Abstract
Insufficient sedation in pediatric magnetic resonance imaging (MRI) results in prolonged examination time. To describe the efficacy and side effects of sedation with Phenobarbital short-time infusion followed by continuous gamma-hydroxybutyric acid (GHB) infusion in neonates and children for MRI examinations in a retrospective study. With Institutional Review Board approval 94 children (Group I: 1-4 weeks; Group II: >1 to 6 months; Group III: >6 months) were sedated with phenobarbital 10 mg/kg (maximum 200 mg) intravenously 30 min prior to examination. Than intravenous sedation was maintained with GHB 10 mg/kg/h after a priming dose of 30 mg/kg in 20 min. In group 1 all neonates (n=8) were well sedated without side effect. One of 21 infants in group 2 showed restlessness and the MRI failed. Two of 65 patients of group 3 were not sufficiently sedated and one of them vomited. Non-invasive diagnostic procedures in neonates and children may be managed by phenobarbital and GHB sedation with side effects or failure of 3%.
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