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Stomach gas analyses in canine acute gastric dilatation with volvulus
H J Van Kruiningen1, C Gargamelli, J Havier
1Department of Pathobiology and Veterinary Science, University of Connecticut, Storrs.
Background:
The origin of the gas in the stomachs of dogs with acute gastric dilatation or gastric dilatation with volvulus (GDV) often is disputed.
Hypothesis:
We tested the hypothesis that gaseous distention resulted from aerophagia.
Animals:
Ten cases of GDV that were submitted to an emergency clinic were sampled intraoperatively.
Methods:
With the abdomen open, the needle of a vacutainer blood collection set was inserted into the distended stomach, and gas was collected into 10 mL glass vacutainer vials with rubber stoppers. These were stored at room temperature for 1-7 days and then analyzed by gas chromatography and mass spectroscopy.
Results:
CO2 composition ranged from 13 to 20%. One dog had an H2 concentration of 29%.
Conclusions:
Because the CO2 content of atmospheric air is less than 1%, these findings suggest that the gaseous gastric distention in GDV is not the result of aerophagia.
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