• Medicine · Sep 2022

    Observational Study

    Blood pressure variability related to early outcome of acute ischemia stroke in a prospective observational study.

    • Wang Ningning, Hu Ying, Lin Shudong, Zhang Zhilong, Cai Qibo, Deng Yuting, Zhang Hao, Wu Nan, Qiu Changchun, Yang Xiujing, Jin Ming, and Li Jingping.
    • Institute of Polygenic Disease, Qiqihar Medical University, Qiqihar, Heilongjiang, China.
    • Medicine (Baltimore). 2022 Sep 23; 101 (38): e30780.

    AbstractHypertension is a well-known risk factor for stroke, but the relationship between blood pressure variation (BPV) and prognosis remains unclear. This prospective observational study assessed the association between BPV and early functional outcomes in acute ischemic stroke patients. A total of 871 patients with acute ischemic stroke within 24 h of symptom onset were recruited from the Third Affiliated Hospital of Qiqihar Medical University between 2013 and 2016. Within 6 days of hospitalization, blood pressure was continuously measured from 8:00 to 9:00 every day, and the coefficient of variation (CV) of blood pressure was calculated (including systolic blood pressure [SBP] and diastolic blood pressure [DBP]). The modified Rankin scale was used to evaluate early functional outcomes at discharge. The coefficients of variation of SBP, DBP, and functional outcomes were included as primary outcome variables. Demographic characteristics and medical history were recorded as secondary outcome variables. We found that a greater CV level of SBP and DBP were associated with the poor early functional outcome at hospital discharge, and the odds ratio (OR) and 95% confidence interval (95%CI) of them were 1.56 (1.04-2.35) and 1.99 (1.31-3.03) respectively. A higher standard deviation (SD) of SBP and DBP significantly increased risk of poor early prognosis, OR (95%CI) was 1.78 (1.17-2.71) and 2.25 (1.47-3.45) respectively. Similar results were observed for SBP and DBP. The larger the range of SBP and DBP, the worse is the prognosis. In conclusion, the present study suggests that high BPV is a risk factor for poor early prognosis in acute ischemic stroke.Copyright © 2022 the Author(s). Published by Wolters Kluwer Health, Inc.

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