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Active Transcutaneous Bone Conduction Implant: Audiometric Outcomes Following a Novel Middle Fossa Approach With Self-Drilling Screws
- Source :
- Otology & Neurotology. 41:605-613
- Publication Year :
- 2020
- Publisher :
- Ovid Technologies (Wolters Kluwer Health), 2020.
-
Abstract
- Objective To present surgical and audiometric outcomes of patients implanted with an active transcutaneous bone conduction implant following the novel middle fossa surgical approach with self-drilling screws. Study design Retrospective review. Setting Tertiary care center. Patients Thirty-seven adults with either conductive or mixed hearing loss that met indications for an active transcutaneous bone conduction implant were consecutively implanted from April, 2013 to May, 2018. Intervention Unilateral middle fossa implantation of an active transcutaneous bone conduction implant. Main outcome measures Patient charts were reviewed for surgical outcomes and complications over the 6-year period. Preoperative air conduction, preoperative bone conduction, and 3-month postoperative aided thresholds were recorded. Speech perception was assessed using CNC words and AzBio sentences. Pure-tone averages (PTAs; measured at 0.5, 1.0, 2.0 and 3.0 kHz), air-bone gap, and functional gain were calculated. Results Mean air conduction and bone conduction PTAs (±standard deviation) of the implanted ear were 66.8 dB (±14.9 dB) and 21.9 dB (±14.0 dB), respectively. Mean aided PTA was 26.5 dB (± 8.5 dB). The average functional gain was 40.3 dB (±19.0 dB). Favorable speech perception outcomes were observed. No complications or instances of revision surgery were reported, with a mean follow-up time of 32 months (range, 9-71 mo). Conclusions This is the first paper to describe outcomes of patients implanted with an active transcutaneous bone conduction implant via the middle fossa with self-drilling screws. Favorable surgical outcomes were observed with a follow-up of up to 6 years.
- Subjects :
- Adult
medicine.medical_specialty
Hearing loss
Bone Screws
Hearing Loss, Conductive
Tertiary care
Hearing Aids
Bone conduction
Audiometry
Humans
Medicine
Retrospective Studies
Air conduction
medicine.diagnostic_test
business.industry
Auditory Threshold
Retrospective cohort study
Sensory Systems
Middle fossa
Surgery
Treatment Outcome
Otorhinolaryngology
Speech Perception
Neurology (clinical)
Implant
medicine.symptom
business
Bone Conduction
Subjects
Details
- ISSN :
- 15374505 and 15317129
- Volume :
- 41
- Database :
- OpenAIRE
- Journal :
- Otology & Neurotology
- Accession number :
- edsair.doi.dedup.....aea33c7732f444cb8e6f9b40ea132666