| Resting energy expenditure in peritoneal dialysis patients. | |
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MedLine Citation:
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PMID: 17047238 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: This study aimed to evaluate whether resting energy expenditure (REE) of patients undergoing peritoneal dialysis (PD) therapy differs from that of healthy individuals, as well as to investigate the factors associated with REE in this sample of patients. DESIGN: Cross-sectional study. SETTING: Dialysis Unit of the Nephrology Division, Federal University of Sao Paulo-Oswaldo Ramos Foundation, Brazil. Subjects and METHODS: The study examined the REE of 37 patients (20 males, age 44.5 +/- 13 years) undergoing PD therapy. Only patients older than 18 years, on PD for at least 3 months, without catabolic illness, and with normal thyroid function were included. Patients were pair matched for age and gender with 37 healthy individuals. REE was measured by indirect calorimetry. Body composition was assessed by dual-energy x-ray absorptiometry in the patients and by bioelectrical impedance in the healthy individuals. RESULTS: The REE of PD patients was similar to that of pair-matched controls (1372 +/- 266 and 1453 +/- 252 kcal/day respectively, p = 0.13) even when adjusted for lean body mass and gender (p = 0.56). The REE of PD patients was positively correlated with lean body mass (r = 0.60, p < 0.01), fat mass (r = 0.43, p < 0.01), body mass index (r = 0.60, p < 0.01), serum glucose (r = 0.36, p < 0.05), and protein equivalent of nitrogen appearance (PNA; r = 0.42, p < 0.01). There were no correlations between REE and glucose absorption, dialysis-related parameters, C-reactive protein, and energy or protein intake by 3-day food diary. In the multiple linear regression analysis, using REE as the dependent variable, the final model showed that lean body mass and female gender were determinants of REE in PD patients (R(2) = 0.44). When separate analysis by gender was performed, REE correlated directly with body fat in female patients (r = 0.70, p < 0.01) but not in male patients (r = 0.29, p = 0.21). On the other hand, lean body mass was significantly correlated with REE in male patients (r = 0.78, p < 0.01) but not in female patients (r = 0.47, p = 0.06). CONCLUSIONS: This study showed that REE of PD patients did not differ from that of healthy individuals. The strong association between body fat and REE in female patients remains to be further investigated. |
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Authors:
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Ana P Bazanelli; Maria A Kamimura; Camila Barbosa da Silva; Carla M Avesani; Miriam G Garcia Lopes; Silvia R Manfredi; Sergio A Draibe; Lilian Cuppari |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Peritoneal dialysis international : journal of the International Society for Peritoneal Dialysis Volume: 26 ISSN: 1718-4304 ISO Abbreviation: Perit Dial Int Publication Date: 2006 Nov-Dec |
Date Detail:
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Created Date: 2006-10-18 Completed Date: 2010-06-04 Revised Date: 2012-08-08 |
Medline Journal Info:
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Nlm Unique ID: 8904033 Medline TA: Perit Dial Int Country: Canada |
Other Details:
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Languages: eng Pagination: 697-704 Citation Subset: IM |
Affiliation:
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Nutrition Program, Federal University of São Paulo, São Paulo, Brazil. |
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Cross-Sectional Studies Energy Metabolism* Female Humans Male Peritoneal Dialysis* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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