Document Detail

Microvenous graft length determination for arterial repair.
MedLine Citation:
PMID:  3273109     Owner:  NLM     Status:  MEDLINE    
Varying lengths of femoral vein grafts from 36 New Zealand rabbits were used to bridge defects in the ipsilateral femoral artery in an attempt to estimate the correct length of vein graft needed to replace an arterial defect. Harvested venous segments contracted by 35% to 55% of their in vivo length. Short grafts subjected to linear tension had poor patency rates. Increasing the length improved patency. Long redundant grafts were initially tortuous, but lost their redundancy when studied long term. Silicone perfusion studies, however, revealed a persistence of luminal irregularity and tortuosity. Histologically, arterialized vein grafts thickened by accumulation of fibrous tissue in the medial layer, but otherwise maintained identifiable venous morphological characteristics. Scanning electron microscopic studies identified endothelial changes in vein grafts after arterialization. Based on these results, the ideal microvenous graft should be approximately 35% longer than the arterial defect to be bridged when measured in vivo to permit optimal balance between linear and radial deforming forces.
P R Schneider; J Pribaz; R C Russell
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Annals of plastic surgery     Volume:  17     ISSN:  0148-7043     ISO Abbreviation:  Ann Plast Surg     Publication Date:  1986 Oct 
Date Detail:
Created Date:  1990-04-16     Completed Date:  1990-04-16     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7805336     Medline TA:  Ann Plast Surg     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  292-8     Citation Subset:  IM    
Division of Plastic and Reconstructive Surgery, Southern Illinois University School of Medicine, Springfield.
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MeSH Terms
Anastomosis, Surgical / methods
Endothelium, Vascular / ultrastructure
Femoral Artery / anatomy & histology,  surgery*
Femoral Vein / anatomy & histology,  transplantation*
Microscopy, Electron, Scanning
Time Factors
Vascular Patency

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

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