PROTOCOL ENTRY CRITERIA:. --Disease Characteristics-- Confirmed diagnosis of neurofibromatosis type 2 Scheduled to undergo first side or second side tumor removal First side implantation performed only on patients with onset of symptoms prior to age 40 --Prior/Concurrent Therapy-- If a nonfunctional auditory brain stem implant (ABI) is present (implanted during the removal of a first side tumor), a multichannel ABI may be implanted during the removal of a second side tumor --Patient Characteristics-- English is the primary language ...

An auditory brainstem implant at NYU Langones Cochlear Implant Center can help people with hearing loss caused by neurofibromatosis type 2. Learn more.

Surgical removal of these tumors typically damages the auditory nerve, resulting in deafness. Unlike a cochlear implant, an ABI does not require an intact auditory nerve and can be placed after tumor removal to provide sound sensations to the deafened patient (Prog Brain Res2009;175:333-345).. Research performed over the past several decades has demonstrated that ABIs provide meaningful sound awareness and improve lip-reading scores (Laryngoscope 2005;115[11]:1974-1978 ).. For example, among 26 patients in a study by Barry Nevison, DPhil, and colleagues, all but one patient had auditory sensation at initial ABI activation, and the ABI provided most subjects with some ability to appreciate sound (Ear Hear 2002;23[3]:170-183). However, benefits for individual ABI patients have varied substantially, as noted by Marc S. Schwartz, MD, et al (Stereotact Funct Neurosurg 2003;81[1-4]:110-114).. While US otologists and neurosurgeons have predominately used auditory brainstem implants in the adult NF2 ...

Single or Multi-Channel Cochlear Implants Cochlear implants are recognized as an effective treatment of sensorineural deafness. While use of a unilateral cochlear implant in an individual with severe to profound hearing loss has become a standard clinical practice, bilateral implantation is less common. Evolution of cochlear implant devices has focused on minimizing the internally implanted electrodes, such that one device, the Nucleus® 24 (Cochlear Americas, Englewood, CO), received FDA approval (2000) for use in children 12 months of age and older. A review of the early peer-reviewed literature includes several reports on individuals with bilateral cochlear implants (Long, 2003; Muller, 2002; Schoen, 2005; Tyler, 2002; van Hoesel, 2002; van Hoesel, 2003). These early reports evaluated small numbers of individuals and provided limited outcome information. In these reports, most, but not all, individuals reported very slight to modest improvements in sound localization and speech ...

When ABIs are provided to patients who have lost their auditory nerve from causes other than NF2 (non-tumor or NT patients), the outcomes of the ABI are dramatically different. Colletti and colleagues in Verona, Italy, have demonstrated that about 50% of NT ABI patients have sentence understanding of more than 50% with only the sound from the ABI without speechreading (Colletti & Shannon, 2005). Several of these patients achieved speech understanding equivalent to the best performance of CI patients. These results demonstrate that electrical stimulation of the human brainstem (CN) can provide excellent speech understanding for some patients. It also suggests that the cause of poor speech recognition in NF2 ABI patients may be related to NF2. However, recent results in Europe have demonstrated speech recognition levels similar to those of CI patients in NF2 ABI patients-a level previously not obtained by hundreds of patients with ABIs around the world (Behr et al., 2007). Several NF2 ABI patients ...

Information, Tools, and Resources to aid Primary Care Physicians in caring for Children with Special Health Care Needs (CSHCN) and providing a Medical Home for all of their patients.

Stay connected with the UH Now app. With this mobile app, you can find a doctor and find a location. In addition, you can log into your UH Personal Health Record and schedule an appointment. UH Now also allows you to explore health topics that are important to you. Take charge of your health by downloading UH Now today, and get health information delivered right to your fingertips.. Learn More. ...

Brainstem Implants are being studied as an option for parents whose children are not able to have a cochlear implant. KTAB-TV has a video report. No captions but you can read the story here ...

The type, timing and degree of surgery (if any) should be carefully made by a multidisciplinary team with experience in managing NF2, the lifelong implications of the condition, its treatments and the complications that may result from treatment. The cornerstone of care is in minimal interference, conservation of function and maintenance of quality of life.r Factors that should be considered in surgical decision making include tumour impact on the patient (such as degree of brain stem compression), size, location, growth rate, number of lesions, patients co-morbidities (such as degree of hearing loss in each ear), suitability for auditory rehabilitation (using a cochlear implant or auditory brain stem implant) or other treatment (e.g. stereotactic radiosurgery), and the possible complications that may arise from the surgery, such as loss of cochlear, vestibular, bulbar and facial nerve function.rrr. ...

