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  • Title: Behavioral intervention to reduce water intake in the syndrome of psychosis, intermittent hyponatremia, and polydipsia.
    Author: Pavalonis D, Shutty M, Hundley P, Leadbetter R, Vieweg V, Downs M.
    Journal: J Behav Ther Exp Psychiatry; 1992 Mar; 23(1):51-7. PubMed ID: 1430251.
    Abstract:
    We describe a non-intensive behavioral intervention using an A-B design with extended follow-up on an open psychiatric unit to reduce water intake in a 52-year-old man with the syndrome of psychosis, intermittent hyponatremia, and polydipsia. A reinforcement schedule contingent upon weight gain secondary to water intake was employed. Mean diurnal weight gain was 7.1 pounds during a 23-week baseline which dropped to 4.1 pounds following 23 weeks of treatment and at a 1-year follow-up. Estimated fluid consumption dropped from 10 liters to 4 liters daily and incidents of hyponatremia decreased by 62%.
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