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Outcomes following Semicircular Canal Plugging.

John C Goddard1, Eric P Wilkinson2

  • 1House Clinic, Los Angeles, California, USA jgoddard@hei.org.

Otolaryngology--Head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
|June 26, 2014
PubMed
Summary
This summary is machine-generated.

Semicircular canal plugging for superior canal dehiscence syndrome preserves hearing and improves symptoms. This procedure offers excellent audiometric outcomes and significant symptom relief with minimal complications.

Keywords:
canal pluggingmiddle fossa approachsensorineural hearing losssuperior semicircular canal dehiscence

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Area of Science:

  • Otolaryngology
  • Neurosurgery
  • Audiology

Background:

  • Superior semicircular canal dehiscence syndrome (SCD) causes auditory and vestibular symptoms.
  • Semicircular canal plugging is a surgical option for SCD.

Purpose of the Study:

  • To evaluate audiometric outcomes after semicircular canal plugging for SCD.
  • To assess symptom control and complication rates following the procedure.

Main Methods:

  • Retrospective chart review of 24 patients with SCD.
  • Analysis of pre- and postoperative audiometry and vestibular testing.
  • Review of operative findings, symptoms, and complications.

Main Results:

  • No significant change in air conduction pure-tone averages or word recognition scores.
  • Reduced vestibular evoked myogenic potential thresholds in 7 patients.
  • Over 80% of patients experienced at least partial symptom improvement; 35.7% had complete improvement.
  • One temporary facial weakness complication.

Conclusions:

  • Semicircular canal plugging is associated with excellent hearing preservation.
  • The procedure effectively reduces preoperative symptoms in SCD patients.
  • Low complication rates support its use in managing SCD.