Document Detail


Influence of transmural pressure on retrograde pressure pulse transmission velocity in the canine superior vena cava.
MedLine Citation:
PMID:  6085251     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The influence of intrathoracic and intraluminal pressure on venous pressure pulse propagation velocity in the superior vena cava was investigated in acute canine experiments. The propagation velocity of distinct points of the venous pressure curve was measured under different conditions of preload, during expiratory and inspiratory apnea and during positive-negative pressure respiration. Under control conditions transmission velocities varied from 1.07 m/s to 3.29 m/s. After volume expansion propagation velocities rose significantly and varied from 1.09 m/s to 6.48 m/s. During expiratory apnea and at peak negative expiratory pressure, the propagation speed of distinct pressure points was higher than during inspiratory apnea and at peak positive inspiratory pressure. Significant linear correlation coefficients were found between the transmission velocities of different distinct pressure points and the transmural pressure, but not between the propagation speed and the intraluminal pressure.
Authors:
J Minten; F Van de Werf; A E Aubert; H Kesteloot; H De Geest
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Archives internationales de physiologie et de biochimie     Volume:  92     ISSN:  0003-9799     ISO Abbreviation:  Arch. Int. Physiol. Biochim.     Publication Date:  1984 Nov 
Date Detail:
Created Date:  1985-05-08     Completed Date:  1985-05-08     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0405355     Medline TA:  Arch Int Physiol Biochim     Country:  BELGIUM    
Other Details:
Languages:  eng     Pagination:  317-25     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Blood Pressure*
Blood Pressure Determination
Central Venous Pressure
Dogs
Electrocardiography
Infusions, Parenteral
Muscle, Smooth, Vascular / physiology*
Plasma Substitutes / pharmacology
Positive-Pressure Respiration
Vena Cava, Superior / physiology
Chemical
Reg. No./Substance:
0/Plasma Substitutes

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


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