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Journal of the Korean Society of Pediatric Nephrology 2005;9(1): 69-75.
신생아 수신증의 원인과 임상 경과에 대한 고찰
강현영, 장미영, 이재호
1충남대학교 의과대학 소아과학교실
2충남대학교 의과대학 소아과학교실
3충남대학교 의과대학 소아과학교실
Causes and Clinical Outcomes of Congenital Hydronephrosis
Hyun-Young Kang, Mea-Young Chang, Jae-Ho Lee
1Department of Pediatrics, College of Medicine, Chungnam National University
2Department of Pediatrics, College of Medicine, Chungnam National University
3Department of Pediatrics, College of Medicine, Chungnam National University
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ABSTRACT
Purpose : The most important management of congenital hydronephrosis consists of the early diagnosis and evaluation of the pathologic abnormalities of congenital hydronephrosis. This study was conducted to investigate the different causes of hydronephrosis and its clinical outcome.
Methods : 54 live neonates who were hospitalized and diagnosed with congenital hydronephrosis at Chungnam National University Hospital from Aug. 1998 to Aug. 2003 were retrospectively analyzed.
Results : Hydronephrosis(renal pelvic AP diameter $gt;5 mm) was postnatally detected in 54 cases(2.1%) among 2,539 neonates who were hospitalized from Aug. 1998 to Aug. 2003. There were three times more males than females. Additional imaging studies revealed that ureteropelvic junction obstruction was the most common postnatal diagnosis(48.7%), followed by multicystic dysplastic kidney, vesicoureteral reflux and duplication kidney with ureterocele. Spontaneous regression of hydronephrosis was revealed in 25 renal units(75.8% ) of mild hydronephrosis, 14 renal units of moderate hydronephrosis and 1 renal unit of severe hydronephrosis. Operative correction were carried out in 14 renal units(70%) of severe hydronephrosls.
Conclusion : The most common established cause of congenital hydronephrosis in this study was ureteropelvic junction obstruction. There are many cases of spontaneous regression in mild to moderate congenital hydronephrosis. Urinary tract infections occur in many neonates with hydronephrosis. Therefore, early detection and evaluation of congenital hydronephrosis and continuous follow-up at regular intervals are necessary for conservation of renal function.
Key words: Congenital hydronephrosis | Ureteropelvic junction | obstruction
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