PLoS Med: 血压变化和痴呆症的风险

2019-12-29 不详 MedSci原创

背景 血压的变化可能与通过自主神经紊乱或血液动力学机制引起的痴呆风险有关,但长期关联尚不清楚。本项研究旨在确定在几年内血压的变化是否与痴呆症的风险有关。

背景
血压的变化可能与通过自主神经紊乱或血液动力学机制引起的痴呆风险有关,但长期关联尚不清楚。本项研究旨在确定在几年内血压的变化是否与痴呆症的风险有关。

方法
本项研究共纳入了5273名无痴呆症参与者(女性58.1%;平均年龄为67.6岁)。截至2016年,在14.6年的中位随访期间发生了1059例痴呆症病例。收缩压(SBP)的绝对变化被评估为SBP的绝对差除以每4.2(中位数)年两次连续访视的平均值,将第一个分位数设置为参考水平。研究人员估计了在痴呆诊断之前不同时间窗(即至少0、5、10和15年)测得的与SBP变化有关的痴呆风险,并调整了年龄,性别,教育程度,载脂蛋白E(APOE)的基因型,血管危险因素和心血管疾病的病史。

结果:
SBP变异大与痴呆风险增加有关,随着SBP变异评估与痴呆诊断之间间隔时间的延长,这种风险变得更加明显。SBP变异度测量的5年内,与大变异(最高五分位数)相关的危险比(HR)从1.08(95%置信区间[CI] 0.88-1.34,P = 0.337 )增加到3.13(95%CI 2.05–4.77; P <0.001)自测量SBP变化以来至少15年后存在风险。长期风险增加与大幅度上升(最高五分位数的HR,3.31 [95%CI 2.11–5.18],P <0.001)和SBP大幅下降(最低五分位数的HR,2.20 [95%CI) 1.33–3.63],P= 0.002)有关,而较高的短期风险仅与SBP的大幅下降有关(HR,1.21 [95%CI 1.00-1.48],P = 0.017)。

结论
这项研究的结果表明,多年来血压的大幅波动与痴呆症的长期风险增加有关。随着血压的大幅上升和下降,痴呆症的长期风险显着升高。

原始出处:

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    2020-10-03 Boyinsh
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    2019-12-29 junJUN

    老年人痴呆何药可用??

    0

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