Read by QxMD icon Read

Hearing Preservation

Colin J Przybylowski, Jacob F Baranoski, Gabriella M Paisan, Kristina M Chapple, Andrew J Meeusen, Stephen Sorensen, Kaith K Almefty, Randall W Porter
Fractionated CyberKnife radiosurgery (CKRS) treatment for acoustic neuromas may reduce the risk of long-term radiation toxicity to nearby critical structures compared to that of single-fraction radiosurgery. However, tumor control rates and clinical outcomes after CKRS for acoustic neuromas are not well described. We retrospectively reviewed all acoustic neuroma patients treated with CKRS (2004-2011) in a prospectively maintained clinical and radiographic database. Treatment failure, the need for additional surgical intervention, was evaluated using Kaplan-Meier analysis...
February 12, 2019: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Robert M Rhodes, Betty S Tsai Do
The advances in technology leading to rapid developments in implantable auditory devices are constantly evolving. Devices are becoming smaller, less visible, and more efficient. The ability to preserve hearing outcomes with cochlear implantation will continue to evolve as surgical techniques improve with the use of continuous feedback during the procedure as well as with intraoperative delivery of drugs and robot assistance. As engineering methods improve, there may one day be a totally implantable aid that is self-sustaining in hearing-impaired patients making them indistinguishable from patients without hearing loss...
February 11, 2019: Otolaryngologic Clinics of North America
Muhammad Shaheryar Ahmed Rajput, Ahmad Nawaz Ahmad, Asif Ali Arain, Mohammad Adeel, Saeed Akram, Muhammad Sohail Awan, Muhammad Ehsan Bari
Introduction Vestibular schwannomas (VS) are the most common benign neoplasms of a cerebellopontine angle (CPA), which arise from the Schwann cells of the vestibulocochlear nerve. Eighty percent of CPA tumors are VS followed by meningioma as the second common mass lesion in this critical potential space. Treatment options range from watchful waiting with serial imaging studies to radiosurgery or a microsurgical excision or a combination of surgery and radiation therapy. The primary objective of the study was to assess hearing and facial nerve status before and after the surgery via the retrosigmoid approach...
December 4, 2018: Curēus
Abigail A Kressner, Tobias May, Torsten Dau
It has been suggested that the most important factor for obtaining high speech intelligibility in noise with cochlear implant (CI) recipients is to preserve the low-frequency amplitude modulations of speech across time and frequency by, for example, minimizing the amount of noise in the gaps between speech segments. In contrast, it has also been argued that the transient parts of the speech signal, such as speech onsets, provide the most important information for speech intelligibility. The present study investigated the relative impact of these two factors on the potential benefit of noise reduction for CI recipients by systematically introducing noise estimation errors within speech segments, speech gaps, and the transitions between them...
January 2019: Trends in Hearing
Ivo J Kruyt, Herman Kok, Arjan Bosman, Rik Chrétien Nelissen, Emmanuel Antonia Maria Mylanus, Myrthe Karianne Sofie Hol
OBJECTIVES: To evaluate the three-year clinical and audiological outcomes of soft-tissue preservation compared to soft-tissue reduction in linear incision surgery for percutaneous implant for bone conduction (BC) devices. METHODS: Twenty-five patients (25 implants) were enrolled in a prospective cohort for implant surgery with linear incision and tissue preservation. The control group consisted of 25 patients (25 implants) from a previous randomized controlled trial in which a linear incision with soft-tissue reduction was applied...
March 2019: Otology & Neurotology
Thomas Lenarz, Max Eike Timm, Rolf Salcher, Andreas Büchner
OBJECTIVE: Aim of this study was to evaluate the method of partial insertion of flexible lateral wall electrodes in patients with residual hearing and potential electric-acoustic stimulation (EAS) users. PATIENTS AND INTERVENTION: N = 6 patients with a high-frequency hearing loss were treated with a partial insertion using atraumatic lateral wall electrodes. In three cases, a electrode of 24 mm length was inserted with the aim to achieve a 16 mm insertion depth and in three cases a electrode of 28 mm length to achieve a 20 mm insertion depth...
March 2019: Otology & Neurotology
David R Friedmann, Emily Kamen, Baishakhi Choudhury, J Thomas Roland
INTRODUCTION: In 2016 the Cochlear CI532 received FDA approval and has since been the primary full-length electrode from this manufacturer implanted at our center. Our experience to date including surgical technique and early patient outcomes are reviewed here. METHODS: Since 2016, this array was used as our standard full length Cochlear array, including children with normal anatomy, with 237 total implantations. Surgical experience and clinical outcomes including low frequency hearing preservation and speech perception on CNC words were analyzed in those with at least 6 months follow-up implanted through June 2017 (n = 94)...
