Objective: This is a single-center retrospective analysis of the clinical data of 516 patients with acute ischemic stroke who underwent intravenous thrombolysis. This study was conducted to compare the therapeutic efficacy of smokers and non-smokers.
Methods: Univariate analysis was used to analyze and compare the clinical data of smokers and non-smokers. Multivariate analysis was used to assess risk factors affecting the 90-day modified Rankin Scale (mRS) score.
Results: Among the 516 patients, 235 (45.5 %) were smokers. Univariate analysis showed that smokers have a better 90-day prognosis and a lower 90-day mRS score than non-smokers. Multivariate logistic regression analysis showed that smoking is not a protective factor affecting prognosis, while baseline National Institutes of Health Stroke Scale (NIHSS) score was an independent risk factor affecting the 90-day functional outcome. Subgroup analysis did not determine a relationship between the 90-day mRS score and the smoking intensity and duration.
Conclusion: Smoking was not associated with a good 90-day prognosis after intravenous thrombolysis (IVT) treatment. The good clinical outcome of smokers in univariate analysis was bound up with their baseline characteristics. Baseline NIHSS score was the independent risk factor that affected the 90-day outcome of AIS patients undergoing IVT.
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