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Researchers from University College London Describe Findings in Blood Pressure

2013 JAN 21 (NewsRx) -- By a News Reporter-Staff News Editor at Hematology Week -- Investigators publish new report on Blood Pressure. According to news reporting out of London, United Kingdom, by NewsRx editors, research stated, "Sodium balance during hemodialysis is predominantly achieved by ultrafiltration. The additional effect of diffusional sodium losses and gains remains unclear We recently changed our dialysate acid concentrate supplier, and although both concentrates were instructed to be diluted 1:44, we audited the practical effects of this change."

Our news journalists obtained a quote from the research from University College London, "Review of electronic dialysis and laboratory records of patients attending a satellite dialysis center. 91 adult hemodialysis patients, mean age 61.4 +/- 1.7 years, 65% male, 52% diabetic, median dialysate sodium machine setting at 137 mmol/l (137-138), following change in acid dialysate patients dialyzed against a mean measured dialysate sodium of 4.8 (95%cCL 3.6-6.1) mmol/l higher than setting. After six weeks, pre-dialysis weight increased from 75.5 +/- 1.9 kg to 76.6 +/- 1.9 kg, p<0.001, with increased mean weight loss on dialysis from 2.38 +/- 0.1% to 3.28 +/- 0.13%, p<0.001, and increase in pre-dialysis mean arterial blood pressure from 91.2 +/- 1.5 mm Hg to 95.4 +/- 1.5 mm Hg, p<0.001. Post-dialysis serum sodium increased from 0 (-3 to +3) mmol/l to +3 (1 to 5.5) mmol/l compared to pre-dialysis value, p<0.001. Monthly symptomatic episodes of intradialytic hypotension fell from 69 to 46. After correcting the dialysate sodium setting, blood pressure and weight gains resolved over 4 weeks. Changing dialysate acid concentrates, both labeled 1:44 dilution, led to the delivery of a higher dialysate sodium, resulting in weight gains, increased pre-dialysis blood pressure, but less symptomatic intradialytic hypotension."

According to the news editors, the research concluded: "Following readjustment of volumetric dialysate mixing, excess weight gains and increased blood pressure resolved over 4 weeks, highlighting the importance of checking the delivered dialysate sodium following a change in dialysate acid concentrate."

For more information on this research see: Weight gains and increased blood pressure in outpatient hemodialysis patients due to change in acid dialysate concentrate supplier. International Journal of Artificial Organs, 2012;35(9):642-647. International Journal of Artificial Organs can be contacted at: Wichtig Editore, 72, 74 Via Friuli, 20135 Milan, Italy.

Our news journalists report that additional information may be obtained by contacting E. Sandhu, UCL, Sch Med, UCL Center Nephrol, University College London, London NW3 2PF, United Kingdom.

Keywords for this news article include: London, Europe, Hemodialysis, United Kingdom, Blood Pressure, Renal Dialysis

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2013, NewsRx LLC

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