| Vasa vasorum changes following stent placement in experimental arterial stenoses. | |
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MedLine Citation:
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PMID: 8481575 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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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. |
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Authors:
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J M Pisco; M Correia; J A Esperança-Pina; L A de Sousa |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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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:
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Created Date: 1993-06-02 Completed Date: 1993-06-02 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 9203369 Medline TA: J Vasc Interv Radiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 269-73 Citation Subset: IM |
Affiliation:
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Department of Radiology, Sta Marta Hospital, Lisboa, Portugal. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Aorta, Abdominal / pathology Constriction, Pathologic Dogs Female Male Stents / adverse effects* Vasa Vasorum / pathology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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