Serum cystatin C can be used as a marker of renal function even in patients with intestinal urinary diversion

Objective: Recently, serum cystatin C (CysC) has been used as a novel marker of renal function. However, there is a lack of data on CysC levels in patients with intestinal urinary diversion (UD). Here we report CysC levels in such patients. Methods: We prospectively observed 38 patients who were dia...

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Main Authors: Masahiro Matsuki, Toshiaki Tanaka, Takeshi Maehana, Koji Ichihara, Masahiro Yanase, Masanori Matsukawa, Hideki Adachi, Satoshi Takahashi, Naoya Masumori
Format: Article
Language:English
Published: Elsevier 2015-07-01
Series:Asian Journal of Urology
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Online Access:http://www.sciencedirect.com/science/article/pii/S221438821500082X
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author Masahiro Matsuki
Toshiaki Tanaka
Takeshi Maehana
Koji Ichihara
Masahiro Yanase
Masanori Matsukawa
Hideki Adachi
Satoshi Takahashi
Naoya Masumori
author_facet Masahiro Matsuki
Toshiaki Tanaka
Takeshi Maehana
Koji Ichihara
Masahiro Yanase
Masanori Matsukawa
Hideki Adachi
Satoshi Takahashi
Naoya Masumori
author_sort Masahiro Matsuki
collection DOAJ
description Objective: Recently, serum cystatin C (CysC) has been used as a novel marker of renal function. However, there is a lack of data on CysC levels in patients with intestinal urinary diversion (UD). Here we report CysC levels in such patients. Methods: We prospectively observed 38 patients who were diagnosed with bladder cancer and subsequently treated with radical cystectomy and UD at our institution in 2012 and 2013. Serum creatinine (sCr) and CysC were obtained optionally at the same time at least 1 month after radical cystectomy and UD. Results: The median CysC and sCr concentrations were 1.12 mg/L (range 0.75–2.47 mg/L) and 0.99 mg/dL (range 0.61–2.22 mg/dL), respectively. The median estimated concentrations of glomerular filtration rate (GFR) based on CysC (eGFRcys) and GFR based on creatinine (eGFRcreat) were 61.08 mL/min/1.73 m2 (range 22.64–99.89 mL/min/1.73 m2) and 58.01 mL/min/1.73 m2 (range 23.48–91.82 mL/min/1.73 m2), respectively. CysC had a significant correlation with sCr (r = 0.8607, p < 0.0001) and eGFRcreat (r = −0.8993, p < 0.0001). eGFRcys also had a significant correlation with eGFRcreat (r = 0.8104, p < 0.0001). Conclusion: The correlation between CysC and sCr was strong and the correlation coefficient was equivalent to that in patients without UD. The results suggest that CysC is not affected by UD and can be used as a marker of renal function similarly to sCr in patients with UD.
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spelling doaj-art-9da0f8456dc2438d9902eba5cc050a4c2025-08-20T03:04:07ZengElsevierAsian Journal of Urology2214-38822015-07-012316716910.1016/j.ajur.2015.07.003Serum cystatin C can be used as a marker of renal function even in patients with intestinal urinary diversionMasahiro Matsuki0Toshiaki Tanaka1Takeshi Maehana2Koji Ichihara3Masahiro Yanase4Masanori Matsukawa5Hideki Adachi6Satoshi Takahashi7Naoya Masumori8Department of Urology, Sapporo Medical University, School of Medicine, Sapporo, JapanDepartment of Urology, Sapporo Medical University, School of Medicine, Sapporo, JapanDepartment of Urology, Sapporo Medical University, School of Medicine, Sapporo, JapanDepartment of Urology, Sapporo Medical University, School of Medicine, Sapporo, JapanSapporo Kidney Disease Treatment Forum, Sapporo, JapanSapporo Kidney Disease Treatment Forum, Sapporo, JapanSapporo Kidney Disease Treatment Forum, Sapporo, JapanDepartment of Urology, Sapporo Medical University, School of Medicine, Sapporo, JapanDepartment of Urology, Sapporo Medical University, School of Medicine, Sapporo, JapanObjective: Recently, serum cystatin C (CysC) has been used as a novel marker of renal function. However, there is a lack of data on CysC levels in patients with intestinal urinary diversion (UD). Here we report CysC levels in such patients. Methods: We prospectively observed 38 patients who were diagnosed with bladder cancer and subsequently treated with radical cystectomy and UD at our institution in 2012 and 2013. Serum creatinine (sCr) and CysC were obtained optionally at the same time at least 1 month after radical cystectomy and UD. Results: The median CysC and sCr concentrations were 1.12 mg/L (range 0.75–2.47 mg/L) and 0.99 mg/dL (range 0.61–2.22 mg/dL), respectively. The median estimated concentrations of glomerular filtration rate (GFR) based on CysC (eGFRcys) and GFR based on creatinine (eGFRcreat) were 61.08 mL/min/1.73 m2 (range 22.64–99.89 mL/min/1.73 m2) and 58.01 mL/min/1.73 m2 (range 23.48–91.82 mL/min/1.73 m2), respectively. CysC had a significant correlation with sCr (r = 0.8607, p < 0.0001) and eGFRcreat (r = −0.8993, p < 0.0001). eGFRcys also had a significant correlation with eGFRcreat (r = 0.8104, p < 0.0001). Conclusion: The correlation between CysC and sCr was strong and the correlation coefficient was equivalent to that in patients without UD. The results suggest that CysC is not affected by UD and can be used as a marker of renal function similarly to sCr in patients with UD.http://www.sciencedirect.com/science/article/pii/S221438821500082XRenal functionCystatin CUrinary diversion
spellingShingle Masahiro Matsuki
Toshiaki Tanaka
Takeshi Maehana
Koji Ichihara
Masahiro Yanase
Masanori Matsukawa
Hideki Adachi
Satoshi Takahashi
Naoya Masumori
Serum cystatin C can be used as a marker of renal function even in patients with intestinal urinary diversion
Asian Journal of Urology
Renal function
Cystatin C
Urinary diversion
title Serum cystatin C can be used as a marker of renal function even in patients with intestinal urinary diversion
title_full Serum cystatin C can be used as a marker of renal function even in patients with intestinal urinary diversion
title_fullStr Serum cystatin C can be used as a marker of renal function even in patients with intestinal urinary diversion
title_full_unstemmed Serum cystatin C can be used as a marker of renal function even in patients with intestinal urinary diversion
title_short Serum cystatin C can be used as a marker of renal function even in patients with intestinal urinary diversion
title_sort serum cystatin c can be used as a marker of renal function even in patients with intestinal urinary diversion
topic Renal function
Cystatin C
Urinary diversion
url http://www.sciencedirect.com/science/article/pii/S221438821500082X
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