Document Detail


In vivo distribution of particulate matter from coated angioplasty balloon catheters.
MedLine Citation:
PMID:  23375949     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Most catheter-based vascular medical devices today have hydrophilic lubricious coatings. This study was designed to perform a territory-based downstream analysis of end organs subsequent to angioplasty with coated balloon catheters to better understand the potential in vivo physiological consequence of coating wear materials. Coronary angioplasty was performed on swine using balloon catheters modified with two polyvinylpyrrolidone (PVP)-based coatings of similar lubricity, but different levels of particulates (5-fold) when tested in a tortuous path model. Myocardial tissues examined 28 days post-angioplasty revealed no visible particulates in the animals treated with the lower particulate catheters while 3 of 40 sections from higher particulate catheters contained amorphous foreign material, and 1 of 40 sections from tissue treated with uncoated catheters had amorphous foreign material. Non-target organs and downstream muscle revealed no particulates for any of the treatments. Histological analysis showed that the overall number of vessels with embolic foreign material was low and evidence of myocyte necrosis was rare with either of the coatings investigated in this study.
Authors:
David E Babcock; Robert W Hergenrother; David A Craig; Frank D Kolodgie; Renu Virmani
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-31
Journal Detail:
Title:  Biomaterials     Volume:  -     ISSN:  1878-5905     ISO Abbreviation:  Biomaterials     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-2-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8100316     Medline TA:  Biomaterials     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013 Elsevier Ltd. All rights reserved.
Affiliation:
SurModics Inc., Eden Prairie, MN, USA. Electronic address: dbabcock@surmodics.com.
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