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KMID : 0356720000160060402
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Journal of the Korean Society of Coloproctology
2000 Volume.16 No. 6 p.402 ~ p.406
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Association between Poor Bowel Habit and Non-Relaxing Puborectalis Syndrome
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Kim Tae-Hyun
Choi Seok-Jae
Nah Young-Ho
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Abstract
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Purpose: Constipation in children usually is due to poor bowel habit. Ignoring the urge to have a bowel movements initiates a viscious cycle of constipation. After a period of time children may stop feeling the urge, leading to fecal impaction. This leads to loss of anorectal reflex. What is the outcome of the children with long-standing poor bowel habit?
Methods: Forty-two patients with obstructed defecation (non-relaxing puborectalis syndrome) diagnosed by defecogram and anorectal manometry were investigated with rectal sensation and elasticity studies (threshold of sense: TS, defecation sensation volume: DS, maximal tolerable volume: MTV, rectal compliance: RC), and colon transit time (CTT). All detailed questionnaires on the subject were completed. Eighteen patients (11F: 7M, mean age 39 years, range 16∼75) with history of poor bowel habits since childhood were compared with 24 (16F: 8M, mean age 40 years, range 16∼31) with no history of poor bowel habit.
Results: Studies of colonic transit time demonstrated no significant difference in the right and left colon between two groups, but the rectosigmoid transit time in the poor bowel habits group was more increased than in the normal bowel habit group (P＜0.05). The rectal wall compliance was increased in the poor bowel habit group as compared to the normal bowel habits group (P＜0.01). Maximal tolerable volume and defecation sensation volume were greater in the poor bowel habits group than in the control group (P＜0.01), but there was no significant difference in the threshold of sense between two groups.
Conclusion: Prolonged poor bowel habit in childhood period leads to loss of rectal sensation, and provide an explanation for one of the pathophysiologic mechanism of non-relaxing puborectalis syndrome.
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KEYWORD
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Bowel habit, Non-relaxing puborectalis syndrome
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