Long-term Audiometric Outcomes After Atresiaplasty for Congenital Aural Atresia
| Autor: | Lincoln Gray, Bradley W. Kesser, Terence E. Imbery, Eve Privman Champaloux |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Adult
medicine.medical_specialty 03 medical and health sciences 0302 clinical medicine Bone conduction Audiometry Hearing Chart review otorhinolaryngologic diseases Humans Medicine Aural atresia Child 030223 otorhinolaryngology Retrospective Studies Air conduction business.industry Outcome measures Ear Audiogram Sensory Systems Surgery Treatment Outcome Otorhinolaryngology Hearing results Audiometry Pure-Tone Referral center Neurology (clinical) business 030217 neurology & neurosurgery |
| Zdroj: | Otology & Neurotology. 41:371-378 |
| ISSN: | 1537-4505 1531-7129 |
| Popis: | OBJECTIVE Describe long-term trends and stability of hearing outcomes for patients undergoing primary congenital aural atresia (CAA) repair. STUDY DESIGN Retrospective chart review. SETTING Single academic, tertiary referral center. PATIENTS Children and adults who underwent primary CAA repair between 1980 and 2017. INTERVENTION CAA repair. MAIN OUTCOME MEASURES Long-term (> 1 yr) postoperative three-tone (500, 1000, 2000 Hz) air conduction pure-tone average (AC PTA) compared with the immediate (within 90 d of surgery) postoperative audiogram. RESULTS The mean preoperative AC PTA was 59.6 dB HL. CAA repair improved hearing an average of 30.5 dB, but hearing declined by 8.2 dB over the long-term follow-up period (mean 4.4 yr; range 1-15.7 yr), leaving a final mean improvement of 22.2 dB (final mean AC PTA 37.3 dB HL). Two-thirds (92 of 138 ears) had an AC PTA ≤ 30 dB HL recorded in the first year after surgery. At the last follow-up test, 64% had "stable" hearing defined as no more than a 10 dB decline in AC PTA compared with the immediate postoperative audiogram; 21% had a 10 to 20 dB decline, 8% a 20 to 30 dB decline, and 7% declined > 30 dB. CONCLUSIONS All patients enjoyed improvement in AC PTA after surgery (preoperative minus the best postoperative PTA, mean = 34 dB, range = 3.3-52 dB). Hearing declined by an average 8.2 dB over the long-term leaving a final average AC PTA of 37.4 dB HL. Sixty-four percent of patients exhibited stable (< 10 dB loss) hearing over time; 36% lost 10 dB or more over the long-term follow-up period. Hearing results typically stabilize over time with most of the change occurring in the first 3 years after CAA repair. Bone conduction thresholds remained stable over the study period. |
| Databáze: | OpenAIRE |
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