The oxfordshire community stroke project classification system predicts clinical outcomes following intravenous thrombolysis: A prospective cohort study

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Abstract

Background: The Oxfordshire Community Stroke Project (OCSP) classification system is a simple stroke classification system that can be used to predict clinical outcomes. In this study, we compare the safety and efficacy of intravenous thrombolysis in Chinese stroke patients categorized using the OCSP classification system. Patients and methods: We collected data from the Thrombolysis Implementation and Monitoring of Acute Ischemic Stroke in China registry. A total of 1,115 patients treated with intravenous thrombolysis with alteplase within 4.5 hours of stroke onset were included. Symptomatic intracranial hemorrhage (SICH), mortality, and 90-day functional outcomes were compared between the stroke patients with different stroke subtypes. Results: Of the 1,115 patients included in the cohort, 197 (17.67%) were classified with total anterior circulation infarct (TACI), 700 (62.78%) with partial anterior circulation infarct, 153 (13.72%) with posterior circulation infarct, and 65 (5.83%) with lacunar infarct. After multivariable adjustment, compared to the patients with non-TACI, those with TACI had a significantly increased risk of SICH (odds ratio [OR] 8.80; 95% confidence interval [CI] 2.84-27.25, P<0.001), higher mortality (OR 5.24; 95% CI 3.19-8.62; P<0.001), and poor functional independence (OR 0.38; 95% CI 0.26-0.56; P<0.001) at 3-month follow-up. Conclusion: After thrombolysis, the patients with TACI exhibited greater SICH, a higher mortality rate, and worse 3-month clinical outcomes compared with the patients with non-TACI. The OCSP classification system may help clinicians predict the safety and efficacy of thrombolysis.

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Yang, Y., Wang, A., Zhao, X., Wang, C., Liu, L., Zheng, H., … Wang, Y. (2016). The oxfordshire community stroke project classification system predicts clinical outcomes following intravenous thrombolysis: A prospective cohort study. Therapeutics and Clinical Risk Management, 12, 1049–1056. https://doi.org/10.2147/TCRM.S107053

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