<prompt> End tracheostomy is done in patients undergoing surgery for:LaryngectomyLaryngofissure surgeryOropharyngeal tumorObstructive sleep apnea with stridor  <response>: Refer: PL Dhingra, Textbook of Ear, Nose, Throat, 6th edition, pg no: 316Types of tracheostomyEmergency tracheostomyElective tracheostomyPermanent tracheostomyPercutaneous dilatational tracheostomyMini tracheostomyIndications of tracheostomy 