Document Detail

Congenital absence of the oval window: diagnosis, surgery, and audiometric outcomes.
MedLine Citation:
PMID:  18199954     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To review the surgical management and outcomes of patients with congenital absence of the oval window (CAOW) undergoing the oval window drill-out (OWD) procedure. STUDY DESIGN AND SETTING: A retrospective chart review of patients with CAOW seen in a tertiary care otologic practice between 1991 and 2006. PATIENTS/INTERVENTION: Patients with CAOW undergoing OWD procedure. MAIN OUTCOME MEASURES: Findings at surgery and preoperative and postoperative audiometric outcomes (air and bone conduction thresholds; speech reception threshold). RESULTS: Seventeen ears underwent OWD for CAOW. Four cases were aborted. For the 13 subject ears, average 1-month postoperative 4-tone air conduction and speech reception thresholds were significantly lower than preoperative thresholds. Long-term follow-up (average, 20 months) air conduction and speech reception thresholds were also significantly lower but showed a slight worsening of thresholds compared with the 1-month postoperative results. Speech discrimination scores and bone conduction thresholds remained stable. CONCLUSION: OWD may be a viable operation for patients with CAOW, although longer follow-up is needed. Given the mixed hearing results in the current patient series, we have tempered our enthusiasm for this operation. Technically challenging, this procedure nevertheless can improve patients' hearing with minimal morbidity. Revision surgery did not result in improved outcome.
Alessandro de Alarcon; Robert A Jahrsdoerfer; Bradley W Kesser
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology     Volume:  29     ISSN:  1531-7129     ISO Abbreviation:  Otol. Neurotol.     Publication Date:  2008 Jan 
Date Detail:
Created Date:  2008-01-17     Completed Date:  2008-02-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100961504     Medline TA:  Otol Neurotol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  23-8     Citation Subset:  IM    
University of Virginia, Department of Otolaryngology-Head and Neck Surgery, Charlottesville, Virginia 22908-0713, USA.
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MeSH Terms
Audiometry, Pure-Tone
Bone Conduction
Child, Preschool
Ear Canal / surgery
Incus / radiography,  surgery
Malleus / radiography,  surgery
Otologic Surgical Procedures*
Oval Window, Ear / abnormalities*,  surgery*
Retrospective Studies
Stapes / radiography
Tomography, X-Ray Computed
Treatment Outcome

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