静止血压下降率与主要心血管不良事件之间的关系
Wenqin Cai1,2,3,4,5, Yuexian Yao6, Suli Zheng1,2
1Department of Geriatrics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China.
Journal of clinical hypertension (Greenwich, Conn.)
|May 10, 2025
概括
静止性低血压 (OH) 是当站立时血压下降. 较快的下降率,定义为静脉血压下降≥15%或静脉血压下降≥5%,预测了住院患者的主要不良心血管事件和死亡率.
科学领域:
- 心脏病学 心脏病学
- 临床医学 临床医学
- 高血压研究 高血压研究
背景情况:
- 正静性低血压 (OH) 的特点是站立后3分钟内血压显著下降.
- 现有的研究将OH与重大心血管不良事件 (MACE) 和死亡率的风险增加联系起来.
- 对于MACE和死亡率,静态血压 (BP) 降低率的预后价值仍然未被探索.
研究的目的:
- 调查正静性血压 (BP) 降低率与MACE和死亡率的风险之间的关系.
- 建立基于血压下降率的OH新诊断值.
- 评估针对心血管不良结果的建议OH诊断标准的预测准确性.
主要方法:
- 一组448名住院患者,随访时间中位数为5.09年.
- 患者被分为高 (静心血压下降率≥15%和/或静心血压下降率≥5%) 和正常的血压下降率组.
- 统计分析包括千平方测试,卡普兰-梅尔生存分析,ROC分析和考克斯回归.
主要成果:
- 高血压下降率组与正常血压下降率组相比,对MACE和死亡率的风险明显更高 (p < 0.05).
- 建议的诊断值 (静脉血压下降≥15%和/或静脉血压下降≥5%在3分钟内) 显示高准确度 (AUC=0.918) 的OH诊断.
- 考克斯回归证实,正常血压下降率组的累积生存率显著更高 (98.45%对93.69%,HR=0.304,p=0.044).
结论:
- 快速的正静性血压下降率 (静态血压下降≥15%和/或静态血压下降≥5%在3分钟内) 是MACE和死亡率的显著预测因素.
- 这项研究提出了一种新的,准确的OH诊断标准,在住院患者中具有预后影响.
- 这些发现强调了评估血压下降率对于风险分层和心血管结果管理的重要性.
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