| Comparison of abomasal luminal gas pressure and volume and perfusion of the abomasum in dairy cows with left displaced abomasum or abomasal volvulus. | |
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MedLine Citation:
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PMID: 15141879 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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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. |
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Authors:
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Thomas Wittek; Peter D Constable; Manfred Fürll |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: American journal of veterinary research Volume: 65 ISSN: 0002-9645 ISO Abbreviation: Am. J. Vet. Res. Publication Date: 2004 May |
Date Detail:
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Created Date: 2004-05-14 Completed Date: 2004-07-02 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0375011 Medline TA: Am J Vet Res Country: United States |
Other Details:
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Languages: eng Pagination: 597-603 Citation Subset: IM |
Affiliation:
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Medizinische Tierklinik der Universität Leipzig, Leipzig, Germany. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Abomasum
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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:
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50-21-5/Lactic Acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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