PMID: 15222525Jun 30, 2004Paper

Manometric tests of anorectal function in healthy adult Thai subjects

Journal of the Medical Association of Thailand = Chotmaihet Thangphaet
Pimpak KritasampanSomchai Leelakusolvong

Abstract

Diseases of the distal gastrointestinal tract are becoming more common among Thai people especially in the elderly. Manometry is a new and useful technique in the diagnosis and management of anorectal disorders. This cross-sectional study aimed to measure anorectal manometric parameters in normal Thai subjects. Thirty healthy Thai subjects (17 males and 13 females) were studied. They completed a questionnaire assessing their bowel function. A water-perfused manometric system with non-pull-through technique was used to monitor pressure in the rectum and anus. All subjects were asked to squeeze the anal sphincters, bear down, then blow up a party balloon. Rectal sensation and recto-anal inhibitory reflex were also assessed by intermittent phasic balloon distention. Simulated defecation or balloon expulsion test was also performed. The study revealed the following anorectal manometric parameters. The mean with standard deviation of the resting, squeezed, and sustained squeezed pressures were 55.4 +/- 15.3, 170.3 +/- 81.7 and 109.3 +/- 54.4 mm Hg respectively. Men had a longer anal sphincter (p = 0.01) and higher squeezed, and sustained squeezed pressures (p < 0. 001) compared to women, while their resting sphincter pressures were ...Continue Reading

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