Functional Outcome in Patients With Anorectal Malformation With Recto-prostatic or Recto-bulbar Urethral Fistula and Comparison Between Different Surgical Approaches: A Multi-center Study

Purpose

To analyze and compare the outcomes in patients with anorectal malformation with rectoprostatic and rectourethral fistula between laparoscopic-assisted anorectoplasty (LAARP) versus posterior sagittal anorectoplasty (PSARP).

Method

We performed a retrospective review on all males with anorectal malformation (ARM) with recto-prostatic (ARM-RP) or recto-bulbar urethral fistula (ARM-RB) treated in five tertiary paediatric surgical centres in the past 25 years. Defecative function was assessed using the Krickenbeck classification and Kelly's score. Functional outcomes between patients with LAARP and PSARP were compared.

Results

There were a total of 136 males with ARM-RP and ARM-RB for analysis, among which 73 (53.7%) had ARM-RP and 63 (46.3%) had ARM-RB. The median age of the patients was 9.4 years (range 0.8–24.7 years) and the median age at operation was 0.4 years (0 day–3.1 years). 57 (41.9%) and 79 patients (58.1%) underwent PSARP and LAARP respectively. 34 patients (25%) had VACTERL association. 111 (81.6%) and 103 patients (75.7%) had sacral and spinal cord anomalies respectively. 19 patients (13.9%) eventually required Malone's Antegrade Continence Enema (MACE).

For the comparison between PSARP and LAARP, no difference in Kelly scores (4.58 ± 1.63 versus 4.67 ± 1.36) was identified (p = 0.79). Logistic regression for voluntary bowel movement showed that VACTER association (p = 0.02) and fistula location (p = 0.01) were significant prognostic factors, whereas the operation approach (PSARP or LAARP) was not (p = 0.65).

Conclusion

VACTERL association and fistula location were significant prognostic factors for voluntary bowel movement, and there appeared to be no significant difference in functional outcome between PSARP and LAARP.

Level of Evidence

IV.