Document Detail


New retrievable coil anchors: preliminary in vivo experiences in swine.
MedLine Citation:
PMID:  15696355     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: To design and test retrievable coil anchors to improve the safety and efficacy of coil embolization. METHODS: Fifty-two 0.038-inch homemade retrievable stainless steel coils were equipped with one of four different pre-shaped nitinol anchors and tested in 38 pigs. All coils with the anchor were completely retrieved and redeployed 3-18 times (median 7 times) prior to release. Types 1 and 2 anchored coils were acutely deployed in the external iliac arteries (n = 10 each), and chronically tested (1 week) in the common carotid arteries (n = 6 each). Larger type 1 (n = 4), type 3 (n = 6), and type 4 (n = 4) anchored coils were acutely deployed in the abdominal aorta. The largest type 1 anchors (n = 6) were acutely tested in the inferior vena cava. RESULTS: All anchored coils were successfully retrieved and repositioned several times. All but two coils formed a compact plug and there was no coil migration except with two mechanically defective type 3 anchors. CONCLUSION: The use of retrievable anchors allowed the coils to be retrieved and repositioned, prevented coil migration, and enabled compact coil configuration.
Authors:
A Kónya; K C Wright
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Cardiovascular and interventional radiology     Volume:  28     ISSN:  0174-1551     ISO Abbreviation:  Cardiovasc Intervent Radiol     Publication Date:    2005 Mar-Apr
Date Detail:
Created Date:  2005-05-10     Completed Date:  2005-06-01     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  8003538     Medline TA:  Cardiovasc Intervent Radiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  228-41     Citation Subset:  IM    
Affiliation:
Section of Interventional Radiology, Division of Diagnostic Imaging, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA. akonya@mdanderson.org
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MeSH Terms
Descriptor/Qualifier:
Alloys
Animals
Aorta, Abdominal / radiography
Balloon Dilatation / instrumentation,  methods
Carotid Artery, Common / radiography
Embolization, Therapeutic / instrumentation*,  methods
Equipment Design
Femoral Artery / radiography
Femoral Vein / radiography
Foreign-Body Migration / prevention & control
Iliac Artery / radiography
Safety
Stainless Steel
Surface Properties
Swine
Treatment Outcome
Vena Cava, Inferior / radiography
Grant Support
ID/Acronym/Agency:
CA 16672/CA/NCI NIH HHS
Chemical
Reg. No./Substance:
0/Alloys; 12597-68-1/Stainless Steel; 52013-44-2/nitinol

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


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