Document Detail


Effect of chronic sympathetic denervation upon the transcapillary filtration rate induced by venous stasis.
MedLine Citation:
PMID:  6869029     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The effect of venous pressure elevation upon capillary filtration rate in the limb was studied in 6 chronically sympathectomized patients. Five healthy subjects served as controls. Volume changes of the forearm or calf were recorded by a strain-gauge plethysmograph. Relative blood flow in subcutaneous and muscle tissue during venous stasis was measured by the local 133Xe washout technique. In the denervated limbs there was a linear relationship between net capillary filtration rate and venous pressure elevation. In the controls a non-linear relationship was seen as venous pressure elevation of 40 mmHg only caused an increase in net filtration rate of about 66% of that expected from a linear relationship. In the denervated limbs of blood flow in muscle and subcutaneous tissue remained constant during venous pressure elevation of more than 30 mmHg whereas in the non-denervated limbs blood flow decreased by about 50% in both tissues. The results suggest that a local sympathetic veno-arteriolar (axon) reflex plays a dominant role for the reduced increase in net capillary filtration during large increases in venous pressure. The local axon reflex may therefore act as an edema protecting factor.
Authors:
O Henriksen; P Sejrsen; W P Paaske; J H Eickhoff
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Acta physiologica Scandinavica     Volume:  117     ISSN:  0001-6772     ISO Abbreviation:  Acta Physiol. Scand.     Publication Date:  1983 Feb 
Date Detail:
Created Date:  1983-08-17     Completed Date:  1983-08-17     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0370362     Medline TA:  Acta Physiol Scand     Country:  SWEDEN    
Other Details:
Languages:  eng     Pagination:  171-6     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Axons / physiology
Capillary Permeability*
Forearm / blood supply
Humans
Leg / blood supply
Middle Aged
Muscles / blood supply
Reflex
Sympathectomy*
Vascular Resistance
Veins / innervation
Venous Pressure*

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


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