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Related Experiment Videos

Improved cardiovascular variables during acetate free biofiltration.

A M Schrander-vd Meer1, P M ter Wee, G Kan

  • 1Kennemer Gasthuis, Location EG, Haarlem, The Netherlands.

Clinical Nephrology
|June 11, 1999
PubMed
Summary

Acetate-free biofiltration (AFB) offers improved dialysis stability compared to standard hemodialysis (HD). AFB better controls pre-dialysis blood pressure and reduces left ventricular mass index, enhancing cardiovascular status in renal replacement therapy.

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Area of Science:

  • Nephrology
  • Cardiovascular Medicine
  • Renal Replacement Therapy

Background:

  • Acetate-free biofiltration (AFB) is a renal replacement therapy known for good tolerance and efficiency.
  • Bicarbonate hemodialysis (HD) reduced hypotensive episodes compared to acetate-based HD, attributed to improved myocardial contractility.
  • The study aimed to assess if complete acetate absence in AFB further improves dialysis stability and cardiovascular health.

Purpose of the Study:

  • To evaluate the impact of acetate-free biofiltration (AFB) on dialysis stability and cardiovascular parameters.
  • To compare AFB with bicarbonate hemodialysis (HD) in a long-term randomized trial.
  • To determine if eliminating acetate enhances hemodynamic stability and reduces left ventricular mass index.

Main Methods:

Related Experiment Videos

  • A one-year randomized trial comparing 11 patients on AFB with 9 patients on HD.
  • Patients were matched for age, sex, and urea reduction rate.
  • Measurements included automated blood pressure, antihypertensive medication, M-mode echocardiography for left ventricular mass index (LVMi), and serum lipids.

    • Main Results:

    • AFB demonstrated better control of pre-dialysis mean arterial pressure (MAP) compared to HD (p=0.01).
    • Left ventricular mass index (LVMi) significantly decreased in the AFB group, while it increased in the HD group (p=0.03).
    • Post-dialysis MAP remained stable in both groups, and the incidence of hypotensive episodes did not differ significantly.

    Conclusions:

    • AFB offers superior pre-dialysis MAP control and stable post-dialysis MAP compared to HD.
    • AFB led to a significant reduction in left ventricular mass index (LVMi), suggesting cardiovascular benefits.
    • The percentage of hypotensive dialyses was similar between AFB and HD, but AFB showed improved cardiac remodeling markers.