014).
- 包括年龄和HF在内的回归模型显示,与单独年龄 (AUC 0.876) 相比,WMLs的预测值 (AUC 0.946) 更高.
- 两组之间BHT和Mx指数没有显著差异.
结论:
- 降低的副交感活动和大脑动脉合规性受损与SCD成年人的WML有关.
- 这些发现有助于理解SCD中早期大脑血管衰老背后的病理生理机制.
- 进一步的研究可以探索针对SCD的自主功能障碍和血管健康的治疗策略.
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