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J Pediatr Surg. 1996 Mar;31(3):407-10.

Urologic problems in anorectal malformations. Part 1: Urodynamic findings and significance of sacral anomalies.

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  • 1Department of Pediatric, Wilhelmina Children's Hospital, University Hospital for Children and Youth, Utrecht, The Netherlands.


A series of 90 children with anorectal malformations received a total of 163 urodynamic studies. The mean number of studies per patient was 1.8 (range, 1 to 7), and the mean age at the time of initial evaluation was 17 months (range, 1 to 128). Sacral anomalies were found in 38 children (42%); 30 of them had partial sacral agenesis and eight had sacral dysplasia without bony defect. Normal lower urinary tract function was found in 98% of the children who had a normal sacrum, in all children who had sacral dysplasia, and in a small number of those who had partial sacral agenesis that affected smaller parts of the S-4 and S-5 pedicles. Severe lower urinary tract dysfunction was observed in 22 patients (24%), all but one of whom had partial sacral agenesis. There was no correlation between the type of sacral agenesis and a specific urodynamic pattern. It is concluded that virtually all children with an anorectal malformation and associated sacral agenesis have neurological bladder-sphincter dysfunction and therefore should receive early urodynamic assessment and appropriate urological treatment.

[PubMed - indexed for MEDLINE]
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