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Urological anomalies and chronic kidney disease in children with anorectal malformations
Indra Ganesan1, Shunmugam Rajah
1Paediatric Nephrology Service, Department of Paediatrics, KK Women's and Children's Hospital, 100 Bukit Timah Road, Singapore, 298090, Singapore. Indra.Ganesan@kkh.com.sg
Insights
Children with anorectal malformations (ARM) have a 23% risk of urological anomalies. High ARM lesions, genital abnormalities, and cloacal anomalies predict these risks, with low rates of chronic kidney disease (CKD).
Area of Science:
- Pediatric Surgery
- Urology
- Nephrology
Background:
- Anorectal malformations (ARM) are congenital conditions that can be associated with other anomalies.
- Urological anomalies and chronic kidney disease (CKD) are potential complications in children with ARM.
- Understanding risk factors for these complications is crucial for early intervention and improved outcomes.
Purpose of the Study:
- To identify predictors of urological anomalies in infants with ARM.
- To describe the clinical features and incidence of CKD in children with ARM.
- To assess the long-term renal outcomes in this patient population.
Main Methods:
- Retrospective review of infants diagnosed with ARM who underwent surgical correction.
- Data collected from 1986 to 2010 at Sabah Women and Children's Hospital, Malaysia.
- Analysis of 122 children with complete data to identify risk factors and clinical characteristics.
Main Results:
- Urological anomalies were present in 23% of children with ARM.
- Significant predictors for urological anomalies included high ARM lesion, genital abnormality, and cloacal anomaly in girls.
- Chronic kidney disease (CKD) was observed in 5.7% of cases, with end-stage renal failure in 0.8%.
Conclusions:
- While urological anomalies are common in ARM, the overall incidence of CKD and end-stage renal disease is low.
- Early identification of infants with ARM at risk for renal complications is vital for preserving renal function.
- Risk stratification can guide closer monitoring and timely management of potential renal issues in children with ARM.
Background:
This study aims to predict risk factors for urological anomalies in children with anorectal malformations (ARM) and describes the clinical features of patients who have developed chronic kidney disease.
Methods:
We retrospectively reviewed infants with ARM who received surgery and were followed at the Sabah Women and Children's Hospital, Malaysia, from 1986 to 2010.
Results:
One hundred and twenty-two children with anorectal malformations were studied, after excluding 24 children with incomplete data. Three factors were significant as predictors of the presence of a urological anomaly: high ARM lesion (OR 3.12, 95%CI 1.1-8.9), the presence of genital abnormality (OR 2.95, 95%CI 1.10-7.91) and cloacal anomaly in girls (OR 8.27, 95% CI 1.91-35.6). The most common anomalies were vesicoureteric reflux, single kidney and neurogenic bladder. Chronic kidney disease (CKD) was noted in 5.7%, in children who had recurrent urinary tract infections, neurogenic bladder or complex renal tract pathology; end-stage renal failure was seen in only 0.8% of children with ARM.
Conclusion:
Urological anomalies were seen in 23% of patients, but the overall incidence of CKD and end-stage renal disease is low. Early identification of infants with ARM at risk of renal failure may be important for renal survival.
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