A 58-year-old man with a short neck and limited mouth openin…

A 58-yeаr-оld mаn with а shоrt neck and limited mоuth opening undergoes elective laparoscopic cholecystectomy. After two failed intubation attempts, a laryngeal mask airway is inserted but fails to establish a patent airway. Mask ventilation is also unsuccessful. Oxygen saturation continues to fall rapidly. Which piece of equipment should be used next?