Elevated Levels of Inflammation Markers Predict Poor Outcomes in Acute Ischemic Stroke Patients After Intravenous Thrombolysis.
Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association(2021)
Abstract
OBJECTIVES:Inflammation is associated with the occurrence and prognosis of ischemic stroke. The aim of this study was to evaluate the association between inflammatory biomarkers and the short-term clinical outcomes of acute ischemic stroke (AIS) patients after intravenous thrombolysis (IVT).
MATERIALS AND METHODS:A total of 208 AIS patients treated with IVT were enrolled in this retrospective study. Blood tests of inflammatory biomarkers, including the leukocyte count, neutrophil count, lymphocyte count, neutrophil-to-lymphocyte ratio and high-sensitivity C-reactive protein level, were conducted within 24 h after IVT. The primary outcome was decent functional recovery (DFR) [modified Rankin Scale score (mRS) of 0-2] at 3 months. The secondary outcomes included symptomatic intracranial hemorrhage and 3-month mortality. A multivariate analysis was performed to evaluate the associations between inflammatory biomarkers and 3-month clinical outcomes.
RESULTS:At 3 months follow-up, 113 (62.2%) patients achieved DFR. As compared to patients with DFR, patients without DFR had higher leukocyte counts (8.5 ± 2.4 × 109/L versus 6.9 ± 1.7 × 109/L, P=0.000), neutrophil counts (6.1 ± 2.3 × 109/L versus 4.6±1.7 × 109/L, P=0.000) and neutrophil-to-lymphocyte ratio (4.6 ± 2.4 versus 3.3 ± 1.9, P=0.000). After adjusting for the stroke subtype, severity of stroke, and medical history, the leukocyte count and neutrophil count remained significantly correlated with non-DFR (adjusted odds ratio [OR] 1.488; 95% confidence interval [CI], 1.247-1.776; P=0.000 and adjusted OR 1.522; 95% CI, 1.269-1.826; P=0.000, respectively).
CONCLUSIONS:This study demonstrates that increased levels of inflammatory biomarkers are independently associated with poor outcomes at 3 months in AIS patients treated with IVT.
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