Urinary Tract Anomalies in Patients With Anorectal Malformations: The Role of Screening and Clinical Follow-Up

Urology. 2020 Sep:143:216-220. doi: 10.1016/j.urology.2020.05.052. Epub 2020 Jun 7.

Abstract

Objective: To evaluate the efficacy of the screening protocol and the clinical follow-up to detect urological anomalies (UA) in patients with ARM (ARM-P) in our institution. Secondary aim was to define the prevalence of UA and their relationship with severity of ARM.

Methods: ARM-P were selected from a prospectively maintained database from 2000 to 2016. Exclusion criteria were: incomplete or with less than 3 years of follow-up and absence of surgical correction of the anorectal anomalies. Data from urological screening and follow-up were collected. Patients were divided into complex malformations (Group 1) and less complex malformations (Group 2).

Results: One hundred seventeen of 149 were included in the study period (62 group 1, 55 group 2). UA were detected in 36/117 at birth (30.7%) with a difference between groups (P = .0005). VUR was detected in 16 (6 with hydronephrosis, 10 with normal ultrasound at birth). A bladder ultrasound after potty training showed 18 lower urinary tract dysfunction (LUTD; 15 with UA detected at birth, 3 with normal ultrasound). 8 LUTD were found during clinical follow-up, confirmed by ultrasound. Spinal MRI detected spinal cord anomalies (SCA) in 52/117 (44.4%). Considering the subgroups with neurogenic bladder and SCA there was a difference between groups (13/33 vs 1/19).

Conclusion: This study suggests that ARM-P are at increased risk of UA, most of which were detected on neonatal ultrasound. While screening protocol can show 88% of UA, follow-up can detect 12.9 % of total abnormalities without difference between groups. This data has to be considered when planning follow-up for these patients.

MeSH terms

  • Abnormalities, Multiple / diagnosis*
  • Abnormalities, Multiple / physiopathology
  • Anorectal Malformations / epidemiology*
  • Child, Preschool
  • Comorbidity
  • Humans
  • Hydronephrosis / diagnostic imaging
  • Hydronephrosis / etiology
  • Infant
  • Infant, Newborn
  • Magnetic Resonance Imaging
  • Mass Screening
  • Prevalence
  • Retrospective Studies
  • Spinal Cord / abnormalities
  • Spinal Cord / diagnostic imaging
  • Ultrasonography
  • Urinary Bladder / diagnostic imaging*
  • Urinary Bladder / physiopathology
  • Urinary Bladder, Neurogenic / etiology
  • Urogenital Abnormalities / complications
  • Urogenital Abnormalities / diagnostic imaging*
  • Urogenital Abnormalities / epidemiology*
  • Vesico-Ureteral Reflux / diagnostic imaging
  • Vesico-Ureteral Reflux / etiology