Evidence-based recommendations on auditory brain stem implants for deafness caused by damage to the vestibulocochlear nerve due to tumours or surgery ...

Evidence-based recommendations on auditory brain stem implants for deafness caused by damage to the vestibulocochlear nerve due to tumours or surgery ...

Ravi N. Samy, M.D. successfully implanted a cochlear implant (CI) in the right ear and an auditory brainstem implant (ABI) in the left ear of a patient named Jessica, making her one of the few patients in the country to have both. The ABI was implanted with the CochlearTM Nucleus® 7, the first made-for-iPhone sound processor approved by the Food and Drug Administration. With the combination of the ABI and the Nucleus 7 Sound Processor, Jessica can stream phone calls, video, music and entertainment.. Tune in to learn more about Jessicas unique case and as well as the CI/ABI program at the University of Cincinnati/ Cincinnati Childrens Hospital Medical Center.. ...

As an ENT Specialist and Cochlear Implant Surgeon his area of expertise includes Ear (Otology), Tympanoplasty, Stapedotomy, Ossiculoplasty, Mastoidectomy, Cochlear and Hearing implants, Cochlear Implants (CI), Bone Anchored Hearing Devices (BAHA and Bone bridge), Vibrant Sound bridge middle ear implant (VSB), Auditory Brainstem Implant (ABI), Nose and Sinus (Rhinology), Septoplasty, Turbinate reduction, Nasal Polypectomy, Functional Endoscopic Sinus Surgery, Balloon Sinuplasty, Dacryocystorhinostomy (DCR), Septorhinoplasty, Voice and Throat (Laryngology), Video Laryngoscopy Bronchoscopy, Micro laryngeal surgery, Phonosurgery, Thyroplasty, Bronchoscopy, Oesophagoscopy, Foreign body removal, Tonsillectomy, Dizziness and Vertigo (Neuro-otology), Epleys man oeuvre, Intratympanic Therapy, Endolymphatic sac decompression, Labyrinthectomy, Vestibular nerve section, Children (Pediatric ENT), Tonsillectomy, Adenoidectomy, Myringotomy & Grommets (Ventilation tubes), Laryngo- Tracheo - Bronchoscopy, ...

Please join us for our next Facebook Live event.. NF2, Your Questions Answered. Facebook Live event - to view the live event you must have a Facebook account. Tuesday, January 16, 2018. 7 pm ET, 6 pm CT, 5 pm MT, 4 pm PT. During this LIVE event, Dr. Gustavo Pradilla, Assistant Professor of Neurosurgery and Dr. Esther Vivas, Assistant Professor of Otolaryngology - Head and Neck Surgery at Emory University Medical Center will provide insights on this rare genetic disorder related to acoustic neuromoa. The discussion will cover the natural history of NF2, treatment options including the role of observation as well as surgery and radiation and aural rehabilitation options including cochlear implants and auditory brainstem implants. Please come ready with questions as this will be an interactive discussion where the doctors can answer your questions as you submit them. This event is FREE and open to everyone. Like our Facebook page for updates and visit the page to access the Facebook Live event if ...

October 31, 2014: The Centers for Medicare and Medicaid Services (CMS) issued a final rule that codifies the Medicare policy guidance when a device is not subject to the hearing aid exclusion. The rule finalizes that certain auditory implants, including cochlear implants, brain stem implants, and osseointegrated (bone-anchored) implants, do not meet the definition of hearing aids that are excluded from coverage. ...

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A modular device for coupling a stem to an end component of an implant. The device includes a plurality of rotatably interconnectable intermediate components for coupling the stem to the end component, such that each intermediate component can be rotated for selectively changing a total offset between the stem and the end component by a relative offset.

