AU - Sorkhi, Hadi AU - Behzadi, Raheleh AU - Joghtaei, Neda AU - Poornasrollah, Mohammad AU - Bijani, Ali TI - Glomerular filtration rate determination by creatinine and cystatin-C in patients with acute pyelonephritis PT - JOURNAL ARTICLE TA - babol-caspjim JN - babol-caspjim VO - 9 VI - 3 IP - 3 4099 - http://caspjim.com/article-1-1206-en.html 4100 - http://caspjim.com/article-1-1206-en.pdf SO - babol-caspjim 3 ABĀ  - Background: Measurement of glomerular filtration rate (GFR) and monitoring of it in any patient on nephrotoxic drugs is very important. Recently, cystatin C (cys-C) has been introduced as a better marker for determining and monitoring renal function than creatinine especially in a mild decrease of GFR. This study was done to assess the change of GFR measurement based on serum Cys-C and creatinine and their comparison in children with acute pyelonephritis on amikacin. Methods: All children with acute pyelonephritis who were admitted in Nephrology ward were enrolled in this study. Serum creatinine, serum cys-C and the GFR calculation based on them were measured in patients on the day of admission (day zero) and then on days 3 and 7 after the start of treatment with amikacin and p-value less than 0.05 was considered significant. Results: Among the 70 children, 61 patients were females and the others were males. Mean age was 42.66±41.53 months. Estimated GFR based on creatinine on day 0 (before amikacin administration), 3 and 7 were 72.41±20.89 ml/min/1.73 m2, 78.42±21.15 ml/min/1.73 m2 and 80.5±22.43 ml/min/1.73 m2, respectively. Moreover, GFR based on cys-C during these days were 116.23±58.9 ml/min/1.73 m2, 116.49±53.31 ml/min/1.73 m2 and 108.37±51.02 ml/min/1.73 m2, respectively (p<0.05). Conclusions: According to this study, decrease of GFR calculation based on Cys-C was seen and estimated GFR was not changed according to creatinine. So, we recommend the use of cys-C for the monitoring of renal function in any patient treated with nephrotoxic drugs such as amikacin. CP - IRAN IN - Non-Communicable Pediatric Diseases Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, IR Iran LG - eng PB - babol-caspjim PG - 290 PT - Original Article YR - 2018