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Embolization of Meningiomas: Comparison of Safety between Calibrated Microspheres and Polyvinyl-Alcohol Particles as Embolic Agents.
MedLine Citation:
PMID:  23079408     Owner:  NLM     Status:  Publisher    
BACKGROUND AND PURPOSE:During embolization of meningiomas, intratumoral hemorrhagic complications may occur, especially with the use of small particle sizes. We compared the rate of hemorrhagic complications in 55 patients embolized with 400-μm calibrated microspheres (Embozene) with a historical cohort of 198 patients embolized with smaller PVA particles.MATERIALS AND METHODS:Between September 2009 and February 2012, fifty-five patients with 55 meningiomas were embolized with 400-μm calibrated microspheres. Indications for embolization were preoperative in 47 and before radiosurgery in 2 patients; and in 6 patients, embolization was offered as sole therapy. There were 35 women and 20 men with a mean age of 60.3 years. Mean meningioma diameter was 53 mm (range, 23-97 mm). Hemorrhagic complications were recorded.RESULTS:There were no hemorrhagic complications in the 55 embolized patients (0%; 95% CI, 0.0%-7.8%). The difference in complication rates between 400-μm calibrated microspheres in this study (0 of 55, 0%) and small PVA particles (45-150 μm) in the historical cohort (9 of 108, 8.3%) was just short of significance (P = .066). The difference in complication rates between 400-μm calibrated microspheres (0 of 55, 0%) and larger PVA particles (150-250 μm) in the historical cohort (1 of 93, 1.1%) was not significant (P = .8).CONCLUSIONS:In this series, embolization of meningiomas by using large (400-μm) calibrated microspheres did not result in any hemorrhagic complications.
M Sluzewski; W J van Rooij; P N Lohle; G N Beute; J P Peluso
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-18
Journal Detail:
Title:  AJNR. American journal of neuroradiology     Volume:  -     ISSN:  1936-959X     ISO Abbreviation:  AJNR Am J Neuroradiol     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8003708     Medline TA:  AJNR Am J Neuroradiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Departments of Radiology and Neurosurgery, St. Elisabeth Ziekenhuis, Tilburg, the Netherlands.
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