Document Detail

Lower incidence of symptomatic vasospasm after subarachnoid hemorrhage owing to ruptured vertebrobasilar aneurysms.
MedLine Citation:
PMID:  16331158     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: In this study, we evaluated the difference in incidence of symptomatic vasospasm between ruptured aneurysms in the anterior and posterior circulation using multiple logistic regression analysis. METHODS: A total of 145 consecutive patients who underwent surgery for aneurysms within 72 hours after subarachnoid hemorrhage (SAH) were studied. RESULTS: The ruptured aneurysm was in the anterior circulation in 128 patients (88.3%) and in the posterior circulation in 17 patients (11.7%). Forty patients (27.6%) had symptomatic vasospasm and 105 patients (72.4%) did not. Univariate and multivariate analyses were performed to assess relationships among various variables and the occurrence of symptomatic vasospasm after SAH. Finally, Grade III to V (Hunt and Hess grade) and Group 3 (Fisher's classification) on admission were found to be independently positively associated with the occurrence of symptomatic vasospasm while ruptured vertebrobasilar aneurysm were negatively associated. CONCLUSION: Although a poor clinical grade and a severe SAH classification on admission such as Hunt and Hess grade and Fisher's classification are established powerful predictors of symptomatic vasospasm, ruptured vertebrobasilar aneurysm are for the first time reported to be a predictor of symptomatic vasospasm based on results of a recent reliable statistical analysis.
Yutaka Hirashima; Masanori Kurimoto; Emiko Hori; Hideki Origasa; Shunro Endo
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Neurosurgery     Volume:  57     ISSN:  1524-4040     ISO Abbreviation:  Neurosurgery     Publication Date:  2005 Dec 
Date Detail:
Created Date:  2005-12-06     Completed Date:  2006-05-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7802914     Medline TA:  Neurosurgery     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1110-6; discussion 1110-6     Citation Subset:  IM    
Department of Neurosurgery, Toyama Medical and Pharmaceutical University, Toyama, Japan.
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MeSH Terms
Aneurysm, Ruptured / complications
Basilar Artery*
Intracranial Aneurysm / complications*
Logistic Models
Middle Aged
Multivariate Analysis
Severity of Illness Index
Subarachnoid Hemorrhage / complications*,  etiology
Vasospasm, Intracranial / epidemiology*,  etiology*
Vertebral Artery*

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