Treatment of acute sickle cell crises with a vasopressin analogue

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Abstract
Eight patients with sickle cell anemia were treated for acute painful crises with DDAVP and intravenous fluids; five were treated with placebo and the same regimen of fluid administration. Although hyponatremia was produced in both treatment groups, duration of hospitalization did not differ between them, nor did it differ from concurrent hospitalization of other patients who received conventional treatment. Safe induction of hyponatremia required intensive laboratory surveillance, and serum sodium could be lowered without use of DDAVP. These data suggest that a controlled trial hyponatremia for acute sickle cell crises should not be performed.