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http://acervodigital.unesp.br/handle/11449/140326
- Title:
- Two-hour creatinine clearance and glomerular filtration rate estimated from serum cystatin C and creatinine in the elderly to preoperative period
- Universidade Estadual Paulista (UNESP)
- 2164-2842
- Introduction: The utility of estimates of glomerular filtration rate based on creatinine and cystatin C serum levels to assess renal function in older surgical patients remains to be determined. Objective: To determine whether 2h-creatinine clearance (CrCl-2h) can be an adequate substitute for glomerular filtration rate estimates obtained by measuring serum cystatin C and creatinine in the elderly at preoperation. Methods: A total of 102 consecutive elder patients undergoing pre-anesthesia evaluation for routine surgeries were included. Study subjects were allocated into three groups: Group 1 (G1)—hypertensive diabetic patients, Group 2 (G2)—hypertensive patients, and Group 3 (G3)—non-hypertensive and non-diabetic patients. Two-hour urine collection was performed and CrCl-2h adjusted for ultrasonic residual bladder volume was estimated. GFR was estimated based on creatinine and cystatin C serum levels. Bland-Altman analysis was used to compare methods. Results: The mean difference between the evaluated methods and CrCl-2h was <15 mL·min−1 ·1.73 m−2 for Cys-GFR, and >20 mL·min−1 ·1.73 m−2 for Cr-GFR in all groups. CrCl-2h adjusted for ultrasonic residual bladder volume did not differ from non-adjusted CrCl-2h in none of the groups. Conclusion: Two-hour creatinine clearance was not an adequate substitute for GFR estimates based on creatinine and cystatin C serum levels in older patients at preoperation. The ultrasonic assessment of residual bladder volume had no significant influence on the calculation of two-hour creatinine clearance.
- 2013
- Open Journal of Nephrology, v. 3, n. 4, p. 184-188, 2013.
- 184-188
- Renal function
- Creatinine clearance
- Cystatin C
- Elderly
- http://dx.doi.org/10.4236/ojneph.2013.34032
- Acesso aberto
- outro
- http://repositorio.unesp.br/handle/11449/140326
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