title: Long-term Outcomes After Secondary Mastoid Obliteration.
abstract: To assess long-term outcomes after secondary mastoid obliteration.
  
  
  
  Case series with chart review.
  
  
  
  Tertiary care center.
  
  
  
  Adult patients (20-80 yr of age) undergoing secondary mastoid obliteration.
  
  
  
  Hearing results (improvement in pure-tone average air-bone gap [PTA-ABG] from baseline) at the time of postoperative audiometry and at least 5 years after surgery, anatomic outcomes (rate of successful tympanic membrane graft healing), and the incidences of observed complications.
  
  
  
  An average improvement in PTA-ABG by 16.9 dB (p = 1.8 × 10) was noted. Postoperatively, the PTA-ABG was successfully closed to ≤20 dB in 39.5% (17/43) of patients. The average final PTA-ABG (obtained at least 5 years after surgery) was 25.3 dB, which was also a significant improvement over the preoperative baseline PTA-ABG (p <<< 0.01). Significant complications were observed in 14.0% (6/43) of patients, with 9.3% (4/43) requiring a subsequent surgery. Although 69.8% (30/43) of patients experienced otorrhea preoperatively, otorrhea was only observed in 4.7% (2/43) at any point in time postoperatively.
  
  
  
  Secondary mastoid obliteration with reconstruction of a more natural posterior canal wall, cartilage tympanoplasty, and ossicular chain reconstruction is a hybrid technique that allows for creation of a safe, dry ear with significant, long-term improvement in hearing and functional outcomes in patients with unstable mastoid cavities.
authors: Department of Otolaryngology-Head and Neck Surgery, Division of Otology and Neurotology, University of Arkansas for Medical Sciences, Little Rock, Arkansas.
authors: Matthew D
authors: MD
authors: Cox
authors: Quinn A
authors: QA
authors: Dunlap
authors: Aaron
authors: A
authors: Trinidade
authors: John L
authors: JL
authors: Dornhoffer
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008416:Mastoid / Q000601:surgery*; D008875:Middle Aged; D013506:Otologic Surgical Procedures / Q000379:methods*; D012189:Retrospective Studies; D016896:Treatment Outcome; D014432:Tympanic Membrane / Q000601:surgery; D014433:Tympanoplasty / Q000379:methods; D055815:Young Adult