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  • Title: 1997 Peritoneal Dialysis-Core Indicators Study: Dialysis Adequacy and Nutritional Indicators Report.
    Author: Flanigan MJ, Rocco MV, Frankenfield D, Bailie G, Frederick P, Prowant B, Taylor L.
    Journal: Am J Kidney Dis; 1999 Jun; 33(6):e3. PubMed ID: 10352219.
    Abstract:
    The 1997 Peritoneal Dialysis-Core Indicators Study: Dialysis Adequacy and Nutritional Indicators Report documents the current status of peritoneal dialysis within the United States. A national random sample of adult peritoneal dialysis (PD) patients participating in the United States End Stage Renal Disease (ESRD) program was surveyed. PD subjects were large, with a mean body weight of 76 +/- 18.9 kg (mean +/- 1 SD) and a body mass index (BMI) of 27 +/- 6.4. The dialysis prescriptions documented achieved a mean weekly Kt/Vurea (wKt/V) and weekly creatinine clearance (wCrCl) of 2. 45 +/- 2.29 and 65.5 +/- 35.2 L/wk/1.73m2, respectively. The serum albumin of these patients was 3.5 +/- 0.48 g/dL, their normalized protein equivalent of nitrogen appearance (nPNA) 1.0 +/- 0.63 g/kg/d, and their normalized creatinine appearance rate (nCAR) 14 +/- 6.0 mg/kg/d. Serum albumin correlated meagerly but in a positive fashion with BMI, nPNA, and nCAR, and negatively with wCrCl. Among adult US PD patients, serum albumin values appear to correlate poorly with alternative measures of nutritional status and are inversely related to the intensity of renal replacement therapy. The presumptive dietary protein intake (nPNA) and creatinine appearance rate (nCAR) derived for PD patients do correlate in a positive fashion with dialysis delivery, at least up to a wCrCl of 60 to 80 L/wk/1.73 m2 and wKt/V = 2.1, but their values suggest that 30% to 50% of PD patients have marginal nutritional status.
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