Document Detail

Popliteal vein entrapment in the normal population.
MedLine Citation:
PMID:  1451818     Owner:  NLM     Status:  MEDLINE    
The aim of this study was to determine the incidence and severity of popliteal vein compression by full knee extension in the normal population. The popliteal veins in 100 healthy volunteers (200 limbs) with no history of previous deep vein thrombosis (DVT) or venous obstruction were examined using duplex scanning with the knee slightly flexed and then fully extended. Knee extension produced complete obstruction in 17 subjects and severe obstruction (< 50% decrease in diameter) in a further 10 subjects. Thirteen subjects had unilateral compression and 14 bilateral. The 27 subjects were tested for functional venous outflow obstruction with air plethysmography. In flexion, the outflow fraction was normal (> 40%) in all subjects. With the knee fully extended, severe or complete venous obstruction (outflow fraction < 10%) was found in eight subjects. Moderate obstruction (outflow fraction 10-40%) was found in all the remaining 19 subjects. When digital compression of the long saphenous vein was performed, these subjects also demonstrated severe outflow obstruction. Although the incidence of symptoms of functional venous obstruction is rare in the general population, these findings have important implications for venous stasis for patients on the operating table and in those having prolonged bed rest. Studies investigating the association between popliteal vein compression and postoperative deep venous thrombosis are needed.
M Leon; N Volteas; N Labropoulos; H Hajj; E Kalodiki; C Fisher; P Chan; G Belcaro; A N Nicolaides
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  European journal of vascular surgery     Volume:  6     ISSN:  0950-821X     ISO Abbreviation:  Eur J Vasc Surg     Publication Date:  1992 Nov 
Date Detail:
Created Date:  1993-01-06     Completed Date:  1993-01-06     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8709440     Medline TA:  Eur J Vasc Surg     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  623-7     Citation Subset:  IM    
Irvine Laboratory for Cardiovascular Investigation and Research, St Mary's Hospital Medical School, London, U.K.
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MeSH Terms
Constriction, Pathologic / diagnosis,  epidemiology
Cross-Sectional Studies
England / epidemiology
Muscle Contraction / physiology
Plethysmography / instrumentation
Popliteal Vein*
Thrombosis / diagnosis,  epidemiology*
Transducers, Pressure
Ultrasonography / instrumentation

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

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