Fig. 2. Fiberoptic criteria for an optimal position of the  LMA Supreme™ (The Laryngeal Mask Company Limited, St. Helier, Jersey, Channel Islands). (  A ) The tip of the  LMA Supreme™ placed behind the arytenoids at the entrance to the upper esophageal sphincter. (  B ) The epiglottis visible, not folded down and not entering the airway. (  C ) The vocal cords completely visible during inspiration or after passing the fiberscope under the epiglottis.