Cranial nerves VII and XII palsy after shoulder surgery.

A 46-year-old man underwent a left shoulder surgery in the beach chair position with general anaesthesia and oro-tracheal intubation preceded by a left interscalenic block. Patient's head was attached to the headrest in a position of soft extension and moderate right rotation with adhesive tape surrounding his forehead and mandible. Surgery was marked by repeated vertical tractions on the left arm and by blood resorption of the arthroscopy's irrigation fluid, including epinephrine, which translated in a heart rate and arterial blood pressure rise.