Laparoscopic-assisted pull-through for Hirschsprung's disease, a prospective repeated evaluation of functional outcome

Aim of the study: To evaluate the functional outcome of laparoscopic-assisted endorectal pull-through (LAP) for Hirschsprung's disease (HSCR) over time. Methods: Thirty-five children with HSCR underwent laparoscopic-assisted pull-through at our institution between 1998 and 2009. The diagnosis was histologically confirmed in all cases. Clinical data was extracted from the case records. A prospective assessment of the functional outcome was performed in 2009 and 2012. Exclusion criteria were a follow-up of less than 6 months after treatment (1 case) and total colonic aganglionosis (1 case). An independent examiner, not involved in the clinical care of the patients, performed interviews using a semi-structured questionnaire. Four patients could not be traced for the first interview. Two cases were lost for the second interview. Altogether twenty-seven patients completed the study. Data from the two interviews were compared. The regional ethical review board approved the study. Main Results: The median patient age was 4 years old (range 2-16) at the time of the first interview and 7 years old (range 5-19) at the time of the second interview. There were 23 males and 4 females in the study group. The median age at laparoscopic-assisted pull-through was 104 days old (range 29 days-8 years). In the first interview 11 patients reported constipation, 18 patients reported soiling more frequently than once per week when they had loose stools and 16 patients when they had solid stools. Laxatives or irrigations were used by 13 of the patients. In the second interview 4 patients reported constipation, 16 patients reported soiling when they had loose stools and 15 patients reported soiling when they had solid stools. Eight patients used laxatives or irrigations. The decrease in constipation was statistically significant (p = 0,023). Conclusions: Our study shows a statistically significant reduction of constipation over time. There is a high risk of incontinence after laparoscopic-assisted pull-through, with few signs of short-term improvement. (C) 2013 Elsevier Inc. All rights reserved.