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Comparison between chloral hydrate and propofol-ketamine as sedation regimens for pediatric auditory brainstem
Kamal Abulebda1, Vinit J Patel1, Sheikh S Ahmed1
1Indiana University Health, Indiana University School of Medicine and Riley Hospital for Children, Department of Pediatrics, Section of Pediatric Critical Care Medicine, Indianapolis, United States.
Insights
Propofol-ketamine sedation is more efficient for auditory brainstem response testing in children than chloral hydrate. However, propofol-ketamine increases the risk of transient hypoxemia, requiring careful monitoring.
Area of Science:
- Pediatric Anesthesiology
- Neurophysiology
- Diagnostic Testing
Background:
- Auditory brainstem response (ABR) testing under sedation is the standard for infants and young children.
- Assessing hearing in non-cooperative pediatric populations is critical.
Purpose of the Study:
- To compare the efficacy and safety of propofol-ketamine versus oral chloral hydrate for sedating children during ABR testing.
- Evaluating sedative effectiveness, adverse events, and procedural efficiency.
Main Methods:
- Retrospective review of 190 pediatric patients (4 months to 6 years) undergoing ABR testing.
- Analysis of drug doses, adverse effects, sedation duration, and procedure success rates for two sedative regimens.
Main Results:
- Propofol-ketamine (n=117) showed higher success rates than chloral hydrate (n=73).
- Shorter procedure, recovery, and nursing times were observed with propofol-ketamine.
- The propofol-ketamine group had a higher incidence of transient hypoxemia.
Conclusions:
- Both propofol-ketamine and chloral hydrate are viable sedation options for pediatric ABR testing.
- Propofol-ketamine offers greater efficiency but necessitates advanced monitoring and skilled personnel due to increased hypoxemia risk.
- Careful patient selection and monitoring are essential for safe and effective sedation.
Introduction:
The use of diagnostic auditory brainstem response testing under sedation is currently the "gold standard" in infants and young children who are not developmentally capable of completing the test.
Objective:
The aim of the study is to compare a propofol-ketamine regimen to an oral chloral hydrate regimen for sedating children undergoing auditory brainstem response testing.
Methods:
Patients between 4 months and 6 years who required sedation for auditory brainstem response testing were included in this retrospective study. Drugs doses, adverse effects, sedation times, and the effectiveness of the sedative regimens were reviewed.
Results:
73 patients underwent oral chloral hydrate sedation, while 117 received propofol-ketamine sedation. 12% of the patients in the chloral hydrate group failed to achieve desired sedation level. The average procedure, recovery and total nursing times were significantly lower in the propofol-ketamine group. Propofol-ketamine group experienced higher incidence of transient hypoxemia.
Conclusion:
Both sedation regimens can be successfully used for sedating children undergoing auditory brainstem response testing. While deep sedation using propofol-ketamine regimen offers more efficiency than moderate sedation using chloral hydrate, it does carry a higher incidence of transient hypoxemia, which warrants the use of a highly skilled team trained in pediatric cardio-respiratory monitoring and airway management.
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