title: Trans-tympanic silicone plug insertion for chronic patulous Eustachian tube.
abstract: CONCLUSIONS
  Trans-tympanic insertion of a new silicone plug seems to be useful for controlling the distressing symptoms of patients with a chronic patulous Eustachian tube (PET).
  
  
  OBJECTIVE
  To evaluate the effectiveness of a new silicone plug for blocking the isthmus of a PET in patients whose symptoms were resistant to other therapies for > 6 months.
  
  
  METHODS
  The silicone plug (total length 23-25 mm; tip diameter 1.0-2.0 mm) was inserted in 44 ears of 37 patients with chronic PET. It was inserted through the tympanic orifice of the ET to obstruct the isthmus of the tube via an incision in the anterosuperior portion of the tympanic membrane.
  
  
  RESULTS
  Insertion of the plug was possible in all except two ears, in which it failed because of a narrow tympanic orifice of the ET. In 11 ears of 10 patients, the plug was replaced by a larger one using the same approach to improve efficacy. Of the 42 ears in which the silicone plug was successfully inserted, 30 (71.4%) achieved relief from symptoms of PET without additional treatment. In > 60% of these cases, the symptoms of PET were well controlled with an aerated middle ear. The follow-up period ranged from 6 to 68 months (mean 38.9 months).
authors.affiliation: Department of Otolaryngology--Head and Neck Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-ku, Sendai 980-8574, Japan. satou@orl.med.tohoku.ac.jp
authors.forename: Toshinori
authors.initials: T
authors.lastname: Sato
authors.forename: Tetsuaki
authors.initials: T
authors.lastname: Kawase
authors.forename: Hisakazu
authors.initials: H
authors.lastname: Yano
authors.forename: Mitsuko
authors.initials: M
authors.lastname: Suetake
authors.forename: Toshimitsu
authors.initials: T
authors.lastname: Kobayashi
mesh_terms: D000328:Adult; D002648:Child; D002908:Chronic Disease; D003679:Deglutition / Q000502:physiology; D005064:Eustachian Tube / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006311:Hearing Disorders / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008876:Middle Ear Ventilation / Q000379:methods*; D038781:Otoscopy; D011474:Prosthesis Design; D017755:Prosthesis Fitting; D019919:Prosthesis Implantation; D012828:Silicones
chemical_list: D012828:Silicones