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Incidence of Vesicoureteral Reflux and Renal Scar in Asymptomatic Siblings of Patients with Primary Vesicoureteral Reflux

Other Title
선천성 방광요관역류 환아의 형제자매에서 방광요관역류와 신반흔의 유병률
유, 재은; 석, 효정; 송, 준영; 박, 문성; 배, 기수; 김, 영수
Taehan Soa Sinjang Hakhoe chi, 7(2):181-188, 2003
Journal Title
Taehan Soa Sinjang Hakhoe chi; Journal of the Korean Society of Pediatric Nephrology; 대한소아신장학회지
Purpose : Vesicoureteral reflux(VUR) is known to be the main cause of childhood hypertension and renal failure. Knowing its familial occurrence, we determined the incidence of VUR and renal scar in asymptomatic siblings of Korean patients with primary VUR

Methods : A total of 50 siblings from 37 index patients were included. Voiding cystourethro-graphy(VCUG) and renal scintigraphy using $^{99m}Tc-DMSA$ were peformed in these siblings from June, 1994 to May, 2001, Index patients were classified into two groups according to the presence of VUR in their siblings, and the clinical factors of the index patients such as age, sex, grade of reflux and renal cortical defect were compared between the groups.

Results : Among the 50 siblings, VUR were found in 8(16%) and renal cortical defects were detected in 8(16%) siblings respectively. The incidence of renal cortical defects was 87.5%(7 out of 8) in the VUR(+) siblings. There was a case of VUR(-) cortical defect in one sibling, presumed as a scar from an old VUR. There was no relationship among age, sex, grade of reflux and renal cortical defect of the index patient to the presence of VUR in siblings.

Conclusion : This study confirmed a significant incidence of VUR(16%) and renal cortical defects(16%) in the asymptomatic siblings of patients with primary VUR in Korea. It Is resonable to recommend screening studies to the siblings of patients with VUR for the early detection and prevention of probable reflux nephropathy.
Reflux nephropathyVesicoureteral refluxRenal cortical defectSiblingsScreening
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Journal Papers > School of Medicine / Graduate School of Medicine > Pediatrics & Adolescent Medicine
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