CURRENT STATUS OF NAVIGATION SURGERY IN OTORHINOLARYNGOLOGY

―A QUESTIONAIRE SURVEY IN 2015^TH YEAR―

Abstract

　Since the navigation surgery started in otolaryngology and head and neck surgery, about 20 years has passed. The total number of institutions taken the navigation surgery was 136/163 (83%), in which the university hospital was 68 (42%), municipal hospital/medical center was 68 (42%), particularly diffusion rate rose by the university hospital. Regarding the registration, the surface method was the mainstream, and its time was shortened around 15 minutes as well as convenience. About precision and error, the intraoperative average error was one or two mm. The number of navigation surgery cases considerably increased in the nasal surgery with 11,473 cases (91%). On the other hand, the number of otology and head and neck surgery were 9%. The ratio of “the absolute need” was 36% in ear cases, 26% in nasal cases and drastically increased 71% in head and neck cases. The answer to the question “which part you were necessary to be concrete” was the confirmation of the petrous part lesion, the meatal atresia, the orientation of the subtotal excision of temporal bone, unusual cochlear implant in the otology, a paranasal cyst, a chronic sinusitis recurrence (a frontal sinus), a nasal cavity tumor (papilloma etc.), choanal atresia, a recurrence of the nasolacrimal duct in rhinology, and skull base surgery, maxillary cancer, pituitary gland surgery, clivus surgery, epipharynx angiofibroma and endoscopic endonasal skull base surgery in head and neck field. The necessity of the navigation surgery was “need” in 153/163 institutions (83%), “not need” in 0 (0%), “unclear” in 8 (5%). About the complication, three liquorrhea was reported. The development as a new technology is expected in future.