Abstract
Clinical Outcome After First and Recurrent Hemorrhage in Patients With Untreated Brain Arteriovenous Malformation
Highlights
MethodsThe 241 consecutive arteriovenous malformations (AVM) patients (mean age 37Ϯ16 years, 52% women) from the prospective Columbia AVM Databank initially presenting with hemorrhage were evaluated using the Rankin Scale (RS) and the National Institute of Health Stroke Scale (NIHSS)
Background and PurposeThe morbidity from spontaneous hemorrhage of untreated brain arteriovenous malformations (AVM) is not well described
In 241 AVM patients presenting with hemorrhage the median Rankin Scale (RS) was 2 and the median National Institute of Health Stroke Scale (NIHSS) was 1 (49% RS 0 to 1, 61% NIHSS Ͻ2)
Summary
The 241 consecutive AVM patients (mean age 37Ϯ16 years, 52% women) from the prospective Columbia AVM Databank initially presenting with hemorrhage were evaluated using the Rankin Scale (RS) and the National Institute of Health Stroke Scale (NIHSS). From the 241 AVM patients, 29 (12%) had subsequent intracranial hemorrhage during follow-up. 84 non-AVM patients with intracerebral hemorrhage from the Northern Manhattan Study (NOMAS) served as a control group. The Columbia AVM Database is an ongoing prospective study project with consecutive enrollment since 1989. The aim of this observational study is to collect demographic, clinical, morphological, and treatment data of patients with AVM admitted to our center for diagnosis and treatment. The Columbia AVM Databank design conforms to the national consensus recommendations for AVM research reporting terminology and have been described in prior publications.[8,15,16,17] This analysis includes patients enrolled in the Columbia AVM Database until August 2004
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