Document Detail

Comparison of coil types in aneurysm recurrence.
MedLine Citation:
PMID:  21862207     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: Coiling of saccular aneurysms may result in recurrence requiring retreatment. Aneurysm recanalization may depend on coil type. Coil variations include bare platinum, polymer coated (Matrix), and hydrophylic gel coated (HydroCoil) coils. The effect of coil type on aneurysm recurrence was evaluated.
METHODS: Retrospective analysis of prospectively collected database of 100 consecutive, 4-15mm, coiled, ruptured aneurysms. There were 3 groups based on coil type: (1) bare platinum, (2) HydroCoil, and (3) Matrix. Data collected included age, gender, aneurysm location, follow-up, retreatments and angiographic occlusion and recanalization.
RESULTS: There were 42.4% (n=14) anterior and 57.5% (n=19) posterior circulation aneurysms in the bare platinum, 61.5% (n=16) and 38.45% (n=10) in HydroCoil, and 43.9% (n=18) and 56.1% (n=23) in the Matrix groups. Retreatment was required in 4 (12.1%) bare platinum, 9 (21.9%) Matrix, and 3 (11.5%) HydroCoil groups. On follow-up angiography HydroCoil group had the most number of completely occluded and least number of residual aneurysms (P=0.01), HydroCoils showed the least (n=4), bare platinum an intermediate (n=7), and matrix group the greatest tendency (n=15) to recanalize.
CONCLUSIONS: Matrix coils were most likely to need retreatment. Retreatment rates were comparable for bare platinum and HydroCoils. Follow-up angiography demonstrated statistically significant attenuation of residual aneurysms for HydroCoils. Matrix group had the greatest and HydroCoils the least tendency to recanalize. Factors other than coil surface-coating may attenuate aneurysm recurrence.
Shah-Naz Hayat Khan; Christopher Nichols; John J Depowell; Todd A Abruzzo; Andrew J Ringer
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2011-08-20
Journal Detail:
Title:  Clinical neurology and neurosurgery     Volume:  114     ISSN:  1872-6968     ISO Abbreviation:  Clin Neurol Neurosurg     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2011-12-26     Completed Date:  2012-05-04     Revised Date:  2012-08-21    
Medline Journal Info:
Nlm Unique ID:  7502039     Medline TA:  Clin Neurol Neurosurg     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  12-6     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 Elsevier B.V. All rights reserved.
The University of Cincinnati (UC) Neuroscience Institute: Department of Neurosurgery, UC College of Medicine, Cincinnati, OH, United States.
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MeSH Terms
Aged, 80 and over
Analysis of Variance
Aneurysm, Ruptured / surgery
Arterial Occlusive Diseases / complications
Cerebral Angiography
Coated Materials, Biocompatible
Databases, Factual
Endovascular Procedures
Follow-Up Studies
Intracranial Aneurysm / surgery*
Middle Aged
Neurosurgical Procedures / instrumentation*,  methods*
Prospective Studies
Recurrence / prevention & control
Retrospective Studies
Surgical Instruments*
Treatment Outcome
Reg. No./Substance:
0/Coated Materials, Biocompatible; 25852-47-5/Hydrogel; 7440-06-4/Platinum

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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