Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ORIGINAL ARTICLES
The Serum Lipids Levels may be Underestimated in Patients on Hemodialysis
Toshinori UenoShigehiro DoiAyumu NakashimaYukio YokoyamaToshiki DoiToru KawaiYoshie KusanoChikako UedaTakao Masaki
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JOURNALS OPEN ACCESS

Volume 54 (2015) Issue 8 Pages 887-894

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Abstract

Objective Although lipid disorders are a well-known risk factor for cardiovascular disease (CVD) in the general population, the optimal management with lipid-lowering therapy to reduce CVD risks and mortality in hemodialysis (HD) patients remains controversial. In the clinical setting, dyslipidemia can be diagnosed based on the detection of elevated lipid concentrations at the beginning of HD. This study investigated changes in the levels of serum lipids during a single HD session.
Methods The serum total cholesterol, triglyceride and high-density lipoprotein (HDL) cholesterol levels were measured in 31 HD patients at zero, two and four hours after the beginning of a single HD session. The data were analyzed using the Wilcoxon signed-rank test, a linear mixed model and Spearman's rank correlation analysis.
Results The serum total cholesterol, HDL cholesterol and non-HDL cholesterol levels increased significantly during the HD session. Even after the lipid parameters were corrected for changes in the total protein level, the total cholesterol and HDL cholesterol levels increased, whereas the non-HDL cholesterol levels did not change significantly. The percentage change in the serum levels of these lipid fractions correlated strongly with the percentage change in the ultrafiltration volume per body weight. In contrast, the serum triglyceride levels were decreased significantly at two hours compared with the levels noted at the beginning of HD and gradually increased at four hours.
Conclusion The serum lipid levels are influenced significantly by HD treatment and ultrafiltration. Evaluating the degree of dyslipidemia at the beginning of a HD session may therefore underestimate the levels of serum lipids in HD patients with a large amount of weight gain, thus resulting in the use of insufficient lipid-lowering therapy.

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© 2015 by The Japanese Society of Internal Medicine
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