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. 2022 Nov 13;8(11):e11504.
doi: 10.1016/j.heliyon.2022.e11504. eCollection 2022 Nov.

Comparison of laryngeal mask airway (LMA) insertion with and without muscle relaxant in pediatric anesthesia; a randomized clinical trial

Ziae Totonchi  1 , Seyed Alireza Seyed Siamdoust  2 , Behrooz Zaman  2 , Faranak Rokhtabnak  3 , Seyyed Amin Alavi  4
Affiliations

Comparison of laryngeal mask airway (LMA) insertion with and without muscle relaxant in pediatric anesthesia; a randomized clinical trial

Ziae Totonchi et al. Heliyon. .

Abstract

Introduction: This study aimed to evaluate the effectiveness of using muscle relaxant on the ease of laryngeal mask airway (LMA) insertion and possibility of its related complications.

Methods: This double-blind, randomized clinical trial was performed on 60 children aged 1-4 years with ASA (American Society of Anesthesiology) I or II with upper limb injuries who were candidates for surgery. The patients were randomly allocated to the two groups receiving atracurium group as muscle relaxant (MR) or saline group (S).

Results: Regarding ease of placement, the LMA was inserted in 66.7% and 63.3% of patients straightforwardly in the MR and S groups, respectively. While it was performed with one maneuver in 23.3% and 26.7% of cases in the MR and S groups, respectively (p = 0.955). Moreover, LMA dislodgment in the two groups was 36.7% in the MR group and 20.0% in the S group without a meaningful difference (P = 0.152). The only complication observed in the two groups was laryngospasm, which occurred in 0.10% and 13.3% in the MR and S groups, respectively (p = 0.688).

Conclusion: In some pediatric anesthesia, the use of atracurium, as a muscle relaxant had no significant effect on capability of LMA insertion, maintaining airway patency, LMA seal pressure and oxygenation variations. Moreover, it did not have a preventive effect on the occurrence of complications such as laryngospasm.

Keywords: Laryngeal mask airway (LMA); Muscle relaxant; Pediatrics anesthesia.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
The study consort flowchart.
See this image and copyright information in PMC

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