I was born profoundly deaf, Ive been a cochlear implant user for two years, so I have no knowledge of what its like to hear naturally. This interview with Molly, a brainstem implant recipient, made for fascinating reading. Molly Brown was left profoundly deaf after her auditory nerves were removed during treatment for a genetic illness. In…

while my mom was doing her own research of ABI in the net, she saw an article about penetrating brainstem implant, its the updated version of ABI and the HEI (house ear institute) in california is conducting a study for FDA approval so theyre looking for some patients to have that implanted on them so my mom contacted the writer of the article then he/she said my moms letter has already been forwarded to the person/s who can help us for the said purpose.. but my mom didnt notice that she was 2 years late because the article she read was dated 2005.. but still dr. derald brackman of HEI replied and offeredus to review my case and give his medical opinion.. for free! nice.. nice ...

Have you been diagnosed with metallosis after receiving a Emperion Modular hip stem implant? Our New York defective hip replacement lawyers are here to help.

Filippo Migliorini, Arne Driessen, Giorgia Colarossi, Yasser El Mansy, Matthias Gatz, Markus Tingart & Jörg Eschweiler Abstract Introduction The purpose of the present study was to investigate the role of short stem implants for primary total hip arthroplasty in middle-aged patients. For this purpose, a meta-analysis of the current literatu...

Grey Trace, a mechanic, asks his wife Asha to help him return a refurbished car to his client Eron Keen, a renowned tech innovator. While visiting his home, Eron reveals his latest creation, a multi-purpose chip called STEM with almost unlimited potential. Returning home, Grey and Ashas self-driving car malfunctions and crashes. Four men attack the couple. Asha is killed and Grey is shot in the neck, severing his spinal cord. Grey returns home months later as a wheelchair-bound quadriplegic, under the care of his mother, Pamela. Ashas death and the inability of Det. Cortez to identify their attackers causes Grey to sink into depression. After a suicide attempt, he is visited by Eron, who convinces him to accept a STEM implant, claiming it would allow him to walk again. Grey regains control of his limbs and Eron has Grey sign a non-disclosure agreement, requiring Grey to pretend to still be paralyzed. While watching a drone video feed of his wifes murder, Grey hears STEM speak in his mind. ...

Neurofibromatosis 2 is a dominantly inherited tumor predisposition syndrome caused by mutations in the NF2 gene on chromosome 22. Affected individuals inevitably develop schwannomas typically affecting both vestibular nerves leading to deafness. Rehabilitation with brainstem implants is improving th …

Short stem prostheses provide conservative surgery and favorable metaphyseal load transmission. However, clinical long‐term results are lacking. Therefore, in vitro trials can be used to predict bone‐implant performance. In this in vitro study, primary stability and stress shielding of a new cementless short stem implant was evaluated in comparison to a straight stem using nine pairs of human cadaver femurs. Primary stability, including reversible micromotion and irreversible migration, was assessed in a hip simulator. Furthermore, changes in the pattern of cortical strain were evaluated. The short stem was more resistant to reversible micromotion and irreversible migration into retroversion. Axial stability was similar, with mean reversible micromotions of 9 µm for the short stem and 7 µm for the straight stem. Proximal load transmission was more physiological with the short stem, though both implants could not avoid stress shielding in Gruen zones 1 and 7. Primary stability of the short ...

Re-imagining discovery and access to research: grants, datasets, publications, citations, clinical trials, patents and policy documents in one place.

The Ear Center of Greensboro, P.A, specializes in pediatric and adult medical and surgical treatment of Ear disorders and hearing loss, Ear, nose, and throat disorders, Ear tubes and Tonsillectomy & Adenoidectomy, Middle ear and mastoid surgery, Sinus disease, Hearing evaluation & testing, Hearing aids and hearing implants for hearing restoration, Cochlear implants, BAHA implants, and advanced Implantable Hearing Device technology, Balance/vertigo disorders and testing, Hearing aid/hearing implant sales and service.

Expertise, Disease and Conditions: Acoustic Neuromas, Balance Disorders, Brain Tumors, Chronic Otitis Media, Cochlear Implantation, Hearing Aids, Hearing Loss, Hearing Restoration, Otolaryngology, Otology, Otosclerosis, Skull Base ...

TY - JOUR. T1 - Periprosthetic fractures of the humerus. AU - Schmidt, A. H.. PY - 1999/1/1. Y1 - 1999/1/1. N2 - Periprosthetic fractures of the humerus complicate 2-4% of total shoulder arthroplasties. Intraoperative fractures are more common than those that occur after surgery and are usually the result of faulty surgical technique. Patients with osteoporosis are at increased risk for periprosthetic fracture of the humerus, and these injuries are most common in patients with rheumatoid arthritis. Common mechanisms of intraoperative fracture include excessive external rotation forces because of poor operative exposure, improper starting hole location, and too forceful impaction. Intraoperative fractures should be stabilized with cerclage wires, and long- stem implants should be used if the fracture involves the shaft of the humerus. Postoperative fractures frequently compromise the functional abilities of the patient; operative treatment seems to give the best results. Treatment is based on a ...

