Even if the laryngeal mask (LM) is considered a very safe device with a low incidence of complications there may be situations where it is difficult to insert. Therefore it seems appropriate to carry out a prospective observational study that will identify the risk factors relating to the positioning of LM for the purpose of identification and prediction of them. From reading the literature and from the opinion of the experts with extensive practice in airway management (part of the Working Group "Management of Airway" of the Italian Society of Anaesthesia, Analgesia, Resuscitation and Intensive Care) some possible causes of difficulty in the insertion of laryngeal mask have been identified; these possible causes were listed in a report that will be distributed to the centers enrolled in the conduction of the study. 1,864 patients will be enrolled in 8 Italian research centers to calculate the relative risk of each of the factors analyzed in order to identify those that, in view of the LM positioning, must be modified to reduce the risk of failure and, secondly, to identify the risk factors whose presence may contraindicate the use of the device and indicate the use of alternative methods for airway management.
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Success in the first attempt
Timeframe: Immediately after the attempt of insertion