Abstract
Objectives: Uncertainty about the effect of age on the success rate of laryngeal mask airway (LMA) insertion led us to conduct the present study to evaluate the success rate of LMA in airway management in different age groups. Materials and Methods: A total of 183 patients, who were admitted to Shohada hospital (Tabriz, Iran) during 2018-2019, were enrolled in this descriptive, cross-sectional, prospective study. The patients were selected through the convenience sampling method and divided into 4 age groups. After anesthesia, patients were compared in terms of duration and number of LMA insertion attempts and LMA insertion complications. The data were analyzed using SPSS20 through one-way ANOVA and the Chi-square test at P<0.05). Results: There were significant statistical differences between different age groups regarding resistance against LMA insertion (P=0.008) so that insertion was most comfortable and easy in the first attempt in the adult group compared to other groups. However, no significant statistical difference was observed between different groups in terms of the rate of air leakage (P=0.129), the duration of successful LMA insertion (P=0.119), and the number of LMA insertion attempts (P=0.091). Regarding LMA insertion complications, laryngospasm was significantly higher in the middle-age and aged group (P=0.009), and blood observation on LMA was significantly higher in the pre-school and child group (P=0.005). Conclusions: According to the results of this study, no difference was found between different groups in terms of successful LMA insertion and post LMA insertion complications.
Highlights
Laryngeal mask airway (LMA) is a useful device that is designed for managing airways during general anesthesia and has become a common alternative to airway management
LMA can be highly helpful for the users due to the problems encountered in successful airway management, especially when it is performed by the novice users such as assistants and health care providers working in the trauma and emergency units [1,2,3]
What Is the Current Knowledge? ►► LMA has the least complications for ventilation and oxygenation. ►► LMA can be inserted in a short time and help with timely oxygenation
Summary
Laryngeal mask airway (LMA) is a useful device that is designed for managing airways during general anesthesia and has become a common alternative to airway management. The device is used by inexperienced people and provides proper management of airways in patients with mechanical ventilation and those with spontaneous breathing. LMA can be highly helpful for the users due to the problems encountered in successful airway management, especially when it is performed by the novice users such as assistants and health care providers working in the trauma and emergency units [1,2,3]. Difficult insertion of LMA in some people is another limitation of this device. Its proper insertion can ensure the maximum efficiency of using LMA in auxiliary ventilation. It is necessary to identify the factors affecting the incorrect insertion of this valuable device. Obesity, head anatomy, neck problems, and airway trauma are among the factors influencing the improper insertion of LMA. The effects of other factors have not been precisely determined yet [8,9]
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