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Gamma-hydroxybutyric acid sedation in neonates and children undergoing MR imaging
1Department of Neonatology, University Children's Hospital, Heidelberg, Germany. johannes.Poeschl@med.uni-heidelberg.de
Insights
Phenobarbital and gamma-hydroxybutyric acid (GHB) sedation effectively manages pediatric MRI scans, with only a 3% failure or side effect rate in neonates and children.
Area of Science:
- Pediatric imaging
- Sedation protocols
- Neuroscience
Background:
- Pediatric MRI sedation is crucial for efficient examinations.
- Insufficient sedation prolongs pediatric MRI procedures.
- Evaluating novel sedation regimens is essential.
Purpose of the Study:
- To assess the efficacy and safety of phenobarbital followed by GHB infusion for pediatric MRI sedation.
- To determine the success rate and adverse events of this combined sedation protocol.
Main Methods:
- Retrospective study of 94 pediatric patients undergoing MRI.
- Sedation administered as a phenobarbital infusion followed by continuous GHB infusion.
- Patients categorized into three age groups: neonates, infants, and older children.
Main Results:
- Neonates (Group I) showed excellent sedation without side effects.
- One infant (Group II) experienced restlessness, leading to MRI failure.
- Two older children (Group III) had insufficient sedation, with one instance of vomiting.
Conclusions:
- Phenobarbital and GHB combination is effective for pediatric MRI sedation.
- The combined regimen demonstrated a low failure and side effect rate of 3%.
- This protocol offers a viable option for non-invasive diagnostic procedures in pediatric patients.
Background:
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.
Patients:
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.
Results:
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.
Conclusions:
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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