Document Detail

Vasa vasorum changes following stent placement in experimental arterial stenoses.
MedLine Citation:
PMID:  8481575     Owner:  NLM     Status:  MEDLINE    
PURPOSE: Experimental stenoses were created in canine aortae to compare the effects of stent placement and balloon angioplasty on the vasa vasorum. MATERIALS AND METHODS: A balloon-expandable Palmaz stent was placed in the proximal stenosis, and angioplasty was performed in the distal stenosis in each of eight dogs. Two dogs were killed at 4, 8, 12, and 18 months, respectively. Specimens were studied by means of microangiography, histology, scanning electronic microscopy, and Spalteholz technique. RESULTS: At up to 12 months, there was proliferation of the vasa vasorum and a rich plexus formed in each of the animals at each treated site. More vasa vasorum were seen after stent placement than after angioplasty. The new vessels were mainly venules located in the media. At 18 months, there was regression of the venules and the vasa vasorum distribution returned to baseline. CONCLUSION: The authors conclude that the effects of stents on the vasa vasorum are temporary.
J M Pisco; M Correia; J A Esperança-Pina; L A de Sousa
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of vascular and interventional radiology : JVIR     Volume:  4     ISSN:  1051-0443     ISO Abbreviation:  J Vasc Interv Radiol     Publication Date:    1993 Mar-Apr
Date Detail:
Created Date:  1993-06-02     Completed Date:  1993-06-02     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  9203369     Medline TA:  J Vasc Interv Radiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  269-73     Citation Subset:  IM    
Department of Radiology, Sta Marta Hospital, Lisboa, Portugal.
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MeSH Terms
Aorta, Abdominal / pathology
Constriction, Pathologic
Stents / adverse effects*
Vasa Vasorum / pathology*

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

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