The study on the association of blood pressure variability with early neurological deterioration in patients with acute non-cardioembolic ischemic stroke / 中国神经精神疾病杂志

ABSTRACT

Objective To explore the relationship between 24-hour blood pressure variability after admission and early neurological deterioration in patients with acute non-cardioembolic ischemic stroke.Methods This was a case-control study.Patients with acute non-cardioembolic ischemic stroke within 72 hours after stroke onset were prospectively registered.Clinical and 24 -hour continuous blood pressure monitoring data were recorded, and subsequently compared with regard to whether early neurological deterioration ( END) occurred within 7 days after admission.Factors contributing to END were investigated by logistic regression model.Results Of 221 eligible patients, 59 cases ( 26.7%) exhabited END.Patients with END had higher 24-hour mean systolic blood pressure ( SBP) (145.8 ±18.2 mmHg vs.139.9 ± 20.3 mmHg, P=0.014) and SBP coefficient of deviation (SBP-CV) [9.0(7.3 -11.2) vs.8.4(6.9-10.2), P=0.011].After adjusting for crude variables, multivariate analysis showed that the increase in mean SBP (10 mmHg mean SBP,OR=1.285,95%CI(1.059~1.559) and SBP-CV [1 unit of SBP-CV, OR=1.206,95%CI(1.050~1.384)] was associated with higher risk of END.Conclusions Increased 24-hour blood pressure variability after admission is an independent risk factor for occurrence of END in patients with acute non-cardioembolic ischemic stroke.