[Constipation in childhood; evaluation of a diagnostic-therapeutic protocol].

In 87 children with constipation an assessment was made of the causes, and of the effect of treatment. Two subdivisions were made, one by age (< 3 years and > or = 3 years) and the second into 'own' or 'referred' patients. For the 59 own children a diagnostic-therapeutic protocol was used, the three-phase protocol. For children over 3 years (n = 29) this policy consists in the first phase of anamnesis, physical examination, diet and oral and/or rectal laxatives. In the second phase, toilet training is administered in combination with diet and oral laxatives. The third phase comprises continuation of the diet and tapering off of the laxatives. If no improvement is seen, supplementary examination is carried out. In the group of own patients younger than 3 years, supplementary examination is already carried out during the first phase. Functional constipation was diagnosed in 69% and 98%, respectively, of the 36 patients under 3 years and the 51 over 3 years. Hirschsprung's disease was diagnosed in 14% and 2%, respectively. In the children > or = 3 years with functional constipation the three-phase policy was successful in 86% with a mean duration of the treatment of 9.5 months. The efficiency of diagnostic examination of children over 3 years appears to be low, justifying the proposed three-phase policy. In children under 3 years, on the other hand, limited laboratory examination is necessary during the first phase. Examination for the presence of Hirschsprung's disease, by means of rectal biopsy or anorectal manometry is indicated if the treatment during the first phase is unsuccessful.