| Anogenital Index of Normal Children and Its Clinical Significance in Children with Constipation |
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Kyung Rye Moon |
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Department of P ediatrics, College of M edicine, Chosun University, Kwangju, Korea |
| 정상 소아의 항문-성기 지수와 변비 환아에서 그 임상적 의의 |
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문경래 |
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조선대학교 의과대학 소아과학교실 |
Correspondence:
Kyung Rye Moon, Email: 1
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| Abstract |
Purpose
: The purpose of this study was to find an objective criteria to determine the position of
normal anus in Korean children and to evaluate the clinical significance of anterior displacement
of anus in children with constipation.
Methods
: Three hundred and thirty-nine normal children and 24 children with idiopathic constipation
represented the basis of this study. The position of the normal anus was defined by the
anogenital index, which is the distance from the anus to the vagina or scrotum divided by the
distance between the vagina or scrotum and coccyx.
Results
: The mean anogenital index were 0.54¡¾0.08 in normal male children, and 0.52¡¾0.04 in
male with constipation(P > 0.05). The mean anogenital index were 0.43¡¾0.08 in normal female
children, and 0.42¡¾0.07 in female with constipation(P > 0.05). The anogenital index was very constant
by age except for late male childhood. The anogenital index in female was significantly
lower than in the male(P < 0.001). There was no significant difference of the anogenital index
between the normal and constipated groups. In both male and female groups with constipation,
the anogenital index did not deviate from the mean, but one female patient had an anogenital
index of 0.29. The ratio of the anterior displacement of the anus was 21 out of 339(6.2%) in the
normal group(SD< 0.05), and 2 out of 24(9%) in the constipated group(SD< 0.05), and there was no
difference(P > 0.05).
Conclusion
: The anogenital index is an objective criteria to define the position of normal anus
or anterior displacement of anus. There is no correlation between anterior displacement of the
anus and idiopathic constipation. |
| Key Words:
Anogenital index, Anterior displacement of anus, Constipation |
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