Short and long term preservation of hearing thresholds corrected for natural hearing loss in cochlear implant recipients using a straight electrode

Autor: Emmanuel A. M. Mylanus, Ingeborg Dhooge, Chantal Snels, Wendy J. Huinck, Freya Swinnen
Rok vydání: 2020
Předmět:
Male
medicine.medical_specialty
Time Factors
Hearing loss
medicine.medical_treatment
Straight electrode
Audiology
Sensory disorders Donders Center for Medical Neuroscience [Radboudumc 12]
03 medical and health sciences
Speech and Hearing
0302 clinical medicine
Cochlear implant
medicine
otorhinolaryngologic diseases
Humans
Correction of Hearing Impairment
Postoperative Period
Hearing Loss
030223 otorhinolaryngology
Aged
Retrospective Studies
Natural course
Hearing preservation
Round window
business.industry
Auditory Threshold
Middle Aged
medicine.disease
Cochlear Implantation
Term (time)
Cochlear Implants
Cross-Sectional Studies
Treatment Outcome
medicine.anatomical_structure
Round Window
Ear
Otorhinolaryngology
Preoperative Period
Audiometry
Pure-Tone
Female
Sensorineural hearing loss
medicine.symptom
business
030217 neurology & neurosurgery
Zdroj: Cochlear Implants International, 21, 110-116
Cochlear Implants International, 21, 2, pp. 110-116
ISSN: 1467-0100
Popis: Item does not contain fulltext Objectives: The aim of this study is to investigate short and long term residual hearing preservation (HP), corrected for the natural progress of hearing loss, in cochlear implant (CI) patients receiving a straight electrode array using a round window (RW) approach.Methods: A retrospective and cross-sectional analysis on patients who received a CI with a straight electrode using a RW approach (n = 60) was performed. Audiometric data were obtained at three time points, preoperatively, at first fitting, and one year or more postoperatively. The HP outcome was calculated according to the HP definition as reported by Skarzynski with a PTA of 250, 500, and 1000 Hz (PTA3) and a PTA of 250, 500, 1000, and 2000 Hz (PTA4).Results: The HP outcome at first fitting and at long term follow up fell into the partial HP category, 63.5% (PTA3) and 40.5% (PTA4), respectively according to the Skarzynski definition. A decline in pure-tone average (PTA) was found in the CI ear and in the contralateral ear over time (p < 0.05). Interaural differences remained relatively stable at all frequencies on the long term, except for the frequency 250 Hz (p < 0.05).Discussion: After the initial loss of residual hearing, the hearing thresholds of the CI ear remain relatively stable at long term follow up when corrected for the natural course of hearing loss, except at 250 Hz.Conclusion: CI candidates should be counseled on the risk of long term deterioration of the residual hearing in both the CI ear and the contralateral ear.
Databáze: OpenAIRE
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje