Correlation between the Severity of Hydronephrosis and the Presence of VUR in Neonate

Lee, Hyo-Jung; Noh, Seong-Hoon; Lee, Soo-Yeon; Kim, Min-Sun; Lee, Dae-Yeol

doi:2009.13.1.26

J Korean Soc Pediatr Nephrol > Volume 13(1); 2009 > Article

J Korean Soc Pediatr Nephrol 2009;13(1): 26-32. doi: https://doi.org/10.3339/jkspn.2009.13.1.26

신생아에서 수신증의 심한 정도와 방광요관역류 존재와의 연관성

이효정, 노성훈, 이수연, 김민선, 이대열

¹전북대학교 의학전문대학원 소아과학교실
²전북대학교 의학전문대학원 소아과학교실
³전북대학교 의학전문대학원 소아과학교실
⁴전북대학교 의학전문대학원 소아과학교실
⁵전북대학교 의학전문대학원 임상의학연구소

Correlation between the Severity of Hydronephrosis and the Presence of VUR in Neonate

Hyo-Jung Lee, Seong-Hoon Noh, Soo-Yeon Lee, Min-Sun Kim, Dae-Yeol Lee

¹Department of Pediatrics, College of Medicine, Chonbuk National University
²Department of Pediatrics, College of Medicine, Chonbuk National University
³Department of Pediatrics, College of Medicine, Chonbuk National University
⁴Department of Pediatrics, College of Medicine, Chonbuk National University
⁵Department of Pediatrics, College of Medicine, Chonbuk National University

ABSTRACT

Purpose : The increasing use of ultrasonography has allowed for an increase in the of the detection of congenital hydronephrosis, and the clinical outcomes of congenital hydronephrosis are widely varied. In this study, the necessity of voiding cystourethrography in neonate with hydronephrosis to rule out vesicoureteral reflux (VUR) was evaluated.
Methods : Between January 2004 and December 2007, we reviewed the medical record of 157 childrens with congenital hydronephrosis detected within 1 month of age. The severity of hydronephrosis was graded by SFU (Society of Fetal Urology) system, and anterior posterior pelvic diameter (APPD). We evaluated the relationship between severity of hydronephrosis and incidence of VUR by using SPSS windows version 16.0. A P-value<0.05 is considered to be statistically significant.
Results : Total renal unit number was 254, and 20(7.8%) renal units had VUR. We did not find any relationship between hydronephrosis grade the presence of VUR grade (P>0.05). In addition, there was no statistical significance between APPD, laterality of hydronephrosis and VUR incidence. However, renal units with VUR had lower spontaneous resolution rate (P<0.05), compared to renal units without VUR.
Conclusion : In this study, there was no statistical significance between the severity of hydronephrosis and presence of VUR. Therefore, voiding cystourethrogram is recommended for all children with hydronephrosis to rule out VUR, regardless of the severity of hydronephrosis.

Key words: Congenital hydronephrosis | Vesicoureteral reflux | Voiding cystourethrography