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Anal sphincter structure and function in homosexual males engaging in anoreceptive intercourse
1Department of Medicine, University of Pittsburgh School of Medicine, Pennsylvania, USA.
The American Journal of Gastroenterology
|March 1, 1997
Summary
Anoreceptive intercourse (ARI) in homosexual men is linked to lower resting anal pressures but normal total pressures. Studies found no anal sphincter defects or fecal incontinence in these individuals.
Area of Science:
- Gastroenterology
- Colorectal Surgery
- Sexual Health
Background:
- Anoreceptive intercourse (ARI) is common in homosexual men.
- The impact of ARI on anal sphincter structure and function requires further investigation.
- Understanding potential risks like incontinence is crucial for this population.
Purpose of the Study:
- To evaluate the structure and function of the internal (IAS) and external (EAS) anal sphincters in anoreceptive homosexual men.
- To determine if ARI is associated with an increased risk of fecal incontinence.
Main Methods:
- Prospective cohort study comparing 14 anoreceptive homosexual men with 10 age-matched heterosexual controls.
- Anal canal pressures assessed via manometry (resting and maximum squeeze).
- Anal sphincter structure evaluated using endoanal ultrasonography.
Main Results:
- Significantly lower resting anal canal pressures observed in the ARI group (70.7 mm Hg vs. 91.4 mm Hg).
- No significant differences in maximum squeeze pressures or structural defects of the IAS/EAS between groups.
- No participants reported fecal incontinence.
Conclusions:
- ARI is associated with reduced resting anal pressures but normal overall anal sphincter function.
- No structural anal sphincter abnormalities or fecal incontinence were detected in anoreceptive homosexual men.
- Lower resting pressures may be attributed to better sphincter relaxation during manometry in the ARI group.