Hypertension:家庭血压变异性增加的阈值要设置为多少?

2017-02-14 xing.T MedSci原创

日常家庭血压的收缩期/舒张期血压变异系数大于11/12.8的个人其心血管疾病的风险可能会增加。这些发现可以帮助医生识别那些心血管疾病风险增加的个体。

升高的血压变异性可以预测心血管疾病,但缺乏操作阈值从而限制了其在临床实践中的应用。近日,心血管权威杂志Hypertension上发表一篇研究文章,研究人员旨在确定结果驱动的阈值来区分日常家庭血压变异性升高。

研究人员分析了一个来自于日本、希腊和芬兰的含有6238名参与者(平均年龄60±12.9岁,56.4%为女性)的以人群为基础的样本。所有参与者自我测量家庭血压的时间超过3天。研究人员定义的家庭血压变异性是指3-7天早晨第一次血压测量值的变异系数。研究人员评估了收缩压/舒张压变异性之间的相关性(作为一个连续变量和变异系数的十分位数),以及采用调整了队列和包括BP在内的传统心血管危险因素的Cox回归模型来评估心血管结局。

研究人员随访了9.3±3.6年,其中发生心血管死亡的参与者有304例,发生心血管事件的有715例。在收缩/舒张家庭血压变异性每增加1SD与心血管疾病的死亡(风险比为1.17/1.22;95%可信区间为1.06-1.30/1.11-1.34;P=0.003/<0.0001)和心血管事件(风险比为1.13/1.14;95%可信区间为1.05-1.21/1.07-1.23;P=0.0007/0.0002)风险增加相关。与整个人群的平均风险相比,收缩期/舒张期血压变异性(变异系数>11/12.8)位于最高十分位数范围的参与者心血管死亡风险(风险比为1.66/1.84;95%可信区间为1.27-2.17/1.42-2.37;P=0.0002/<0.0001)和心血管事件(风险比为1.46/1.42;95%可信区间为1.21-1.76/1.17-1.71;P<0.0001/0.0004)增大。增加的家庭血压变异性可以预测一般人群的心血管预后。

日常家庭血压的收缩期/舒张期血压变异系数大于11/12.8的个人其心血管疾病的风险可能会增加。这些发现可以帮助医生识别那些心血管疾病风险增加的个体。

原始出处:

Eeva P. Juhanoja,  et al. Outcome-Driven Thresholds for Increased Home Blood Pressure Variability. Hypertension. 2017.   https://doi.org/10.1161/HYPERTENSIONAHA.116.08603

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    2018-01-08 feather89
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    2017-02-16 qjddjq

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