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Rectal benzodiazepines for premedication in children. Review and personal experience
1Clinique d'Anesthésie Pédiatrique, Hôpital Universitaire des Enfants Reine Fabiola, Brussels.
Insights
Pediatric premedication aims to reduce anxiety and ease induction. Rectal benzodiazepines, like diazepam or flunitrazepam, offer a less traumatic and more effective alternative to injections for anesthesia.
Area of Science:
- Anesthesiology
- Pediatric Medicine
- Pharmacology
Background:
- Modern anesthesia focuses on anxiolysis, amnesia, and smooth induction in pediatric patients.
- Premedication strategies are crucial for achieving these goals.
Purpose of the Study:
- To review current literature and author experience on pediatric premedication.
- To evaluate the efficacy and administration routes of benzodiazepines for pediatric anesthesia.
Main Methods:
- Literature review of pediatric premedication strategies.
- Analysis of personal clinical experience with benzodiazepine administration.
- Comparison of rectal versus intramuscular routes for benzodiazepine delivery.
Main Results:
- Rectal benzodiazepine solutions are preferred over suppositories for faster, more predictable effects and reduced patient trauma.
- Diazepam and flunitrazepam are commonly used, with flunitrazepam often favored due to its shorter elimination half-life.
- Midazolam offers rapid onset and short duration, ideal for timely administration before induction.
Conclusions:
- Rectal benzodiazepine administration is an effective and well-tolerated method for pediatric premedication.
- Drug selection (diazepam, flunitrazepam, midazolam) depends on desired onset, duration, and administration timing.
- Optimizing premedication enhances the pediatric anesthetic experience.
Abstract:
Modern anesthetic techniques have modified the aims of premedication in pediatric practice. Anxiolysis, amnesia and easiness of induction are now the the main targets. This paper reviews both the literature and the personal experience of the authors on the subject. Many authors now prefer a benzodiazepine. Rectal instillation of benzodiazepine in solution avoids the trauma of the intramuscular route and produces a faster and more predictable effect, than suppositories. Diazepam (.1 to .2 mg/kg) and flunitrazepam (40 to 80 micrograms/kg) have been extensively used in this indication. Diazepam's duration of elimination being much longer than that of flunitrazepam, this last drug is preferred by many pediatric anesthetists. Midazolam (.4 to .5 mg/kg) has a much faster onset and shorter duration of action. It should thus be preferred if the environment enables the administration of premedication within 10 to 15 minutes of induction.
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