Abstract
Rebleeding after aneurysmal subarachnoid hemorrhage (aSAH) confers a poor prognosis; however, risk factors and differential outcomes associated with early rebleeding in the first 24 h after symptom presentation are incompletely understood. A retrospective cohort study of all aSAH presenting to our institution between 2001 and 2016 was performed. Early rebleeding events were defined as clinical neurologic decline with radiographically confirmed acute intracranial hemorrhage within 24 h after symptom presentation. Univariate and multivariate logistic regression analyses were used to assess clinical associations, with a specific focus on baseline Glasgow Coma Score (GCS), World Federation of Neurosurgical Societies (WFNS), and modified Fisher scores. Of 471 aSAH cases, 33 (7%) experienced early rebleeding. Multivariate regression identified extraventricular drain (EVD) placement (OR = 2.16, P = 0.04) and WFNS 3-5 (OR = 2.69, P = 0.02) as significant predictors of early rebleeding. Good functional outcomes were observed in 8 patients with early rebleeding (24%), all of whom underwent aneurysm treatment. Higher SAH grade prior to rebleeding (WFNS 3-5) was significantly associated with increased odds of an unfavorable functional outc...Continue Reading
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