PMID- 11458111 OWN - NLM STAT- MEDLINE DCOM- 20010809 LR - 20190621 IS - 0022-5347 (Print) IS - 0022-5347 (Linking) VI - 166 IP - 2 DP - 2001 Aug TI - Reflux nephropathy in infancy: a comparison of infants presenting with and without urinary tract infection. PG - 648-50 AB - PURPOSE: We compared the incidence of renal scarring in infants with high grade vesicoureteral reflux in those presenting with and without urinary tract infection. METHODS AND METHODS: We reviewed the medical records of 81 male and 46 female infants (194 renal refluxing units) with a mean age of 4 months who had grade IV or V primary vesicoureteral reflux and underwent an anti-reflux procedure between 1984 and 1997. Dimercapto-succinic acid (DMSA) scans and voiding cystourethrography were performed in all cases. Patients were followed for 2 to 16 years, including 90% for greater than 3 years. Renal ultrasound and DMSA scan were done at followup. RESULTS: A total of 97 patients (76%) (148 refluxing renal units) presented clinically with urinary tract infection. The initial DMSA scan demonstrated renal scarring in 40 of the 106 grade IV (38%) and 28 of the 42 grade V (67%) refluxing renal units. There was no scarring on followup in previously normal refluxing renal units. Of the patients 30 (24%) (46 refluxing renal units) were diagnosed before a urinary tract infection developed, 16 underwent screening due to vesicoureteral reflux in a sibling and in 10 reflux was initially suspected due to hydronephrosis on prenatal ultrasound. In the remaining 4 patients vesicoureteral reflux was suspected during abdominal ultrasound to investigate abdominal pain, jaundice, associated hypospadias and fetal alcohol syndrome, respectively. DMSA scan showed evidence of scarring in 6 of 21 grade IV (29%) and 9 of 25 grade V (36%) refluxing renal units in this group. Followup revealed scarring in only 1 previously normal refluxing renal unit. CONCLUSIONS: The incidence of reflux nephropathy in primary grade V vesicoureteral reflux is lower in cases detected by screening and with treatment it remained lower than in cases of urinary tract infection that presented clinically. Early treatment of grade V vesicoureteral reflux made possible by screening may prevent renal damage. FAU - Sweeney, B AU - Sweeney B AD - Children's Research Centre, Our Lady's Hospital for Sick Children, Dublin, Ireland. FAU - Cascio, S AU - Cascio S FAU - Velayudham, M AU - Velayudham M FAU - Puri, P AU - Puri P LA - eng PT - Comparative Study PT - Journal Article PL - United States TA - J Urol JT - The Journal of urology JID - 0376374 SB - IM MH - Adolescent MH - Child MH - Child, Preschool MH - Female MH - Humans MH - Hydronephrosis/complications MH - Infant MH - Infant, Newborn MH - Kidney/pathology MH - Kidney Diseases/*etiology MH - Male MH - Retrospective Studies MH - Urinary Tract Infections/*complications MH - Vesico-Ureteral Reflux/*complications/pathology EDAT- 2001/07/18 10:00 MHDA- 2001/08/10 10:01 CRDT- 2001/07/18 10:00 PHST- 2001/07/18 10:00 [pubmed] PHST- 2001/08/10 10:01 [medline] PHST- 2001/07/18 10:00 [entrez] AID - S0022-5347(05)66036-3 [pii] AID - 10.1016/s0022-5347(05)66036-3 [doi] PST - ppublish SO - J Urol. 2001 Aug;166(2):648-50. doi: 10.1016/s0022-5347(05)66036-3.