Spandan Ent Clinic make Surgery Endoscopic Nasal Surgery (FESS) All Routine ENT Surgeries Tonsillectomy Microscopic Ear surgery FESS: Endoscopic sinus surgery Stapedectomy Surgery for device. It is performed under general anesthetic. A variety of laryngoscopes or instruments for examining the larynx are introduced through the mouth. Often, the procedure involves the use of lasers; either carbon dioxide or Diode lasers.