Abstract WP124: Stroke Severity And In-hospital Death In Intracerebral Hemorrhage Patients Taking Antithrombotic Agents: Japan Stroke Data Bank

Stroke(2023)

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摘要
Purpose: The purpose of this study was to determine the associations between antithrombotic agents at onset and outcomes in intracerebral hemorrhage (ICH) patients. Methods: ICH patients admitted within 24 hours after onset from January 2017 to December 2020 were examined from a long-lasting nationwide hospital-based multicenter prospective registry, the Japan Stroke Data Bank. Patients were classified into 4 groups according to types of antithrombotic agents at onset: no-antithrombotic, antiplatelet, warfarin, and DOAC groups. Patients with combination of antiplatelet and anticoagulant agents were classified into respective anticoagulant groups. The outcomes were NIHSS on admission, in-hospital death and unfavorable outcome corresponding to mRS of 5-6 at discharge. Results: Of a total of 9,948 ICH patients (female: 4,329, age 70±15 years old), 77.4% of patients were classified into the no-antithrombotic group, 13.0% into the antiplatelet group, 3.9% into the warfarin group and 5.7% into the DOAC group. Median NIHSS on admission was 12 (interquartile range: 5-22), 13 (5-26), 15 (5-30) and 13 (6-24), respectively. In multivariable analysis, the warfarin group was significantly associated with higher NIHSS on admission (adjusted incidence rate ratio, 1.08 [95% CI, 1.05-1.12], setting the no-antithrombotic group as reference), but the antiplatelet group (1.01 [0.99-1.03]) or the DOAC group (0.97 [0.94-1.00]) was not. The rate of in-hospital death was 13.0% in the no-antithrombotic group, 17.8% in the antiplatelet group, 27.3% in the warfarin group and 18.9% in the DOAC group and that of unfavorable outcome was 30,8%, 41.9%, 48.6% and 41.5%, respectively. In multivariable analysis, the warfarin group was significantly associated with in-hospital death and unfavorable outcome (adjusted odds ratio: 1.62 [95% CI, 1.07-2.46] and 1.79 [1.23-2.6], respectively, setting the no-antithrombotic group as reference), but the antiplatelet group (1.14 [0.87-1.36], 1.11 [0.90-1.36]) or the DOAC group (1.07 [0.72-1.60], 1.27 [0.90-1.78]) was not. Conclusion: ICH patients taking warfarin at onset had higher NIHSS on admission, in-hospital death and unfavorable outcome compared to those without antithrombotic agents, but those taking DOAC did not.
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关键词
intracerebral hemorrhage patients,stroke severity,japan stroke data bank,antithrombotic agents,in-hospital
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