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Parasympathetic function in haemodialysis patients.

C Zoccali, M Ciccarelli, F Mallamaci

    Nephron
    |January 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

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    Chronic haemodialysis patients show compromised parasympathetic function, but this neuropathy does not worsen over time. Long-term haemodialysis appears to halt further parasympathetic nerve damage in chronic renal failure patients.

    Area of Science:

    • Nephrology
    • Neurology
    • Autonomic Nervous System Research

    Background:

    • Patients with chronic renal failure often develop autonomic dysfunction.
    • Parasympathetic neuropathy is a known complication in this patient population.
    • The long-term impact of haemodialysis on this neuropathy requires further investigation.

    Purpose of the Study:

    • To investigate the long-term course of parasympathetic neuropathy in patients with chronic renal failure undergoing haemodialysis.
    • To determine if the duration of haemodialysis correlates with the severity of parasympathetic dysfunction.
    • To assess the progression of parasympathetic neuropathy over a 4-year period.

    Main Methods:

    • Utilized established tests of parasympathetic function, including the deep breathing test and atropine test.

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  • Assessed 45 patients on chronic haemodialysis (1-12 years) and 34 healthy controls.
  • Re-evaluated 13 patients after a 4-year interval to monitor neuropathy progression.

    • Main Results:

    • Dialysis patients exhibited significantly compromised parasympathetic function compared to controls.
    • No correlation was found between the duration of haemodialysis and the degree of parasympathetic impairment.
    • No evidence of neuropathy progression was observed in patients reassessed after 4 years.

    Conclusions:

    • Chronic haemodialysis treatment appears to stabilize or halt the progression of parasympathetic neuropathy in patients with chronic renal failure.
    • Autonomic dysfunction in these patients may be established prior to or early in the course of haemodialysis.
    • Further research is needed to elucidate the mechanisms behind haemodialysis-induced stabilization of parasympathetic function.