In less extensive cholesteatomas, especially when infection is well controlled before surgery, an intact canal wall operation may be the favoured procedure. This operation preserves the wall between the middle ear and mastoid. The principal advantages of the intact canal wall operation are a more normal canal and ear drum, and a greater possibility of hearing restoration. In addition, most patients with the intact canal wall operation can allow water in the ear. The chief disadvantage of the intact canal wall operation is that a regrowth of cholesteatoma may not be evident. Thus, many ear surgeons will delay rebuilding the bones of hearing for a year after an intact canal wall operation for cholesteatoma. The ear drum is opened at the second operation and the bones of hearing are then reconstructed. If a regrowth of cholesteatoma is found, the disease is again removed and reconstruction may be delayed for another 6 months or a year. Repeat CT scans may also be performed in some cases to avoid ...

Conclusions and significance: Two cases showed worse THI in both mixed hearing loss cases with a small hearing improvement. The mechanism of improvement is similar to tinnitus retraining therapy including hearing aid because the increase in external sound input through hearing restoration after surgery to avoid silence. PMID: 32049560 [PubMed - as supplied by publisher]...

The mammalian cochlea is a complex macroscopic structure due to its helical shape and the microscopic arrangements of the individual layers of cells. To improve the outcomes of hearing restoration in deaf patients, it is important to understand the anatomic structure and composition of the cochlea ex vivo. Hitherto, only one histological technique based on confocal laser scanning microscopy and optical clearing has been developed for in toto optical imaging of the murine cochlea. However, with a growing size of the specimen, e.g., human cochlea, this technique reaches its limitations. Here, we demonstrate scanning laser optical tomography (SLOT) as a valuable imaging technique to visualize the murine cochlea in toto without any physical slicing. This technique can also be applied in larger specimens up to cm3 such as the human cochlea. Furthermore, immunolabeling allows visualization of inner hair cells (otoferlin) or spiral ganglion cells (neurofilament) within the whole cochlea. After image ...

SM. Morrissey, AR Bradwell; Auditory Brain Stem Evoked Potentials in Acute Mountain Sickness. Clin Sci (Lond) 1 January 1990; 78 (s22): 33P. doi: https://doi.org/10.1042/cs078033Pc. Download citation file:. ...

Purchase Tumors of the Ear and Lateral Skull Base: Part 1, An Issue of Otolaryngologic Clinics of North America, Volume 48-2 - 1st Edition. Print Book & E-Book. ISBN 9780323359801, 9780323370042

2005 (English)In: Cochlear Implants International, ISSN 1556-9152, Vol. 6, no S1, 79-81 p.Article in journal (Refereed) Published ...

Save time learning, be better prepared and learn everything about this topic: Structures seen on the anterior and lateral views of the skull.

A bone-anchored hearing aid (BAHA) is an implantable hearing device used to treat hearing loss. The device is meant for individuals who wont benefit from a traditional hearing aid. To learn more about BAHA, call 714-456-7017.

This paper presents the effects of spontaneous random activity on information transmission in an auditory brain stem neuron model. In computer simulations, the supra-threshold synaptic current stimuli ascending from auditory nerve fibers (ANFs) were modeled by a filtered inhomogeneous Poisson process modulated by sinusoidal functions at a frequency of 220-3520 Hz with regard to the human speech spectrum. The stochastic sodium and stochastic high- and low-threshold potassium channels were incorporated into a single compartment model of the soma in spherical bushy neurons, so as to realize threshold fluctuations or a variation of spike firing times. The results show that the information rates estimated from the entropy of inter-spike intervals of spike trains tend toward a convex function of the spontaneous rates when the intensity of sinusoidal functions decreases. Furthermore, the results show that a convex function of the spontaneous rates tends to disappear as the frequency of the sinusoidal function

Gender specific differences in auditory brain stem response in young patients with ADHD, Emma Claesdotter-Hybbinette, Matti Cervin, Sofia Akerlund, Maria Rastam, Magnus Lindvall

We conducted a retrospective study to analyze the role of the cervical and lateral skull base approaches in the surgical excision of parapharyngeal space (PPS) tumors. Our study population was made up of 34 patients-15 males and 19 females, aged 13 to 73 years (mean: 50.6)-who ...

