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JAHA:直立性低血压是否与4年后整体认知表现下降有关?

2018-09-22 xing.T MedSci原创

由此可见,OH与4年随访后整体认知能力下降有关,这种关联依赖于年龄和共存的高血压。

据推测,直立性低血压(OH),站立3分钟内血压降低(≥20/10mmHg)可能会因脑灌注不足而加速认知能力下降。近日,血管疾病领域权威杂志JAHA上发表了一篇研究文章,该研究旨在评估OH对4年随访后整体认知的影响,以及年龄和高血压对这种关联的影响。

研究人员使用来自TILDA(爱尔兰纵向衰老研究)的第1和第3批数据,并使用逐搏血压监测评估对站立的基线血压反应。研究人员在40秒(OH40)和110秒(OH110)进行2次OH测量,使用蒙特利尔认知评估测量整体认知情况。混合效应泊松回归评估基线OH是否与4年随访后整体认知下降相关。该分析可重复,并按年龄(50-64岁和年龄≥65岁)分层,纳入了OH和高血压之间的相互作用。

随访时,基线OH110与蒙特利尔认知评估中的错误率增加相关(比值比为1.17,P=0.028)。按年龄分层,这种关联在50-64岁的患者中仍然存在(比值比为1.25,P=0.048),但年龄≥65岁的个体则不存在。纳入与高血压的相互作用发现OH110与高血压(比值比为1.27,P=0.011)或OH40与高血压(比值比为1.18,P=0.017)并存,表现出错误率增加; 然而,那些孤立的OH110、OH40或孤立性高血压的个体没有这些改变。

由此可见,OH与4年随访后整体认知能力下降有关,这种关联依赖于年龄和共存的高血压。

原始出处:

Triona McNicholas.et al. Is Baseline Orthostatic Hypotension Associated With a Decline in Global Cognitive Performance at 4‐Year Follow‐Up? Data From TILDA (The Irish Longitudinal Study on Ageing).JAHA.2018. https://www.ahajournals.org/doi/full/10.1161/JAHA.118.008976

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    2018-09-24 zhaohui6731
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