Document Detail

Complex-shaped platinum coils for brain aneurysms: higher packing density, improved biomechanical stability, and midterm angiographic outcome.
MedLine Citation:
PMID:  17698550     Owner:  NLM     Status:  MEDLINE    
BACKGROUND AND PURPOSE: Five to 60% of coiled brain aneurysms recanalize, generally because of coil compaction. In vitro exclusive use of complex-shaped coils allows better packing of the aneurysmal sac and the neck as compared with helical coils. We report a single-center, prospective study using complex coils. Safety, packing density, and recanalization rate were evaluated. MATERIALS AND METHODS: Seventy-seven aneurysms were embolized using complex coils alone. Aneurysms had a volume of 265 mm3 (diameter: 7.1+/-3.3 mm) and a neck size of 4.1+/-1.8 mm (range: 1.5-12 mm). Average follow-up available in 31 patients was 10.5+/-7.6 months (range: 3-36 months). Primary angiographic endpoints included aneurysmal recanalization and (re)rupture. Primary adverse events included stroke or death. RESULTS: Complete or near-complete occlusion was achieved in all of the aneurysms but required balloon assistance in 24.6%. The packing density was computed as 37%+/-13%. No rerupture was observed during the follow-up interval. Recanalization was seen in 4 (12.9%) of 31. Two basilar tip aneurysms underwent a safe and complete recoiling. Periprocedural nondevice-related neurologic deficits were seen in 2 (2.9%) of 69 patients. CONCLUSIONS: The use of complex-shaped coils allows higher packing density, which may improve the recanalization rate. Basilar tip aneurysms remain a challenge.
A K Wakhloo; M J Gounis; J S Sandhu; N Akkawi; A E Schenck; I Linfante
Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  AJNR. American journal of neuroradiology     Volume:  28     ISSN:  0195-6108     ISO Abbreviation:  AJNR Am J Neuroradiol     Publication Date:  2007 Aug 
Date Detail:
Created Date:  2007-08-16     Completed Date:  2007-11-13     Revised Date:  2008-02-14    
Medline Journal Info:
Nlm Unique ID:  8003708     Medline TA:  AJNR Am J Neuroradiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1395-400     Citation Subset:  IM    
Department of Radiology, University of Massachusetts Medical School, Worcester, MA 02481, USA.
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MeSH Terms
Aged, 80 and over
Cerebral Angiography
Embolization, Therapeutic / instrumentation*,  methods
Equipment Design
Intracranial Aneurysm / radiography*,  therapy*
Middle Aged
Treatment Outcome
Reg. No./Substance:

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