Document Detail


Correlation between preoperative and postoperative duplex vein measurements of the greater saphenous vein used for infrainguinal arterial reconstruction.
MedLine Citation:
PMID:  14760478     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Vein diameter measurements using B-mode Doppler ultrasound (US) are used to assess the greater saphenous vein (GSV) for bypass operations; a 2.5-3.0 mm diameter is suggested as a minimum. Preoperative measurements are made while the vein is in the low-pressure venous system. This may not reflect the distended diameter of a vein after placement in the arterial system. This study compares preoperative and postoperative GSV diameters to identify the degree of dilatation and the minimal size adequate for use in arterial bypass operations. The GSV of 11 patients undergoing an infrainguinal arterial bypass were assessed by utilizing Doppler US. Measurements were taken every 10 cm, for 70 cm, along the course of the GSV before and 4 weeks after operation. All segments showed a percent increase in diameter from the preoperative to postoperative time points; 10 cm, 38+/-; 20 cm, 31+/-; 30 cm, 16+/-; 40 cm, 26+/-; 50 cm, 23+/-; 60 cm, 28+/-; and 70 cm, 22+/-. A Bonferroni post hoc analysis between the 2 time point means showed a significant increase in means for the 2 time points of 9.49 units (Bonf p value < 0.001). Preoperative vein segments were divided into 3 categories: </= 3.0 mm, 3.1-4.0 mm, and > 4.1 mm. All showed a significant increase over time. Preoperative diameter measurements of the vein may not reflect the final distended diameter after bypass. Preoperative vein diameters </= 3.0 mm showed a significant increase of 33+/- to nearly 4.0 mm. This was the largest increase observed in any segment measured. A potential 16-33+/- increase in vein diameter should be considered in vein mapping. The rejection of small veins (</= 3.0 mm) in preoperative vein-mapping studies may not be warranted given the potential for a substantial increase in size when placed in the arterial system.
Authors:
Carlos P Cruz; John F Eidt; Aliza T Brown; M Moursi
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Vascular and endovascular surgery     Volume:  38     ISSN:  1538-5744     ISO Abbreviation:  Vasc Endovascular Surg     Publication Date:    2004 Jan-Feb
Date Detail:
Created Date:  2004-02-04     Completed Date:  2004-05-19     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  101136421     Medline TA:  Vasc Endovascular Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  57-62     Citation Subset:  IM    
Affiliation:
University of Arkansas for Medical Sciences and the Central Arkansas Veterans Healthcare System, Little Rock, AR, USA. cruzcarlosp@uams.edu
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MeSH Terms
Descriptor/Qualifier:
Aged
Arterial Occlusive Diseases / surgery*
Humans
Lower Extremity / blood supply*
Middle Aged
Postoperative Period*
Preoperative Care*
Saphenous Vein / transplantation,  ultrasonography*
Ultrasonography, Doppler, Duplex

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


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