Hearing is tested by auditory brain stem recordings (Tucker-Davis). Anesthetized mice are placed in a sound-attenuated chamber. Tone bursts (2 ms duration at 8, 16 and 32 kHz) and click stimuli (1 ms duration) are presented (21 per sec) via a free field electrostatic speaker. Responses are recorded over 10 ms. 1000 recordings are averaged. Click and tone burst stimuli are presented at intensities varying between 90 and 10 dB SPL in 10 dB intervals. Auditory thresholds are obtained by a visual comparison of wave forms.. ...

A bone-anchored hearing aid (Baha) consists of a titanium implant located at the mastoid, and a sound processor connected with the implant. The sound processor delivers bone conducted stimuli to the cochlea, bypassing the outer and middle ear.. Some patients who are unable to wear or do not benefit from a conventional air-conduction hearing aid, are candidate for a Baha. Typically, these patients suffer from a conductive or a mixed hearing loss. Recently however, Bahas are also being recommended in patients with unilateral deafness. Sound coming from the deaf side is captured and transmitted through bone conduction to the normal inner ear. The overall benefit of a Baha is more difficult to assess in those patients.. Therefore, the goal of the current study is to examine the benefit of a Baha in patients with different audiological profiles (unilateral or bilateral conductive or mixed hearing loss, and unilateral deafness). Special attention will be given to predictive determinants of the ...

Expertise, Disease and Conditions: Acoustic Neuromas, Bilateral Loss of Vestibular Sensation, Bone Anchored Hearing Devices, Cholesteatoma, Cochlear Implantation, Hearing Restoration, Menieres Disease, Neurotology, Otolaryngology, Otolaryngology (ENT), Otology, Skull Base Surgery, Superior Canal Dehiscence Syndrome, Vertigo, Vestibular Disorders, Vestibular ...

TY - JOUR. T1 - Comparison of beyer dt48 and etymotic insert earphones. T2 - Auditory brain stem response measurements. AU - Beauchaine, K. A.. AU - Kaminski, J. R.. AU - Gorga, Michael P. PY - 1987/10. Y1 - 1987/10. N2 - Click-evoked auditory brain stem responses (ABRs) were measured using a Beyer DT48 circumaural earphone and an Etymotic ER-3A insert earphone in a group of normal-hearing subjects. Comparisons were made between time waveforms and amplitude spectra for the two transducers. ABR waveforms, latencies, and thresholds were compared for the two transducers. Click-evoked ABR and behavioral thresholds were comparable for the two earphones. In addition, absolute response-component latencies differed by an amount that was equivalent to the travel time introduced by the insert earphones sound-delivery tube. Inter-peak latency differences were virtually identical. These findings suggest that the insert earphone is a viable transducer for clinical ABR evaluations. Further, a temporal ...

Long awaited, this fine surgical atlas covers all aspects of neuro-otology and lateral skull base procedures in comprehensively in detail. The lavishly illustrated step-by-step guide is written by two ...

Staying active is an important part of a healthy lifestyle. For some that could mean daily walks, for others a rigorous yoga practice. Or it could be as simple as being out and about running errands. But no matter what it is that has you on the move, one thing is true: Youll want to take care of your joints so that yo

A bone-anchored hearing system is a device permanently implanted in the skull that helps with hearing loss. The system works by picking up sound vibrations. The ear is made up of the external ear canal, the middle ear, and the inner ear. The middle ear is separated from the ear canal by the eardrum. The inner ear...

Experts weigh the pros and cons of surgery for recurrent thyroid tumors, and safety of bone-anchored hearing aids versus unilateral cochlear implants in a panel discussion at the Triological Societys Combined Sections Meeting in Miami Beach, Fla. in January. ...

Data release 12 has been published on the IMPC website. The number of phenotyped mutant lines has reached 7,606 bringing the total number of phenotyped genes to 7,022.. Data release 12 is a major data release and includes the changing of our statistical pipeline from PhenStat to OpenStats. This release also brings a more sensitive detection for the auditory brain stem response screen, more information about the statistical classification of results and better quality controlled late adult data.. Read the full release notes here.. ...