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  • Estimation of renal function in lung cancer patients
    Trobec, Katja ...
    Introduction: In lung cancer patients treated with chemotherapy, renal function is an important parameter to be monitored. Since measurement of renalfunction with either isotope or creatinine ... clearance is time consuming and expensive, we evaluated which of the following equations: Cockcroft-Gault (CG), Wright, modification of diet in renal disease equation (MDRD), MDRD adjusted for body surface area (BSA) and chronic kidney disease epidemiology collaboration (CKD-EPI) best resembles endogenous creatinine clearance (ECC) and could therefore replace its measurement in clinical practice. Methods: 218lung cancer patients, who had their 24-h creatinine secretion in urine measured prior to the start of any chemotherapy, were included. Estimation ofrenal function was calculated and compared to ECC. Results: There were no major differences in the performance of the tested equations. Mean percentage error of more than 20% and general underestimation was common to all equations. Wright equation performed best although it describes only 43% of ECC variability. Mean measured ECC was 94mL/min (95% confidence interval šCIđ:90-98mL/min) and 90mL/min for Wright equation (95% CI: 87-93mL/min) (Supp. Fig. 3). MDRD and CKD-EPI equation performed poorest since they do not include any body size descriptor. Large deviations of differences were observed, with a median standard deviation of more than 20% and deviations from ECC exceeding 100%. Wright equation performed best, whereas, despite their leading role in the detection of renal diseases, the MDRD and CKD-EPI equation performed poorest since they do not include any body size descriptor.In the range of ECC<50mL/(minx1.73m(2)), the CG equation most oftendetected a contraindication for cisplatin use. Differences between ECC and calculated values correlated with patients' weight, BSA and body mass index when these were not included in the equation itself. (Abs. trunc. at 2000 ch.)
    Source: Lung cancer. - ISSN 0169-5002 (Vol. 76, iss. 3, 2012, str. 397-402)
    Type of material - article, component part
    Publish date - 2011
    Language - english
    COBISS.SI-ID - 29341145
    DOI

source: Lung cancer. - ISSN 0169-5002 (Vol. 76, iss. 3, 2012, str. 397-402)
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