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Intestinal gas in simulated flight to high altitude



Intestinal gas in simulated flight to high altitude



Journal of Aviation Medicine 18(4): 352-366



A group of healthy young subjects was exposed to simulated altitudes of 38,000 ft. in a low pressure chamber. In all the flights, serious distress was observed in only 5.5% of the cases. On a normal diet, with low intestinal gas vol. (less than 11.) distress was not common. There is no relation between the development of distress and the so-called gas forming foods. The relative proportions of fat, protein, and carbohydrate in a normal diet apparently have no effect. Melons or carbonated drinks immediately before a flight were regularly associated with incidence of pain. Abnormally high carbohydrate diets are correlated with an increase in incidence and severity of pain. High fat-protein diets are associated with a marked decrease in incidence and severity of pain. Gas immediately above or below the ileo-cecal valve is most likely to produce pain. Certain intestinal stimulating and relaxing drugs (pavatrine, metropine, pro-stigmine bromide) increased the incidence and severity of pain in all subjects.

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Accession: 024888867

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PMID: 20264475


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