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  • Title: Desmopressin associated symptomatic hyponatremic hypervolemia in children. Are there predictive factors?
    Author: Thumfart J, Roehr CC, Kapelari K, Querfeld U, Eggert P, Müller D.
    Journal: J Urol; 2005 Jul; 174(1):294-8; discussion 298. PubMed ID: 15947670.
    Abstract:
    PURPOSE: Desmopressin is widely used in primary nocturnal enuresis, bleeding disorders, central diabetes insipidus and diagnostic urine concentration testing. Hyponatremic hypervolemia leading to seizures has been reported as a rare but potentially life threatening side effect of desmopressin therapy. We sought to identify factors that predispose patients to hyponatremia and to find predictive factors associated with increased risk of water intoxication. MATERIALS AND METHODS: We report 13 novel cases of desmopressin associated water intoxication and review the literature. A total of 93 instances of symptomatic hyponatremia during desmopressin treatment in children were identified. Specific data were reported in 58 of 93 cases. These 58 cases, in addition to our 13 novel cases, were further analyzed. RESULTS: All children were treated with intranasal or intravenous desmopressin. No patient received oral desmopressin. Younger children are at greater risk for water intoxication than older children. The risk is particularly high at the beginning of desmopressin therapy. A total of 45 patients (63%) had prodromal symptoms, eg nausea, vomiting and headache. In 10 cases (14%) desmopressin was prescribed without an evident need. CONCLUSIONS: Based on this analysis, we conclude that the use of desmopressin should be cautiously considered, careful monitoring should be performed during the initiation of therapy, and particular care should be taken when treating young children and when prodromal symptoms such as nausea, vomiting and headaches occur.
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