Exstrophy Anomalies: Preliminary Review of 18 Cases in Maiduguri; North-Eastern Nigeria

ABSTRACT

Background: Exstrophy anomalies; although rare; pose a tremendous challenge to both surgeons and surrogates. Management is intricate and experience with large members is restricted to a few centres worldwide. This report is a review of 18 cases of these anomalies managed in University of Maiduguri Teaching Hospital (UMTH) over 8 years; highlighting the intricacies of management; and contributes to the existing data bank on this subject matter in our environment. Materials and Methods: We reviewed the records of all cases of anomalies that were managed in the index hospital from December 2002 to December 2010. Results: Eighteen cases were studied. The youngest was a 2-day-old neonate and the oldest was 6 years at repair; with a median age of 4 months. There were 7 boys and 9 girls with bladder exstrophy; and the remaining two were girls with cloacal exstrophy; giving a male-female ratio of 711 for the exstrophy anomalies. Eight patients (33.5) had associated congenital anomalies; 16.7 had undescended testes (UDT); anorectal malformation (ARM) and patent processus vaginalis (PPV); and duplicate bladder occurred in 5.6 of the patients. All but one patient had bilateral posterior iliac osteotomy at bladder closure. Out of the 17 patients that had osteotomy; 76.5 had satisfactory bladder closure (no complication); 5.9 had superficial wound dehiscence; 11.8 had bladder neck dehiscence and 5.9 had complete disruption. The lone patient that did not undergo osteotomy had complete bladder dehiscence. Postoperative immobilization was done for 3 weeks for 16 cases; one was discontinued after 1 week because of complication. The longest follow-up was for 2 years and the shortest for 2 weeks. Four patients (22.2) did not turn up for follow-up. Conclusion: Exstrophy anomalies although rare remain a major challenge in paediatric surgery. Iliac osteotomy; among other technical considerations; remains a cornerstone for successful bladder closure