title: [Estimation of body composition in patients on dialysis by means of near-infrared interaction ].
abstract: Malnutrition and low serum albumin values predict increased mortality in uremic patients. Infrared interactance represents a novel approach to the estimation of body composition. We have examined total body fat, body water and fat-free weight in our male haemodialysis (n = 24) and peritoneal dialysis (n = 17) patients. There were no differences between the groups in a cross-sectional study. A longitudinal study showed a significant increase of total body fat (%) in the peritoneal dialysis patients after five months (mean values +/- SEM) (from 19.8 +/- 2.3 to 22.6 +/- 2.4, p < 0.05), and a significant decrease of body water (%) (from 59.9 +/- 1.5 to 58.2 +/- 1.6, p < 0.05). The difference in total body fat between the haemodialysis (n = 14) and peritoneal dialysis (n = 10) groups reached statistical significance (16.5 +/- 1.7 versus 22.6 +/- 2.4, p < 0.05). No difference was found in serum albumin. Infrared interactance has the capacity to characterize time-dependent differential changes of body composition in various dialysis modalities. Further studies are needed to describe the validity of the method for identification of patients with increasing malnutrition.
authors.affiliation: Medisinsk avdeling, Haukeland sykehus, Bergen.
authors.forename: E
authors.initials: E
authors.lastname: Svarstad
authors.forename: Y
authors.initials: Y
authors.lastname: Willassen
authors.forename: B M
authors.initials: BM
authors.lastname: Iversen
mesh_terms: D000368:Aged; D001823:Body Composition; D015992:Body Mass Index; D003430:Cross-Sectional Studies; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D009664:Norway / Q000453:epidemiology; D015596:Nutrition Assessment; D009748:Nutrition Disorders / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology; D010530:Peritoneal Dialysis / Q000009:adverse effects*; D006435:Renal Dialysis / Q000009:adverse effects*; D013055:Spectrophotometry, Infrared / Q000295:instrumentation*
vernacular_title: Estimering av kroppssammensetning hos dialysepasienter ved hjelp av naer infrarød interaksjon.