title: [Short and long term results of endolymphatic sac surgery: a patient-questionnaire based study].
abstract: BACKGROUND
  The endolymphatic sac surgery for the treatment of Meniere's disease has been described since the 1920s. The success rate of this technique in terms of vertigo control has been reported to be 50-80%. However, the value of this treatment method remained controversial. Furthermore, the reliable identification of the endolymphatic sac intraoperatively can be challenging in some cases. This study examines the short-, middle- and long-term results in a larger cohort of patients.
  
  
  METHODS
  In 74 patients, vertigo control, tinnitus and degree of satisfaction was evaluated by means of a questionnaire retrospectively. Additionally, the diagnostic value of the electrocochleography (EcochG) was determined.
  
  
  RESULTS
  The overall vertigo control rate was more than 70% in patients followed up for two years and has reached 81% in patients followed up for more than two years. Hearing preservation rate was 61%. Tinnitus has disappeared in 11% and improved in 23% of the patients. In 47% of the patients it was unchanged and in 19% worsened. The difference in EcochG results pre- versus postoperative was highly significant.
  
  
  CONCLUSIONS
  ELSS is a useful tool in the management of Ménière's disease, in particular in patients that do not benefit sufficiently from conservative therapy.
authors: Klinik für Hals-Nasen-Ohrenheilkunde, plastische und ästhetische Operationen der Julius-Maximilians-Universität Würzburg.
authors: A
authors: A
authors: Radeloff
authors: M
authors: M
authors: Hamad
authors: G
authors: G
authors: Baier
authors: J
authors: J
authors: Helms
authors: R
authors: R
authors: Hagen
authors: W
authors: W
authors: Shehata-Dieler
mesh_terms: D000328:Adult; D000368:Aged; D000772:Anesthesia, Local; D001672:Biocompatible Materials; D004712:Endolymphatic Sac / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008416:Mastoid / Q000601:surgery; D008575:Meniere Disease / Q000175:diagnosis / Q000601:surgery*; D008875:Middle Aged; D017060:Patient Satisfaction; D011183:Postoperative Complications / Q000175:diagnosis; D019736:Prostheses and Implants; D012189:Retrospective Studies; D012828:Silicones; D011795:Surveys and Questionnaires; D014012:Tinnitus / Q000175:diagnosis / Q000601:surgery; D055815:Young Adult
chemical_list: D001672:Biocompatible Materials; D012828:Silicones