Indra Ganesan1, Shunmugam Rajah. 1. Paediatric Nephrology Service, Department of Paediatrics, KK Women's and Children's Hospital, 100 Bukit Timah Road, Singapore, 298090, Singapore. Indra.Ganesan@kkh.com.sg
Abstract
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.
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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