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Background and purpose This study assessed the predictive factors for symptomatic intracranial hemorrhage (sICH) in patients with acute ischemic stroke (AIS) after receiving intravenous thrombolysis (IVT) within 6 h in northern China. Methods We retrospectively analyzed ischemic stroke patients who were treated with IVT between November 2016 and December 2018 in 19 hospitals in Shandong Province, China. Potential predictors of sICH were investigated using univariate and multivariate analyses. Results Of the 1293 enrolled patients (845 men, aged 62 ± 11 years), 33 (2.6%) developed sICH. The patients with sICH had increased coronary heart disease (36.4% vs. 13.7%,  P  = 0.001), more severe stroke (mean National Institutes of Health Stroke Scale [NIHSS] score on admission of 14 vs.7,  P  &lt; 0.001), longer door-to-needle time [DNT] (66 min vs. 50 min,  P  &lt; 0.001), higher blood glucose on admission, higher white blood cell counts (9000/mm 3  vs. 7950/mm 3 ,  P  = 0.004) and higher neutrophils ratios (73.4% vs. 67.2%,  P  = 0.006) et al. According to the results of multivariate analysis, the frequency of sICH was independently associated with the NIHSS score (OR = 3.38; 95%CI [1.50–7.63];  P  = 0.003), DNT (OR = 4.52; 95%CI [1.69–12.12];  P  = 0.003), and white blood cell count (OR = 3.59; 95%CI [1.50–8.61];  P  = 0.004). When these three predictive factors were aggregated, compared with participants without any factors, the multi-adjusted odds ratios (95% confidence intervals) of sICH for persons concurrently having one, two or three of these factors were 2.28 (0.25–20.74), 15.37 (1.96–120.90) and 29.05 (3.13–270.11), respectively (P for linear trend &lt; 0.001), compared with participants without any factors. Conclusion NIHSS scores higher than 10 on admission, a DNT &gt; 50 min, and a white blood cell count ≥9000/mm 3  were independent risk factors for sICH in Chinese patients within 6 h after IVT for AIS.

bmc neurology

Predictors for symptomatic intracranial hemorrhage after intravenous thrombolysis with acute ischemic stroke within 6 h in northern China: a multicenter, retrospective study