The laryngeal mask is a new method in the control of the airway. In this study we assess the haemodynamic response during the insertion of the laryngeal mask, incidence of complications and recovery from anaesthesia after its use. We also check if the laryngeal mask is easy to place into the patient airway and its versatility in pediatric patients. We have obtain that the use of the laryngeal mask airway is a safe technique, with few complications, easy to learn and with a short recovery time.