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High-altitude flatus expulsion

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(Redirected from High altitude flatus expulsion) Gastrointestinal syndrome

High-altitude flatus expulsion (HAFE) is a gastrointestinal syndrome which involves the spontaneous passage of increased quantities of rectal gases at high altitudes.

Syndrome

High-altitude flatus expulsion was first described by Joseph Hamel in c. 1820 and occasionally described afterward. A landmark study of this phenomenon was published in 1981 by Paul Auerbach and York Miller.

The feeling of fullness or need to expel brought on by this differential in atmospheric pressure has been verified by studies involving military pilots subjected to pressure changes simulating flight.

See also

References

  1. ^ Auerbach Paul, Miller YE (February 1981). "High Altitude Flatus Expulsion (HAFE)". West. J. Med. 134 (2): 173–174. PMC 1272559. PMID 18748805.
  2. Mary Ann Liebert, Inc. - High Altitude Medicine & Biology - 2(4):551
  3. E.Y. Davis, FRCP(Ret), "Hafe In Nepal" West J Med. 1981 April; 134(4): 366, identifying "Flatulence Accompanying Rigorous Trekking," Kathmandu Medical Bulletin, 1972.
  4. Greenwald AJ, Allen TH, Bancroft RW (February 1969). "Abdominal gas volume at altitude and at ground level". J Appl Physiol. 26 (2): 177–81. doi:10.1152/jappl.1969.26.2.177. PMID 5765206. Retrieved 2009-03-05.
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