Comparison of Laryngeal Mask Airway and Endotracheal Tube in the Early Incidence of Laryngospasm in Pediatric Patients: A Prospective Double-Blinded Block-Randomized Controlled Parallel Clinical Trial

摘要

The study was conducted to compare laryngeal mask airway(LMA) and endotracheal tube (ETT) in the early incidenceof laryngospasm after surgery in pediatric patients. Theprospective double-blind block-randomized controlledparallel clinical trial was carried out on 90 pediatric patientsundergoing elective surgery. The patients selected throughconvenience sampling and then divided into two groups of45 by blocked random allocation. One group received ETTand the other group received LMA. The method ofanesthesia was the same for both the groups. Finally, afterremoving the tubes, the incidence of laryngospasm wasevaluated and compared between the two groups. A total of90 patients participated in this study, including 21 boys and24 girls in the ETTgroup, and 23 boysand 22 girls in the LMAgroup; statistically there were no signif icant differencesbetween the two groups in terms of gender and mean wereevidenced. But, the mean insertion speed was 22.15 sec. inthe ETT group and 13.99 sec in the LMA group which highlydiffered statistically. Therewere threecasesof laryngospasmin the ETT group and only one case in the LMA; thedifference between the two groups in terms of this value wasstatistically signif icant, then, the f indings can begeneralized in the same population. Results suggest, the useof LMA is more convenient and practical than ETT forelective outpatient surgeries in pediatric patients; then it isrecommended that in the same population, theanesthesiologistuse from the LMA than ETT.