This is a retrospective case review of all 163 adults to have received multichannel cochlear implants on the Manchester University/Manchester Royal Infirmary programme between 1988 and 1998. The aims were to investigate the incidence of unwanted non-auditory effects of electrical stimulation (NAS) of the cochlea, and to try to identify any factors that seemed to be related to these effects. The effectiveness of programming strategies in eliminating unwanted effects was also studied. Most of the devices were Nucleus CI 22M or CI 24M. The remainder were Med-el Combi 40 or Combi 40+. NAS occurred in 23.9% of implantees. There were 20 cases of facial nerve stimulation (12.3%), 18 cases of pain in the ear or throat (11.0%) and one case of vestibulospinal spinal stimulation (0.6%). Two aetiologies were significantly associated with NAS. Otosclerosis tended to be associated with facial nerve stimulation and skull base fracture was associated with pain. Pain was associated with electrodes stimulated in the base turn of the cochlea and facial nerve stimulation tended to occur with more distally situated electrodes, close to labyrinthine segment of the nerve. There was no association with one particular make of device. The T and C levels for the rogue electrodes were in the normal range. It is concluded that the unwanted effects result from shorting of current through areas of low electrical resistance in the temporal bone. A number of different strategies were employed to prevent the effect, including alteration of current levels, removal of electrodes from the map and changing the stimulation mode, and this was successfully achieved in all cases. There was no difference between the performance of patients who had had NAS and those who had not, as assessed on open-set BKB sentence scores.
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http://dx.doi.org/10.1179/cim.2000.1.1.55 | DOI Listing |
Laeknabladid
February 2025
Department of Neurology, University Hospital of Iceland, Reykjavik, Iceland.
Trigeminal neuralgia is the most common cause of facial pain in individuals over 50 years old and can have a profoundly negative impact on quality of life. Epidemiological studies have measured the annual incidence of trigeminal neuralgia at around 4-5 cases per 100,000 inhabitants per year. In Iceland, this would amount to about 16-20 new cases annually.
View Article and Find Full Text PDFNeurosurgery
January 2025
Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA.
Background And Objectives: Jugular paragangliomas (JPG) pose a surgical challenge because of their vascularity and complex location. Stereotactic radiosurgery (SRS) offers a minimally invasive management for patients with JPG. Our aim was to evaluate outcomes of Gamma Knife radiosurgery (GKRS) for the treatment of JPG over the long term.
View Article and Find Full Text PDFLaryngoscope
January 2025
Texas Center for Facial Plastic and Laser Surgery, San Antonio, Texas, U.S.A.
A 63 year old female patient presented to our office with two chief complaints, (1) severe OSA with CPAP intolerance and (2) cosmetic face and neck concerns regarding facial rhytids, jowls, and neck laxity. She was evaluated for Inspire candidacy and found to be an appropriate candidate. She underwent a combined Inspire hypoglossal nerve stimulator implant and deep plane facelift and necklift surgery to address her sleep apnea and her cosmetic concerns.
View Article and Find Full Text PDFJ Comput Assist Tomogr
January 2025
Department of Diagnostic Radiology and Nuclear Medicine, Rush University Medical Center, Chicago, IL.
Treacher Collins syndrome (TCS) is an uncommon congenital disorder predominantly involving craniofacial, orbital, and otological structures. The various ear malformations seen in 9 patients with TCS are described. TCS predominantly affects the external and middle ear structures, with inner ear structures being relatively spared, not unexpected given the dual embryological origin of the human ear.
View Article and Find Full Text PDFChirurgie (Heidelb)
January 2025
Universitätsklinik für Plastische, Rekonstruktive und Ästhetische Chirurgie, Medizinische Universität Wien, Wien, Österreich.
Neurofibromatosis type 1 (NF1, formerly Recklinghausen's disease) is a genetic tumor predisposition syndrome in which the mutation of a tumor suppressor gene (neurofibromin) leads to the development of mostly benign neurofibromas of the skin and the central and peripheral nervous systems and malformations or tumors of other organ systems. Patients with NF1 should receive lifelong interdisciplinary care in specialized centers and important treatment decisions should be made by a regularly meeting interdisciplinary panel of experts. Plastic surgery plays an important role in the multidisciplinary management of all clinical forms of NF1-associated peripheral nerve sheath tumors, from cutaneous and subcutaneous to deep nodular and diffuse plexiform neurofibromas.
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