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Related Experiment Videos

Glucose absorption during continuous ambulatory peritoneal dialysis

G P Grodstein, M J Blumenkrantz, J D Kopple

    Kidney International
    |April 1, 1981
    PubMed
    Summary

    Patients on continuous ambulatory peritoneal dialysis (CAPD) absorb significant energy from dialysate glucose, averaging 182 g/day. This glucose intake, ranging from 12-34% of total energy, may contribute to anabolic effects during CAPD.

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    Area of Science:

    • Nephrology
    • Metabolic Studies
    • Dialysis

    Background:

    • Continuous ambulatory peritoneal dialysis (CAPD) involves glucose infusion into the peritoneal cavity.
    • Understanding energy derived from dialysate glucose is crucial for patient management.

    Purpose of the Study:

    • To quantify the energy absorbed by patients from dialysate glucose during CAPD.
    • To establish the relationship between dialysate glucose concentration and absorption.
    • To assess the contribution of dialysate glucose to total energy intake.

    Main Methods:

    • Performed 19 studies to measure net glucose absorption in CAPD patients.
    • Utilized varying dialysate dextrose concentrations (1.5 or 4.25 g/dl).
    • Calculated energy intake based on absorbed glucose (kcal/kg/day).

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    Main Results:

    • Net glucose absorption averaged 182 ± 61 g/day.
    • A linear relationship was found between dialysate glucose concentration and absorption (y = 11.3x - 10.9, r = 0.96).
    • Dialysate glucose provided 8.4 ± 2.8 kcal/kg/day, representing 12-34% of total energy intake.

    Conclusions:

    • Dialysate glucose is a significant energy source for CAPD patients.
    • The amount of glucose absorbed daily remained constant regardless of concentration.
    • Modulating dialysate glucose concentration offers a potential method to control energy intake in CAPD.