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Impact of Metabolic Acidosis on Serum Albumin and Other Nutritional Parameters in Long Term CAPD Patients

Authors
 Shin Wook Kang  ;  Seoung Woo Lee  ;  In Hee Lee  ;  Beom Seok Kim  ;  Kyu Hun Choi  ;  Ho Yung Lee  ;  Dae Suk Hanl 
Citation
 Advances in Peritoneal Dialysis, Vol.13 : 249-252, 1997 
Journal Title
 Advances in Peritoneal Dialysis 
ISSN
 1197-8554 
Issue Date
1997
MeSH
Acidosis/blood* ; Acidosis/complications ; Blood Urea Nitrogen ; Body Weight ; Carbon Dioxide/metabolism ; Creatinine/metabolism ; Female ; Humans ; Kidney Failure, Chronic/blood ; Male ; Middle Aged ; Nutritional Status* ; Peritoneal Dialysis, Continuous Ambulatory* ; Proteins/metabolism ; Retrospective Studies ; Serum Albumin/analysis* ; Urea/metabolism
Abstract
o evaluate the effects of metabolic acidosis on serum albumin and other nutritional parameters in long-term continuous ambulatory peritoneal dialysis (CAPD) patients, we undertook a retrospective study involving 106 CAPD patients who had monthly biochemical measurements and urea kinetic studies every 6 months for more than 2 years. The patients were divided into three groups according to their mean total CO2 (tCO2) level of the 2-year follow-up (Group I: mean tCO2 < 22 mmol/L; Group II: 22 mmol/L < or = tCO2 < 26 mmol/L; Group III: mean tCO2 > or = 26 mmol/L), and the clinical, biochemical, and urea kinetic data were compared between the three groups. The mean tCO2 in Groups I, II, and III were 20.62 +/- 1.2 mmol/L, 23.91 +/- 1.1 mmol/L, and 27.3 +/- 0.8 mmol/L, respectively. The percentage of body weight (Bwt) to ideal body weight (IBW) was significantly higher in Group I (113.1 +/- 15.3%) compared to Group II (103.5 +/- 11.5%) and Group III (98.7 +/- 8.0%) (p < 0.05), but the percentage of lean body mass (LBM) to Bwt was not different between the three groups. Compared to Group III, Group I had significantly higher blood urea nitrogen (BUN) (61.1 +/- 14.3 vs 46.1 +/- 7.2 mg/dL, p < 0.05), serum albumin (4.04 +/- 0.31 vs 3.75 +/- 0.39 g/dL, p < 0.05), and normalized protein equivalent to nitrogen appearance (NPNA) (1.02 +/- 0.21 vs 0.88 +/- 0.14 g/kg/day, p < 0.05), and more ultrafiltration volume (1.4 +/- 0.4 vs 1.0 +/- 0.3 L/day, p < 0.05), in spite of comparable dialysis dose and albumin loss into the dialysate. No differences were observed in the three groups in the changes of tCO2, Bwt/IBW, LBM/Bwt, BUN, and albumin from the baseline values after the 2-year follow-up. Using stepwise multiple regression analysis, NPNA, Bwt/IBW, and ultrafiltration volume were independent factors affecting mean tCO2 level. In conclusion, low tCO2 levels in long-term CAPD patients may reflect increased protein intake, and the mild to moderate degrees of metabolic acidosis may not affect the nutritional status of well-dialyzed CAPD patients.
Full Text
http://www.advancesinpd.com/
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kang, Shin Wook(강신욱) ORCID logo https://orcid.org/0000-0002-5677-4756
Han, Dae Suk(한대석)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/177248
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