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Related Experiment Videos

[Peritoneal equilibrium test using icodextrin and glucose at different concentrations].

A Guerrero1, R Montes, C Martín-Herrera

  • 1Servicio Nefrología Hospital Virgen del Rocío Hacienda el Carmen, 54 Tomares, Sevilla.

Nefrologia : Publicacion Oficial De La Sociedad Espanola Nefrologia
|October 9, 2002
PubMed
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Icodextrin and glucose dialysates were compared in peritoneal dialysis patients. Icodextrin maintained iso-osmolarity, while 3.86% glucose showed higher ultrafiltration and creatinine clearance but lower sodium levels.

Area of Science:

  • Nephrology
  • Peritoneal Dialysis
  • Biomaterials Science

Background:

  • Peritoneal dialysis (PD) utilizes semipermeable membranes for solute and fluid removal.
  • Dialysate composition significantly influences ultrafiltration and solute transport dynamics.
  • Icodextrin offers an alternative osmotic agent to glucose in PD solutions.

Purpose of the Study:

  • To compare peritoneal permeability to water and solutes using icodextrin versus glucose (1.36% and 3.86%) dialysates.
  • To evaluate the osmotic and transport characteristics of icodextrin during a standard Peritoneal Equilibrium Test (PET).

Main Methods:

  • 14 PD patients underwent Peritoneal Equilibrium Tests (PETs) with icodextrin.
  • Subgroups of patients were tested with 1.36% and 3.86% glucose solutions.

Related Experiment Videos

  • Samples were collected over 240 minutes to assess solute concentrations and fluid balance.

    • Main Results:

    • Icodextrin remained iso-osmolar, unlike glucose solutions which showed decreasing osmolarity.
    • 3.86% glucose yielded higher drained fluid volume and creatinine clearance compared to icodextrin and 1.36% glucose.
    • Peritoneal permeability to water and small solutes differed between icodextrin and high-concentration glucose.

    Conclusions:

    • Icodextrin maintains plasma iso-osmolarity during a 4-hour dwell, suggesting different transport mechanisms compared to high-concentration glucose.
    • Ultrafiltration and solute clearances are generally lower with icodextrin than with 3.86% glucose.
    • The choice of dialysate impacts fluid and solute transport, influencing PD efficacy.