title: Outcomes following Semicircular Canal Plugging.
abstract: OBJECTIVE
  To examine audiometric outcomes, symptom control rates, and complication rates following semicircular canal plugging for superior semicircular canal dehiscence syndrome.
  
  
  METHODS
  Retrospective chart review.
  
  
  METHODS
  Private, neurotologic tertiary referral center.
  
  
  METHODS
  Patients undergoing semicircular canal plugging for superior semicircular canal dehiscence syndrome from January 1, 2007, to December 31, 2012. Pre- and postoperative audiometry, vestibular testing, operative findings, and clinical symptoms were assessed through chart review.
  
  
  RESULTS
  A total of 24 ears underwent a canal plugging procedure during the study period for superior canal dehiscence syndrome. Pre- and postoperative air conduction pure-tone averages were 21.1 and 22.5 dB (P = .42, not significant [NS]). The average pre- and postoperative word recognition scores were 95.8% and 95.1% (P = .48, NS). Vestibular evoked myogenic potential data showed reduced thresholds in 7 patients with canal dehiscence. Complications were limited to a single, temporary facial weakness. Complete symptom improvement was noted in 35.7% of all patients, while at least partial symptom improvement was found in over 80% of patients.
  
  
  CONCLUSIONS
  Semicircular canal plugging procedures are associated with excellent hearing outcomes and may reduce preoperative symptoms in patients with superior semicircular canal dehiscence.
authors: House Clinic, Los Angeles, California, USA jgoddard@hei.org.
authors: John C
authors: JC
authors: Goddard
authors: House Clinic, Los Angeles, California, USA.
authors: Eric P
authors: EP
authors: Wilkinson
mesh_terms: D000328:Adult; D000368:Aged; D001301:Audiometry, Pure-Tone / Q000379:methods; D001309:Auditory Threshold / Q000502:physiology; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008876:Middle Ear Ventilation / Q000009:adverse effects / Q000379:methods; D013506:Otologic Surgical Procedures / Q000009:adverse effects* / Q000379:methods; D011182:Postoperative Care; D012086:Reoperation / Q000379:methods; D012189:Retrospective Studies; D012665:Semicircular Canals / Q000503:physiopathology / Q000601:surgery*; D012720:Severity of Illness Index; D013529:Surgical Wound Dehiscence / Q000209:etiology / Q000601:surgery*; D013577:Syndrome; D016896:Treatment Outcome; D014724:Vestibular Function Tests; D055815:Young Adult
keywords: canal plugging; middle fossa approach; sensorineural hearing loss; superior semicircular canal dehiscence