Objective: Although successful cochlear implantation of patients with deafness following meningitis is expected, long-term stability of electrical current requirements has not been systematically evaluated. This study evaluated changes in programming for patients deafened by bacterial meningitis and stability of auditory performance over time.
Study Design And Setting: In this retrospective descriptive study, cochlear implant (CI) stimulation mode and performance of 14 patients deafened by meningitis were compared with those of an age-matched control group of patients deafened by other causes.
Results: There were no significant differences in mean performance between the meningitis group and control group (P > 0.05). However, the postmeningitis group required progressively higher stimulation levels and higher programming modes over time as compared to the control group.
Conclusions: Even with deafness accompanied by labyrinthine ossification attributed to meningitis, neural elements were present and could be stimulated. Because increasing levels of stimulation were required over time, postmeningitic children with CIs, and those with cochlear ossification in particular, may need frequent programming adjustments to maintain performance.
Significance: These patients need close follow-up of stimulation levels and programming modes postoperatively in order to perform optimally with CIs.
Ebm Rating: B-3.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.otohns.2004.05.019 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A prospective cohort study of cochlear implantation as a treatment for tinnitus in post-lingually deafened individuals.
Commun Med (Lond)
December 2024
Senior Department of Otolaryngology-Head and Neck Surgery, the Sixth Medical Center of PLA General Hospital, Beijing, 100048, China.
Background: Cochlear implants have helped over one million individuals restore functional hearing globally, but their clinical utility in suppressing tinnitus has not been firmly established.
Methods: In a decade-long study, we examined longitudinal effects of cochlear implants on tinnitus in 323 post-lingually deafened individuals including 211 with pre-existing tinnitus and 112 without tinnitus. The primary endpoints were tinnitus loudness and tinnitus handicap inventory.
Interaural level difference sensitivity in neonatally deafened rats fitted with bilateral cochlear implants.
Sci Rep
December 2024
Neurobiological Research Laboratory, Section for Experimental and Clinical Otology, Department of Otorhinolaryngology, Head and Neck Surgery, Faculty of Medicine, Medical Center - University of Freiburg, Killianst. 5, 79106, Freiburg im Breisgau, Germany.
Bilateral cochlear implant (CI) patients exhibit significant limitations in spatial hearing. Their ability to process interaural time differences (ITDs) is often impaired, while their ability to process interaural level differences (ILDs) remains comparatively good. Clinical studies aiming to identify the causes of these limitations are often plagued by confounds and ethical limitations.
View Article and Find Full Text PDFFrequency-to-Place Mismatch and Cochlear Implant Outcomes by Electrode Type.
JAMA Otolaryngol Head Neck Surg
December 2024
Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, Nashville, Tennessee.
Importance: Speech recognition outcomes with a cochlear implant (CI) are highly variable. One factor suggested to correlate with CI-aided speech recognition is frequency-to-place mismatch, or the discrepancy between the natural tonotopic organization of the cochlea and the electric frequency allocation of the CI electrodes within the patient's cochlea.
Objective: To evaluate the association between frequency-to-place mismatch and speech recognition outcomes in a large cohort of postlingually deafened adult CI users, while controlling for various clinical factors known to be associated with those outcomes.
Does age protect against loss of tonotopy after acute deafness in adulthood?
Front Cell Neurosci
November 2024
Neurobiological Research Laboratory, Section for Experimental and Clinical Otology, Department of Oto-Rhino-Laryngology, Faculty of Medicine, Medical Center - University of Freiburg, Freiburg, Germany.
The mammalian auditory system develops a topographical representation of sound frequencies along its pathways, also called tonotopy. In contrast, sensory deprivation during early development results in no or only rudimentary tonotopic organization. This study addresses two questions: (1) How robust is the central tonotopy when hearing fails in adulthood? (2) What role does age play at time of deafness? To address these questions, we deafened young and old adult rats with previously normal hearing.
View Article and Find Full Text PDFExploring the cognitive effects of hearing loss in adult rats: Implications for visuospatial attention, social behavior, and prefrontal neural activity.
Neuroscience
January 2025
Department of Neurosurgery, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hanover, Germany; Cluster of Excellence Hearing4all, German Research Foundation, Hanover, Germany. Electronic address:
Age-related hearing loss in humans has been associated with cognitive decline, though the underlying mechanisms remain unknown. We investigated the long-term effects of hearing loss on attention, impulse control, social interaction, and neural activity within medial prefrontal cortex (mPFC) subregions. Hearing loss was induced in adult rats via intracochlear neomycin injection (n = 13), with non-operated rats as controls (n = 10).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!