Abstract
We aimed to assess the efficacy of oral use of oral desamino-D-arginine-8-vasopressin lyophilisate (OLD) in children with central diabetes insipidus (CDI). Clinical, laboratory, and imaging characteristics of twenty-five children with CDI treated with OLD were evaluated. Fourteen boys and eleven girls with a mean age of 52.37 months were evaluated. These children (mean weight and height at admission, 26.81±14.8 kg vs. 92.52±30 cm) presented with failure to thrive, irritability, prolonged fever, polyuria and hypernatremia (mean sodium level, 143.12±8.6 mEq/L). At the time of hypernatremia, mean serum and urine osmolality were 298.2±18 mOsm/kg and 160.20±8.7 mOsm/kg, respectively. ADH levels were undetectable (<0.5 pmol/L) at admission in all cases. Oral administration of desmopressin lyophilisate (120 µg/tablet) was initiated at a dose of 5 μg/kg/day in two divided doses together with controlled water intake to avoid hyponatremia. Serum sodium levels normalised in a mean durationof 15.2±16.4 h with a mean decline rate of 0.12±0.04 mEq/L/h. Nine children needed rehospitalization because of hypernatremia due to non-compliance. Four episode of hyponatremia was observed. Weight gain and growth were normal during the mean follow-up duration of 37.79±48.2 months. Administration of OLD was practical and safe in the treatment of CDI in children with CNS malformations in this small retrospective series.
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