Document Detail

The effect of hemodialysis ultrafiltration on changes in whole blood viscosity.
MedLine Citation:
PMID:  22360439     Owner:  NLM     Status:  Publisher    
Increased whole blood viscosity (WBV) can be injurious to the vascular endothelium and increase the risk of atherothrombotic events. This study examined the effect of hemodialysis ultrafiltration (UF) on WBV, with a focus on high vs. low-volume UF patients. In stable hemodialysis patients, blood was drawn for hematocrit (Hct) and WBV at the start, midpoint, and at the end of dialysis. For analysis, patients were divided into high UF (≥2700 mL) or low UF (<2700 mL) groups. A total of 59 patients completed the study. Mean Hct increased during dialysis in both groups. The intradialytic increase in Hct was significantly greater in the high vs. the low UF group (3.2% vs. 1.28%, P = 0.01), with a significantly higher end-dialysis Hct in the high UF group (40.5% vs. 38%, P = 0.02). At the end of dialysis, both high shear rate WBV (P < 0.01) and low shear rate WBV (P < 0.01) were significantly higher in the high UF compared with the low UF group. There was an approximately two-fold greater increase in high shear rate (P < 0.01) and low shear rate (P = 0.01) WBV during dialysis in high vs. low UF groups. The increase in high shear rate WBV during dialysis was significantly correlated with an increase in Hct (R(2)  = 0.63, P < 0.01). We found that hemodialysis UF causes a surge in WBV. The surge was of greater magnitude in high than in low UF patients.
Shayan Shirazian; Liliana Rios-Rojas; James Drakakis; Sudharani Dikkala; Paula Dutka; Marc Duey; Daniel J Cho; Steven Fishbane
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-23
Journal Detail:
Title:  Hemodialysis international. International Symposium on Home Hemodialysis     Volume:  -     ISSN:  1542-4758     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-2-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101093910     Medline TA:  Hemodial Int     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 The Authors. Hemodialysis International © 2012 International Society for Hemodialysis.
Division of Nephrology, Winthrop University Hospital, Mineola, New York, USA.
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