Anorectal Function and Continence Mechanisms in Childhood Encopresis
Anorectal Function and Continence Mechanisms in Childhood Encopresis
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儿童大便失禁的肛门直肠功能和失禁机制
DOI：
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发表时间：
1986
期刊：
影响因子：
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通讯作者：
Stewart Gabel
中科院分区：
文献类型：
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作者：
Arnold Wald;R. Chandra;D. Chiponis;Stewart Gabel
Summary: We compared anorectal sensory and motor functions, expulsion dynamics, and continence mechanisms in 50 children with encopresis and 21 healthy control children. When expulsion dynamics were studied, 43% of boys with encopresis inappropriately contracted the muscles near the anal canal compared with 10% of girls with encopresis (p > 0.05) and 10% of control children of both sexes (p < 0.05). In contrast to previous studies we demonstrated no abnormalities of thresholds of conscious rectal sensation or internal anal sphincter relaxation. In addition, children with encopresis had no demonstrable abnormalities of rectosphincteric continence mechanisms or strength of external anal sphincter contraction. We conclude that a significant number of boys with encopresis have abnormal anorectal expulsion dynamics, which may contribute to chronic fecal retention and incontinence. Abnormalities of anorectal sensory and motor function and of rectosphincteric continence mechanisms do not seem to be important in the pathogenesis of childhood encopresis.
