Effectiveness of 50% nitrous oxide/50% oxygen during laceration repair in children

Area of Science:

• Pediatric Emergency Medicine
• Pain Management
• Anesthesia

Background:

• Laceration repair in children often causes significant anxiety.
• Effective anxiety management is crucial in pediatric emergency settings.
• Nitrous oxide is a commonly used inhaled anesthetic for procedural sedation.

Purpose of the Study:

• To evaluate the efficacy of inhaled 50% nitrous oxide/50% oxygen mixture in reducing observed anxiety in children during laceration repair.
• To compare the effects of nitrous oxide/oxygen with 100% oxygen on anxiety and pain scores.

Main Methods:

• Prospective, randomized, placebo-controlled, double-blind study.
• Involved children aged 2-7 years undergoing laceration repair in a pediatric ED.
• Assessed anxiety using a 4-point scale and pain using the modified Children's Hospital of Eastern Ontario Pain Scale (CHEOPS).

Main Results:

• The nitrous oxide/oxygen group showed a significant decrease in median CHEOPS scores (-5 points) and anxiety scores (-1 point).
• The control group (100% oxygen) experienced an increase in median CHEOPS scores (+3 points) and anxiety scores (+1 point).
• Initial scores and demographic data were comparable between groups, indicating no significant baseline differences.

Conclusions:

• Inhaled 50% nitrous oxide/50% oxygen mixture significantly reduced anxiety and pain measures in children during laceration repair.
• This mixture offers a safe and effective option for managing procedural anxiety in pediatric patients.
• The findings support the use of nitrous oxide/oxygen for conscious sedation in pediatric emergency procedures.