The use of laryngeal mask airway (LMA) is increasing in pediatric anesthesia because it
provides lesser direct mechanical stimulation of the airway due to being placed above the
larynx. However, LMA insertion can be more difficult in children than in adults due to their
unique characteristics of pediatric airway. Neuromuscular blocking agents, so-called, muscle
relaxants have long been used to facilitate insertion of airway devices. But there are pros
and cons for the efficacy of muscle relaxants in LMA insertion, and most studies were
investigated in adults.