| Post-natal Outcome of Fetal Hydronephrosis Detected with
Prenatal Ultrasonography |
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Youn Jin Park1, Soon Jung Mun1, Chong Woo Bae1, Bum Ha Lee2, Jin Il Kim3 |
1Department of Pediatrics, College of Medicine, Kyung Hee University, Seoul, Korea
2Department of Radiology, College of Medicine, Kyung Hee University, Seoul, Korea
3Department of Urology, College of Medicine, Kyung Hee University, Seoul, Korea |
| 산전 초음파로 진단된 태아 수신증의 생후 경과 관찰 |
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박연진1, 문수정1, 배종우1, 이범하2, 김진일3 |
1경희대학교 의과대학 소아과학교실
2경희대학교 의과대학 진단방사선과학교실
3경희대학교 의과대학 비뇨기과학교실 |
Correspondence:
Chong Woo Bae, Email: baecwkmc@zaigen.co.kr
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| Abstract |
Purpose
: Hydronephrosis constitutes a great portion of fetal anomalies screened by prenatal sonogram.
The present authors made an attempt to access its natural courses through follow up neonatal
hydronephrosis diagnosed by prenatal sonogram.
Methods
: The study was composed of 23 neonates(36 renal units) who were diagnosed with
hydronephrosis through prenatal sonogram screening and confirmed 3-7 days after birth with sonographic
evaluation at Kyung Hee University Hospital. The neonates were closely monitored for
12-24 months with renal sonogram, diuretic renogram, intravenous pyelography(IVP) and voiding
cystoureterography(VCUG).
Results
: The underlying diseases were composed of 16 cases(44%) of functional abnormalities,
14 cases(39%) of ureteropelvic junction(UPJ) obstruction, three cases(8%) of vesicoureteral reflux
(VUR) and on case each of multicystic dysplastic kidney, UPJ obstruction with ureteral stenosis
and ureterovesical junction(UVJ) obstruction with VUR. The degree of hydronephrosis was divided
into three classes according to its severity. In 30 renal units with UPJ obstruction and functional
abnormalities, 26(87%) showed mild hydronephrosis, while four(13%) were moderate. During
the follow up period, six cases(20%) showed natural resolution of hydronephrosis, 15 cases(50%)
showed improvement while two cases(7%) were aggravated with improvement only after surgery
of the underlying disease. The cases which showed natural resolution were all mild hydronephrosis
at diagnosis and the cases which underwent surgery due to continuous aggravation were mild
one case and moderate one case.
Conclusion
: Those with cases of mild hydronephrosis show rapid natural improvement. On the
other hand, in some cases, follow up monitoring reveal aggravation of the situation, emphasizing
the necessity for thorough follow up for a long period of time. |
| Key Words:
Fetal hydronephrosis, Out-come, Prenatal ultrasonography |
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