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Changes in Cerebral Venous Sinuses Diameter After Lumbar Puncture in Idiopathic Intracranial Hypertension: A Prospective MRI Study.
MedLine Citation:
PMID:  22913783     Owner:  NLM     Status:  Publisher    
BACKGROUND: Idiopathic intracranial hypertension (IIH), is characterized by elevated intracranial pressure (ICP) without a clear cause. Recently it was shown that in more than 90% of the IIH patients there is stenosis of the transverse dural sinuses. In this study we assessed the changes in diameter of cerebral veins after lumbar puncture, in order to have some more insight regarding the volume and pressure influence on cerebral veins. METHODS: We prospectively included 13 patients suspected with IIH, admitted for investigation in the Soroka medical center. All the patients had a lumbar puncture (LP) with opening pressure measurement and CSF analysis, and two MRI-MRV studies: one before the LP and one after it. Measurements of the cerebral venous sinuses diameter were performed. RESULTS: Significant stenosis of both transverse sinuses was found before LP in IIH patients with an average diameter of 1.77 mm of the right TS, and 1.57 mm of the left TS. After the LP, there was a significant increase in all venous sinuses diameters (P < .05). There was no correlation between the changes in diameter of the venous sinuses after LP and opening pressure measured or BMI. CONCLUSIONS: Our results support other studies and demonstrated narrowing of the transverse sinuses in IIH patients. The main finding of this study is the increase in cerebral sinuses diameter after LP. This observation should be considered when evaluating cerebral venous sinuses after LP. A larger scale study is warranted to validate our findings. J Neuroimaging 2012;XX:1-4.
Anat Horev; Hen Hallevy; Ygal Plakht; Zamir Shorer; Itzhak Wirguin; Ilan Shelef
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-22
Journal Detail:
Title:  Journal of neuroimaging : official journal of the American Society of Neuroimaging     Volume:  -     ISSN:  1552-6569     ISO Abbreviation:  J Neuroimaging     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9102705     Medline TA:  J Neuroimaging     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 by the American Society of Neuroimaging.
From the Department of Neurology, Soroka University Medical Center, Beer-Sheva, Israel (MD); Department of Neurology, Sourasky Medical Center, Tel-Aviv, Israel (HH); Unit of Nursing Research, Soroka University Medical Center, Beer-Sheva, Israel (YP); Pediatric Neurology Unit, Soroka University Medical Center, Beer-Sheva, Israel (ZS); and Radiology institution, Soroka University Medical Center, Beer-Sheva, Israel (IS).
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