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Related Experiment Videos

Prolonged intraperitoneal dwell decreases ultrafiltration coefficient in rabbits.

J F Maher1, P Hirszel, A Shostak

  • 1Department of Medicine, F. Edward Hebert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814-4799.

American Journal of Kidney Diseases : the Official Journal of the National Kidney Foundation
|July 1, 1988
PubMed
Summary

Hypertonic dialysis solutions initially boost fluid removal in rabbits but decrease efficiency over time due to prolonged dwell times. Brief use is recommended to maximize ultrafiltration and minimize dextrose absorption.

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Area of Science:

  • Nephrology
  • Physiology

Background:

  • Peritoneal dialysis (PD) is a renal replacement therapy.
  • Hypertonic dialysis solutions are used to enhance ultrafiltration (UF).

Purpose of the Study:

  • To investigate the effects of hypertonic (6% dextrose) dialysis solution on ultrafiltration in rabbits.
  • To evaluate the impact of dwell time on UF and dextrose absorption.

Main Methods:

  • Rabbits underwent peritoneal dialysis with 6% dextrose solution.
  • Measurements included net ultrafiltration rate (UF), osmotic gradient, ultrafiltration coefficient, and dextrose absorption.
  • Dwell times were varied to assess their impact.

Main Results:

  • Hypertonic solution initially increased net UF, but the ultrafiltration coefficient decreased, indicating reduced efficiency.

Related Experiment Videos

  • Prolonged dwell times led to decreased gross and net UF and ultrafiltration coefficients.
  • Ultrafiltration per dextrose absorbed also declined with longer dwell times.

    • Conclusions:

    • The efficiency of hypertonic dialysis solutions decreases with prolonged dwell times in rabbits.
    • Fluid and solute stagnation contribute to reduced ultrafiltration.
    • Brief administration of excessively hypertonic solutions is advised for efficient ultrafiltration and to limit dextrose loading.