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10.1159/000259902 http://scihub22266oqcxt.onion/10.1159/000259902 19923801!ä!19923801 Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=19923801&cmd=llinks): Failed to open stream: HTTP request failed! 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Measurement error in estimated GFR slopes across transplant chronic kidney disease stages |pdf=|usr=}}{{19923801}} gab.com Text Measurement error in estimated GFR slopes across transplant chronic kidney disease stages JO: Am J Nephrol http://www.kidney.de/pget.php?&tw=1&pmid=19923801 #FOAvip BACKGROUND: This study examines if transplant glomerular filtration rate (GFR) slope prediction is affected by the degree of transplant chronic kidney disease (CKDT) stage. METHODS: Serial changes in estimated GFR (DeltaeGFR) by Cockcroft-Gault (CG) and Modified Diet in Renal Disease-Isotope Dilution Mass Spectrometry (MDRD-IDMS) equations were compared to simultaneous changes in isotope GFR (DeltaiGFR) in renal transplant patients who had at least four scans. RESULTS: Total number of patients (iGFR scans) was 99 (772) while the corresponding numbers in CKDT stages 1-4 were 33 (103), 69 (239), 75 (316) and 37 (96), respectively. Measurement error [(DeltaeGFR - DeltaiGFR) x 100/DeltaiGFR] (median +/- IQR, interquartile range) estimated from CG and MDRD-IDMS slopes were -414.29 +/- 276.16% and -342.86 +/- 210.18% (stage 1); -350.00 +/- 301.22% and -300.00 +/- 525.00% (stage 2); -26.02 +/- 404.38% and -26.58 +/- 423.13% (stage 3); 10.26 +/- 142.18% and -76.92 +/- 145.64% (stage 4), respectively. The proportion of patients with CG measurement error < or =1-fold in stages 1 and 2 of 12 and 14.5% was significantly (p < 0.05) lower than that of 36.3 and 52.8% at stages 3 and 4, respectively. Similar measurement errors were observed for MDRD-IDMS. CONCLUSIONS: Transplant GFR slope prediction is affected by the degree of renal dysfunction. Errors in slope prediction are much higher in those with better function and thus add another limitation for eGFR use in longitudinal studies on progressive graft dysfunction. Twit Text FOAVip Measurement error in estimated GFR slopes across transplant chronic kidney disease stages ????Am J Nephrol http://www.kidney.de/pget.php?&tw=1&pmid=19923801 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=19923801 #FOAvip English Wikipedia <ref>{{Cite pmid|19923801}}</ref> Measurement error in estimated GFR slopes across transplant chronic kidney disease stages #MMPMID19923801 Hossain MA; Attia A; Shoker A Am J Nephrol 2010[]; 31 (2): 151-9 PMID19923801show ga BACKGROUND: This study examines if transplant glomerular filtration rate (GFR) slope prediction is affected by the degree of transplant chronic kidney disease (CKDT) stage. METHODS: Serial changes in estimated GFR (DeltaeGFR) by Cockcroft-Gault (CG) and Modified Diet in Renal Disease-Isotope Dilution Mass Spectrometry (MDRD-IDMS) equations were compared to simultaneous changes in isotope GFR (DeltaiGFR) in renal transplant patients who had at least four scans. RESULTS: Total number of patients (iGFR scans) was 99 (772) while the corresponding numbers in CKDT stages 1-4 were 33 (103), 69 (239), 75 (316) and 37 (96), respectively. Measurement error [(DeltaeGFR - DeltaiGFR) x 100/DeltaiGFR] (median +/- IQR, interquartile range) estimated from CG and MDRD-IDMS slopes were -414.29 +/- 276.16% and -342.86 +/- 210.18% (stage 1); -350.00 +/- 301.22% and -300.00 +/- 525.00% (stage 2); -26.02 +/- 404.38% and -26.58 +/- 423.13% (stage 3); 10.26 +/- 142.18% and -76.92 +/- 145.64% (stage 4), respectively. The proportion of patients with CG measurement error < or =1-fold in stages 1 and 2 of 12 and 14.5% was significantly (p < 0.05) lower than that of 36.3 and 52.8% at stages 3 and 4, respectively. Similar measurement errors were observed for MDRD-IDMS. CONCLUSIONS: Transplant GFR slope prediction is affected by the degree of renal dysfunction. Errors in slope prediction are much higher in those with better function and thus add another limitation for eGFR use in longitudinal studies on progressive graft dysfunction. |*Glomerular Filtration Rate[MESH] |Adult[MESH] |Chronic Disease[MESH] |Creatinine/blood[MESH] |Disease Progression[MESH] |Female[MESH] |Follow-Up Studies[MESH] |Humans[MESH] |Kidney Diseases/*therapy[MESH] |Kidney Transplantation/*methods[MESH] |Longitudinal Studies[MESH] |Male[MESH] |Middle Aged[MESH] |Regression Analysis[MESH]Measurement error in estimated GFR slopes across transplant chronic ki(epmc).pdf DeepDyve Pubget Overpricing