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    Urinary expression of acute kidney injury biomarkers in patients after RIRS: It is a prospective, controlled study
    (E-Century Publishing Corporation, 2015) Dede O.; Dağguli M.; Utanğaç M.; Yuksel H.; Bodakcı M.N.; Hatipoğlu N.K.; Sancaktutar, Ahmet Ali
    Objective: To evaluated the damage effects of retrograde intra-renal surgery (RIRS) on kidney tissue by measuring kidney injury molecule-1 (KIM-1), neutrophil gelatinase-associated lipocalin (NGAL), N-acetyl-?-D-glucosaminidase (NAG), liver-type fatty acid binding protein (LFABP) expression. Material and methods: We enrolled thirty consecutive patients (Group 1) who underwent RIRS that presented with renal calculi size < 2 cm. Forty-seven control patients (Group 2) with no signs or symptoms of urogenital disease were also enrolled for this study. Patients urine KIM-1, NGAL, NAG, and LFABP and creatinine levels were determined before the surgery, 2 hours after the surgery, and 24 hours after the surgery. Results: Demographic data were established and found to be similar between the two groups. Two hours after the surgery KIM-1/Cr and NGAL/Cr levels had increased significantly in urine compared to levels before the surgery (P:0.04, P:0.02 respectively) and decreased 24 hours after the surgery. The NAG/Cr and LFABP/Cr levels did not change significantly after the surgery. Conclusion: According to acute kidney injury (AKI) markers, this study is suggests that RIRS is a safe method, KIM-1/Cr and NGAL/Cr levels were increased first 2 hours but returned to initial levels within 24 hours after the surgery. © 2015, E-Century Publishing Corporation. All rights reserved.