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Accuracy of Urinary Neutrophil Gelatinase-Associated Lipocalin in Quantifying Acute Kidney Injury after Partial Nephrectomy in Patients with Normal Contralateral Kidney

 Kyo Chul Koo  ;  Jung Hwa Hong  ;  Hye Sun Lee  ;  Seong Uk Jeh  ;  Young Deuk Choi  ;  Koon Ho Rha  ;  Won Sik Ham 
 PLoS One, Vol.10(7) : e0133675, 2015 
Journal Title
 PLoS One 
Issue Date
BACKGROUND: To evaluate the efficacy of urinary neutrophil gelatinase-associated lipocalin (uNGAL) for predicting the degree of acute kidney injury (AKI) in patients following partial nephrectomy (PN). METHODS: This prospective study included 176 patients who underwent open or laparoscopic PN for solid renal tumors between June 2013 and May 2014. Urine samples were collected preoperatively and at 3, 24, and 48 h after renal pedicle clamp removal. Changes in uNGAL levels were analyzed for all patients and between subgroups that were dichotomized based on preoperative eGFR values of <60 and ≥60 mL/min/1.73m2, open and laparoscopic surgery, and according to the onset of AKI. Linear mixed models were used to investigate preoperative and perioperative features associated with postoperative uNGAL and eGFR changes at 6 months postoperatively. RESULTS: Among 146 patients included in the final analysis, 10 (6.8%) patients had preoperative eGFR <60 mL/min/1.73m2. In the overall group, uNGAL levels increased following PN. However, all subgroups demonstrated comparable changes in uNGAL levels over time. Multivariate analyses failed to reveal any correctable clinical features associated with postoperative uNGAL changes, whereas preoperative serum creatinine levels and the onset of AKI correlated with eGFR at 6 months postoperatively. CONCLUSIONS: uNGAL levels may increase following PN. However, it does not appear to be a useful marker for quantifying the degree of AKI or predicting postoperative renal function in patients with normal contralateral kidney and relatively good preoperative renal function. Further analysis is necessary to assess the usefulness of uNGAL in patients with poor preoperative renal function.
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1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Yonsei Biomedical Research Center (연세의생명연구원)
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Urology (비뇨의학교실)
Yonsei Authors
구교철(Koo, Kyo Chul) ORCID logo https://orcid.org/0000-0001-7303-6256
나군호(Rha, Koon Ho)
이혜선(Lee, Hye Sun) ORCID logo https://orcid.org/0000-0001-6328-6948
제성욱(Jeh, Seong Uk)
최영득(Choi, Young Deuk) ORCID logo https://orcid.org/0000-0002-8545-5797
함원식(Ham, Won Sik) ORCID logo https://orcid.org/0000-0003-2246-8838
홍정화(Hong, Jung Hwa)
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