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[Water intoxication].

B Truniger

    Zeitschrift Fur Die Gesamte Innere Medizin Und Ihre Grenzgebiete
    |September 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

    Water intoxication, or excess water, primarily causes central nervous system disturbances, not fluid overload. Impaired water elimination, not excessive intake, is often the main cause, particularly in Schwartz-Bartter syndrome.

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    Area of Science:

    • Nephrology
    • Endocrinology
    • Internal Medicine

    Background:

    • Water intoxication presents with atypical symptoms, primarily neurological, rather than overt fluid overload.
    • Laboratory findings such as hypoosmolarity and hyponatremia confirm excess free water, though exceptions exist.

    Observation:

    • Decreased water elimination capacity is a more significant pathogenic factor than excessive water intake.
    • Schwartz-Bartter syndrome (inappropriate antidiuretic hormone secretion) is increasingly recognized as a cause, alongside renal insufficiency.

    Findings:

    • Hypoosmolarity and hyponatremia are key indicators of excess free water.
    • Pathogenesis often involves impaired renal water excretion rather than simple overconsumption.

    Implications:

    • Therapy focuses on restricting free water intake and treating the underlying cause.
    • Hypertonic saline and dialysis are reserved for exceptional cases of severe water intoxication.