IRCT20170516033992N3 IRCT 2020-10-28 Oroumia University of Medical Sciences Comparison of laryngeal mask insertion in pediatric airway management Comparison of standard and reverse methods of laryngeal mask airway insertion in pediatric airway managment 2019-07-23 anticipated 68 Complete https://irct.ir/trial/50730 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: In this study, simple randomization took place in a way that numbers from 1 to 68 were written separately and put inside a blinded box. For each patient a piece of paper was drawn out. If the number drawn for the patient was even it went to group A and if it was an odd number, patients were attributed to group B, Blinding description: The condition of the study was explained to patients but they weren't told which group they were categorized into. Other than our patients everyone in the patient care team including the doctor, research team, and analyzing and supervising team were informed about the intervention of each patient. N/A Inguinal hernia. Intervention 1: Intervention group: Putting the mask upside down (Holding LMA from the proximal part, the mask was put inversely on the hard palate and was lead into the hypopharynx. then with a rotation of 180-degree counterclockwise, it was lead to the pharynx. Intervention 2: Control group: standard laryngeal mask insertion (LMA mask was taken out completely and like holding a pen in the hand it was put inside the mouth and with pressing the index finger, it is lead toward the hard palate, pharynx and larynx. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is there is a need for coordination with the center of dissemination