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Arterial oxygen saturation in children receiving rectal midazolam as premedication for oral surgical procedures
J A Roelofse1, J J de V Joubert
1Faculty of Dentistry, University of Stellenbosch, Cape Town, Republic of South Africa.
Insights
Rectal midazolam premedication in children undergoing dental procedures did not affect vital signs. However, higher doses (0.35 and 0.45 mg/kg) significantly improved oxygen saturation levels compared to placebo.
Area of Science:
- Pediatric Anesthesiology
- Pharmacology
- Dental Sedation
Background:
- Midazolam is commonly used for procedural sedation in pediatric dentistry.
- Understanding its impact on cardiorespiratory parameters is crucial for patient safety.
- Optimal dosing for maintaining adequate oxygenation requires further investigation.
Purpose of the Study:
- To evaluate the effect of different doses of rectal midazolam on arterial oxygen saturation in children.
- To assess the impact of midazolam premedication on vital signs including blood pressure, respiration, and pulse rate.
- To compare the efficacy of varying midazolam dosages against a placebo.
Main Methods:
- Eighty healthy children (2-7 years) undergoing dental procedures were enrolled.
- A double-blind, randomized controlled trial design was employed.
- Participants received rectal midazolam (0.25, 0.35, or 0.45 mg/kg) or placebo 30 minutes prior to anesthesia induction.
Main Results:
- No statistically significant differences were observed in systolic/diastolic blood pressure, respiration, or pulse rates across groups.
- Oxygen saturation levels in children receiving 0.35 mg/kg (Group B) and 0.45 mg/kg (Group C) midazolam showed significant improvement.
- These improvements in oxygen saturation were significantly different compared to the placebo group (P = 0.0259).
Conclusions:
- Rectal midazolam at 0.35 and 0.45 mg/kg effectively maintains or improves arterial oxygen saturation in pediatric dental patients.
- Midazolam premedication did not adversely affect other vital signs such as blood pressure or respiratory rate.
- These findings support the use of specific midazolam dosages for optimizing respiratory support during dental procedures.
Abstract:
Eighty healthy children, between the ages of 2 and 7 years, undergoing dental procedures were monitored with a pulse oximeter for changes in arterial oxygen saturation. The children were randomly allocated into 4 groups in this double-blind study. Three groups received rectal midazolam, and the other group a placebo (saline) as premedication 30 min prior to induction of anesthesia. Group A children received midazolam 0.25 mg/kg, Group B 0.35 mg/kg and Group C 0.45 mg/kg. The results from this trial show no statistical significant difference between the treatment groups as to the effect on either systolic or diastolic blood pressure, respiration, or pulse rates at either pre- or post-sedation levels. However, the oxygen saturation levels for groups B and C differed significantly from those of the placebo groups 30 minutes after premedication (P = 0.0259).