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Article: Independent effects of residual renal function and dialysis adequacy on dietary micronutrient intakes in patients receiving continuous ambulatory peritoneal dialysis

TitleIndependent effects of residual renal function and dialysis adequacy on dietary micronutrient intakes in patients receiving continuous ambulatory peritoneal dialysis
Authors
KeywordsCAPD
Issue Date2002
Citation
American Journal of Clinical Nutrition, 2002, v. 76, n. 3, p. 569-576 How to Cite?
AbstractBackground: Dialysis patients are at risk of vitamin and mineral deficiencies, not only because of losses during chronic hemodialysis or peritoneal dialysis but also because of low intakes. Objective: The objective was to determine the importance of urea clearance (calculated as K t/V) and residual renal function (RRF) in predicting micronutrient intakes in a large cohort of patients receiving continuous ambulatory peritoneal dialysis (CAPD). Design: We conducted a survey of dietary intakes in 242 CAPD patients and divided them into 3 groups according to their weekly urea clearance and RRF: WD group (n = 84), a urea clearance ≥ 1.7 and a glomerular filtration rate (GFR) ≥ 1 mL · min -1 · 1.73 m -2; DD group (n = 71), a urea clearance ≥ 1.7 and a GFR < 1 mL · min -1 · 1.73 m -2; and ID group (n = 87), a urea clearance < 1.7. Results: Most of the patients had intakes of water-soluble vitamins and minerals that were lower than the recommended dietary allowance; most intakes were significantly higher in the WD group than in the DD and ID groups, except those of niacin and calcium. After age, sex, body weight, and the presence of diabetes were controlled for, total weekly urea clearance and the GFR (but not peritoneal dialysis urea clearance) were significantly associated with intakes of vitamins A and C, the B vitamins, and minerals (calcium, phosphate, iron, and zinc). Low intakes of vitamins and minerals with low RRF and urea clearance were the result of reduced overall food intakes, except for thiamine, vitamin B-6, and folic acid, which were deficient in the diet. Conclusions: Supplementation with most water-soluble vitamins and minerals, including iron and zinc, should be considered in CAPD patients, especially those with low RRF and low urea clearance. The optimal dose needs to be determined.
Persistent Identifierhttp://hdl.handle.net/10722/228453
ISSN
2015 Impact Factor: 6.703
2015 SCImago Journal Rankings: 3.771

 

DC FieldValueLanguage
dc.contributor.authorWang, Angela Yee Moon-
dc.contributor.authorSea, Mandy Man Mei-
dc.contributor.authorIp, Ricky-
dc.contributor.authorLaw, Man Ching-
dc.contributor.authorChow, Kai Ming-
dc.contributor.authorLui, Siu Fai-
dc.contributor.authorLi, Philip Kam Tao-
dc.contributor.authorWoo, Jean-
dc.date.accessioned2016-08-13T08:02:27Z-
dc.date.available2016-08-13T08:02:27Z-
dc.date.issued2002-
dc.identifier.citationAmerican Journal of Clinical Nutrition, 2002, v. 76, n. 3, p. 569-576-
dc.identifier.issn0002-9165-
dc.identifier.urihttp://hdl.handle.net/10722/228453-
dc.description.abstractBackground: Dialysis patients are at risk of vitamin and mineral deficiencies, not only because of losses during chronic hemodialysis or peritoneal dialysis but also because of low intakes. Objective: The objective was to determine the importance of urea clearance (calculated as K t/V) and residual renal function (RRF) in predicting micronutrient intakes in a large cohort of patients receiving continuous ambulatory peritoneal dialysis (CAPD). Design: We conducted a survey of dietary intakes in 242 CAPD patients and divided them into 3 groups according to their weekly urea clearance and RRF: WD group (n = 84), a urea clearance ≥ 1.7 and a glomerular filtration rate (GFR) ≥ 1 mL · min -1 · 1.73 m -2; DD group (n = 71), a urea clearance ≥ 1.7 and a GFR < 1 mL · min -1 · 1.73 m -2; and ID group (n = 87), a urea clearance < 1.7. Results: Most of the patients had intakes of water-soluble vitamins and minerals that were lower than the recommended dietary allowance; most intakes were significantly higher in the WD group than in the DD and ID groups, except those of niacin and calcium. After age, sex, body weight, and the presence of diabetes were controlled for, total weekly urea clearance and the GFR (but not peritoneal dialysis urea clearance) were significantly associated with intakes of vitamins A and C, the B vitamins, and minerals (calcium, phosphate, iron, and zinc). Low intakes of vitamins and minerals with low RRF and urea clearance were the result of reduced overall food intakes, except for thiamine, vitamin B-6, and folic acid, which were deficient in the diet. Conclusions: Supplementation with most water-soluble vitamins and minerals, including iron and zinc, should be considered in CAPD patients, especially those with low RRF and low urea clearance. The optimal dose needs to be determined.-
dc.languageeng-
dc.relation.ispartofAmerican Journal of Clinical Nutrition-
dc.subjectCAPD-
dc.titleIndependent effects of residual renal function and dialysis adequacy on dietary micronutrient intakes in patients receiving continuous ambulatory peritoneal dialysis-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.pmid12198001-
dc.identifier.scopuseid_2-s2.0-0036720650-
dc.identifier.volume76-
dc.identifier.issue3-
dc.identifier.spage569-
dc.identifier.epage576-

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