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Propofol for laryngeal mask airway insertion in children: Effect of two different doses
Mahin Seyedhejazi1, Mahmoud Eydi, Morteza Ghojazadeh
1Tabriz University of Medical Sciences, Tabriz, Iran.
Insights
Two propofol doses (2.5 and 3.5 mg/kg) showed similar effectiveness for laryngeal mask airway (LMA) insertion in children. This study found no significant differences in complications or airway quality between the two propofol regimens.
Area of Science:
- Anesthesiology
- Pediatric Surgery
Background:
- Propofol facilitates laryngeal mask airway (LMA) insertion during anesthesia induction.
- Optimal propofol dosage for LMA insertion in pediatric patients remains undetermined, balancing efficacy against potential complications.
Purpose of the Study:
- To compare the efficacy and safety of two intravenous propofol doses (2.5 mg/kg vs. 3.5 mg/kg) for laryngeal mask airway (LMA) insertion in pediatric out-patients.
Main Methods:
- A double-blind randomized clinical trial involving 120 children undergoing out-patient surgery.
- Patients received pre-medication with midazolam, fentanyl, and lidocaine before induction with either 2.5 mg/kg or 3.5 mg/kg of propofol.
- Comparison of hemodynamic changes, complications, airway quality, and LMA insertion success rate between the two propofol dose groups.
Main Results:
- No significant differences were observed in hemodynamic parameters (blood pressure, heart rate) or peripheral oxygen saturation between the groups.
- Intraoperative complications and the success rate of LMA insertion on the first attempt (93.2% vs. 91.5%) were comparable.
- Adequate airway establishment was achieved in all patients in both the 2.5 mg/kg and 3.5 mg/kg propofol groups.
Conclusions:
- Intravenous propofol doses of 2.5 mg/kg and 3.5 mg/kg are equally effective for laryngeal mask airway insertion in pediatric patients.
- The chosen pre-medication regimen (midazolam, fentanyl, lidocaine) appears to support the efficacy of both propofol doses.
- Both dosages are deemed safe and effective for this specific anesthetic procedure in children.
Purpose:
To compare two different doses of propofol for laryngeal mask airway (LMA) insertion in children undergoing out-patient surgeries.
Background:
Insertion of LMA just after anesthesia induction is facilitated using propofol. However, the optimal dose of this drug not determined yet as heavy doses may lead to severe complications, whereas lower doses may not be quite as effective.
Methods:
In a double-blind randomized clinical trial, 120 children undergoing out-patient surgeries were recruited to receive intravenous propofol at a dose of either 2.5 mg/kg (group 1) or 3.5 mg/kg (group 2) for induction. Intravenous midazolam (0.03 mg/kg) and fentanyl (1 μg/kg) were used as pre-medication in all patients and anesthesia induction was initiated using lidocaine (1 mg/kg) prior to propofol administration. Hemodynamic changes, probable complications, quality of the established airway and number of attempts for LMA insertion were compared between two groups.
Results:
There were no differences in systolic and diastolic blood pressure, heart rate, peripheral oxygen saturation and intraoperative complications between the groups (P>0.05). LMA insertion was successful at the first attempt in 55 (93.2%) and 54 (91.5%) cases in group 1 and group 2, respectively (P>0.05). The efficiency of the established airways was adequate in all the patients of both groups.
Conclusion:
It seems that propofol doses of 2.5 and 3.5 mg/kg are equally effective for LMA insertion following intravenous midazolam, fentanyl, and lidocaine.
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