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논문 기본 정보

자료유형
학술저널
저자정보
박관진 (서울대학교) 김경 (서울대학교병원) 임영재 (서울대학교)
저널정보
대한비뇨기과학회 Investigative and Clinical Urology Investigative and Clinical Urology Vol.65 No.3
발행연도
2024.5
수록면
293 - 299 (7page)
DOI
https://doi.org/10.4111/icu.20240091

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초록· 키워드

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Purpose: Urinary biomarkers are known to be able to diagnose renal damage caused by obstruction at an early stage. We evaluated the usefulness of urine N-acetyl-beta-D-glucosaminidase (NAG) to determine the prognosis of antenatal hydronephrosis. Materials and Methods: From January 2019 to December 2021, a retrospective study was performed on patients with grade 3 or 4 hydronephrosis. We analyzed the ultrasonographic findings and the urinary NAG/Cr ratio between the laparoscopic pyeloplasty (LP) group and active surveillance (AS) group. Results: A total of 21 children underwent LP for ureteropelvic junction (UPJ) obstruction and 14 children underwent AS. The mean age at the time of examination was 3.7 months (1.7–7.5 months) in the LP and 5.2 months (0.5–21.5 months) in the AS (p=0.564). The mean anteroposterior pelvic diameter was 30.0 mm (15.0–49.0 mm) in the LP and 16.7 mm (9.0–31.3 mm) in the AS (p=0.003). The mean renal parenchymal thickness was 2.6 mm (1.2–3.7 mm) in the LP and 3.8 mm (2.9–5.5 mm) in the AS (p=0.017). The urinary NAG/Cr ratio was 26.1 IU/g (9.8–47.4 IU/g) in the LP and 11.1 IU/g (2.6–18.1 IU/g) in the AS (p=0.003). After LP, the urinary NAG/Cr ratio was significantly reduced to 10.4 IU/g (3.4–14.2 IU/g) (p=0.023). Conclusions: The urinary NAG/Cr ratio, one of the biomarkers of acute renal injury, is closely related to the degree of hydronephrosis. Therefore, it may be useful to determine whether to perform surgery on the UPJ obstruction and to predict the prognosis.

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