Retrospective 6 month-outcomes and prognostic factors following spontaneous angiogram-negative non-perimesencephalic subarachnoid hemorrhage

•SAH patients with non-PMH generally had uncomplicated clinical courses and favorable outcomes.•Non-Fisher-type 3 pattern was a prognostic factor for favorable outcomes in the non-PMH.•Long-term SAH was a prognostic factor for developing hydrocephalus in non-PMH. Our objective was to analyze functio...

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Published in:Journal of clinical neuroscience 2022-02, Vol.96, p.12-18
Main Authors: Kim, Myungsoo, Kim, Byoung-Joon, Son, Wonsoo, Kwak, Youngseok, Park, Jaechan, Park, Seong-Hyun, Kim, Yong-Sun, Kang, Dong-Hun
Format: Article
Language:English
Subjects:
Angiography
Cerebral Angiography
Humans
Hydrocephalus - diagnostic imaging
Hydrocephalus - etiology
Prognosis
Retrospective Studies
Subarachnoid hemorrhage
Subarachnoid Hemorrhage - diagnostic imaging
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Summary:•SAH patients with non-PMH generally had uncomplicated clinical courses and favorable outcomes.•Non-Fisher-type 3 pattern was a prognostic factor for favorable outcomes in the non-PMH.•Long-term SAH was a prognostic factor for developing hydrocephalus in non-PMH. Our objective was to analyze functional outcomes and prognostic factors in patients suffering from angiogram-negative non-perimesencephalic subarachnoid hemorrhage (non-PMH). In total, 1601 patients presenting with spontaneous SAH between January 2009 to December 2019 admitted to our institution were reviewed. Among them, 51 patients with angiogram negative non-perimesencephalic subarachnoid hemorrhage were analyzed. We divided patients into groups according to hemorrhage pattern and duration. Prognostic factors were assessed according to initial neurologic grade, early hydrocephalus, fisher grade, and duration of hemorrhage. Outcomes were assessed according to the modified Rankin Scale after 6 months. Overall, 41 patients (80.3%) with angiogram-negative non-PMH achieved a favorable outcome. In univariate analysis, good initial neurologic grade, absence of early hydrocephalus, non-Fisher-type 3 bleeding pattern, and short term hemorrhage (blood wash out
ISSN:0967-5868
1532-2653
DOI:10.1016/j.jocn.2021.12.017