高血压中的微循环:预防心血管疾病的治疗目标?
Damiano Rizzoni1, Claudia Agabiti-Rosei1,2, Gianluca E M Boari3
1Department of Clinical and Experimental Sciences, University of Brescia, 25121 Brescia, Italy.
Journal of clinical medicine
|August 12, 2023
概括
高血压导致血管重塑,增加介质与光线比率 (MLR) 并损害血液流动. 这些微血管变化与器官损伤和心血管事件有关,但可能会随着治疗而改善.
科学领域:
- 心血管研究研究心血管研究
- 腎臟病學 (nephrology) 是一種醫學專業.
- 眼科医生 眼科 眼科
背景情况:
- 动脉高血压是一个全球性的健康问题,显著增加心血管和脑血管事件,脏疾病和眼睛疾病的风险.
- 已确定的高血压会诱导慢性血管收缩和小动脉的血管重塑,其特点是流体直径降低和动脉壁加厚,导致媒体与流体比率 (MLR) 增加.
- 这种血管重塑,最初通过微肌图进行评估,现在被理解为具有重大预后影响的概括现象.
研究的目的:
- 审查高血压中的结构性微血管变化与高血压介导的器官损伤之间的关系.
- 探索抗高血压治疗的潜力,以改善这些微血管变化.
- 强调微血管改造在心血管和脑血管事件中的预后相关性.
主要方法:
- 微米图用于评估小阻力动脉的结构变化 (黄金标准).
- 新兴的非侵入性技术,如扫描激光多普勒流量计和自适应光学,用于评估视网膜动脉中的壁对光线比率 (WLR).
- 对报告高血压患者毛细血管网络稀缺的研究进行分析.
主要成果:
- 小动脉中MLR/WLR增加会损害器官的血液流量储备,导致高血压疾病的进展和器官损伤.
- 视网膜微血管WLR已经证明了对心血管和脑血管事件的预后价值.
- 高血压的毛细血管稀疏可能会减少组织的氧气输送,可能会导致器官损伤和功能障碍.
结论:
- 微血管变化,包括重塑和稀疏,是高血压中介器官损伤的早期指标.
- 这些微血管变化在高血压相关并发症的发展和进展中起着至关重要的作用.
- 通过抗高血压治疗监测和改善微血管结构有望改善患者的治疗结果.
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