Document Detail


Comparison of abomasal luminal gas pressure and volume and perfusion of the abomasum in dairy cows with left displaced abomasum or abomasal volvulus.
MedLine Citation:
PMID:  15141879     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To compare abomasal luminal gas pressure and volume and perfusion of the abomasum in dairy cows with a left displaced abomasum (LDA) or abomasal volvulus (AV). ANIMALS: 40 lactating dairy cows (25 with an LDA and 15 with an AV). PROCEDURE: Abomasal luminal gas pressure and volume and pulse oximetry values for the caudal portion of the dorsal ruminal sac and abomasal wall were measured during laparotomy. Abomasal perfusion was assessed on the basis of abomasal O2 saturation (pulse oximetry) before correction of the LDA or AV. Abomasal perfusion was also assessed after correction of the LDA or AV by measuring venous O2 saturation in the right gastroepiploic vein and calculating the abomasal oxygen-extraction ratio. RESULTS: Abomasal luminal gas pressure and volume were higher in cattle with an AV than in cattle with an LDA. Abomasal O2 saturation was lower and abomasal oxygen-extraction ratio higher in cattle with an AV, compared with values in cattle with an LDA. In cows with an AV, lactate concentration in the gastroepiploic vein was greater than that in a jugular vein, whereas no difference in lactate concentrations was detected in cows with an LDA. Abomasal luminal gas pressure was positively correlated (r, 0.51) with plasma lactate concentration in the gastroepiploic vein and negatively correlated (r, -0.32) with abomasal O2 saturation determined by use of pulse oximetry. CONCLUSIONS AND CLINICAL RELEVANCE: Abomasal perfusion decreases as luminal pressure increases in cattle with an AV or LDA.
Authors:
Thomas Wittek; Peter D Constable; Manfred Fürll
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  American journal of veterinary research     Volume:  65     ISSN:  0002-9645     ISO Abbreviation:  Am. J. Vet. Res.     Publication Date:  2004 May 
Date Detail:
Created Date:  2004-05-14     Completed Date:  2004-07-02     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0375011     Medline TA:  Am J Vet Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  597-603     Citation Subset:  IM    
Affiliation:
Medizinische Tierklinik der Universität Leipzig, Leipzig, Germany.
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MeSH Terms
Descriptor/Qualifier:
Abomasum / blood supply*,  physiopathology
Analysis of Variance
Animals
Blood Chemical Analysis
Blood Gas Analysis
Cattle
Cattle Diseases / physiopathology*
Lactic Acid / blood
Laparotomy
Oximetry
Pressure
Regional Blood Flow
Stomach Diseases / physiopathology,  veterinary*
Stomach Volvulus / physiopathology,  veterinary*
Chemical
Reg. No./Substance:
50-21-5/Lactic Acid

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


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