March 2019: Otology & Neurotology
A Morgan Selleck, Lisa R Park, Baishakhi Choudhury, Holly F B Teagle, Jennifer S Woodard, Erika B Gagnon, Kevin D Brown
OBJECTIVE: To determine factors that influence low-frequency hearing preservation following pediatric cochlear implantation and compare hearing preservation outcomes between 20 and 24 mm depth lateral wall electrodes. STUDY DESIGN: Retrospective chart review. SETTING: Tertiary academic referral center. PATIENTS: Pediatric cochlear implant recipients (under the age of 18) who presented preoperatively with a low-frequency pure tone average (LFPTA; 125, 250 and 500 Hz) ≤ 70 dB HL...
March 2019: Otology & Neurotology
Camille C Dunn, Elizabeth A Walker, Stephanie Gogel, Tanya Van Voorst, Marlan Hansen, Bruce J Gantz
OBJECTIVE: The goal of this investigation was to determine if a short electrode in one ear and standard electrode in the contralateral ear could be an option for infants with congenital profound deafness to theoretically preserve the structures of the inner ear. Similarities in performance between ears and compared with a control group of infants implanted with bilateral standard electrodes was evaluated. STUDY DESIGN: Repeated-measure, single-subject experiment...
March 2019: Otology & Neurotology
Ahmed R Rizk, Marcus Mehlitz, Martin Bettag
Background and Study Aim  Facial nerve (FN) weakness as a presenting feature in vestibular schwannoma (VS) is extremely rare. We are presenting two different cases of VS with significant facial weakness and reviewed the literature for similar cases. Methods and Results  We are presenting two cases of VS with significant facial weakness. The first case was a 63-year-old male patient presented with 3 weeks' history of severe left-sided facial weakness (House-Brackmann [HB] grade V) and hearing loss. Magnetic resonance imaging (MRI) of the brain showed a tumor in the left internal auditory canal...
February 2019: Journal of Neurological Surgery. Part B, Skull Base
Aina Venkatasamy, Daphné Le Foll, Carine Eyermann, Hella Vuong, Dominique Rohmer, Anne Charpiot, Francis Veillon
OBJECTIVES: Lateral semicircular canal (LSCC) malformations  are one of the most common inner ear malformations. The purpose of this study is to analyze the prevalence and type of hearing losses associated with LSCC malformations, compared to a control group. MATERIALS AND METHODS: We retrospectively included 109 patients (166 ears) presenting with a CT-confirmed LSCC malformation, compared to a control group (24 patients). The bony island surface and the width of the inner portion of the LSCC were measured to confirm the malformation...
February 6, 2019: European Archives of Oto-rhino-laryngology
Anand V Kasbekar, Yu Chuen Tam, Robert P Carlyon, John M Deeks, Neil Donnelly, James Tysome, Richard Mannion, Patrick R Axon
Objectives  A decision on whether to insert a cochlear implant can be made in neurofibromatosis 2 (NF2) if there is objective evidence of cochlear nerve (CN) function post vestibular schwannoma (VS) excision. We aimed to develop intraoperative CN monitoring to help in this decision. Design  We describe the intraoperative monitoring of a patient with NF2 and our stimulating and recording set up. A novel test electrode is used to stimulate the CN electrically. Setting  This study was set at a tertiary referral center for skull base pathology...
January 2019: Journal of Neurological Surgery Reports
Kevin Y Zhan, Kasey W Rawlins, Jameson K Mattingly, Prashant S Malhotra, Oliver F Adunka
OBJECTIVES: The optimal timing and technique for repairing chronic tympanic membrane (TM) perforations in pediatric patients remains controversial. The objectives are to determine the surgical and hearing outcomes of pediatric lateral graft tympanoplasty at a tertiary teaching hospital. METHODS: A retrospective review was conducted for pediatric lateral graft tympanoplasties performed for chronic TM perforations by a single surgeon over a four-year period. Primary and secondary outcomes were graft failure rate and hearing outcomes, respectively...
January 28, 2019: International Journal of Pediatric Otorhinolaryngology
Keiko Hirose, Song-Zhe Li
The blood-perilymph barrier serves a critical role by separating the components of blood from inner ear fluids, limiting traffic of cells, proteins and other solutes into the labyrinth, and allowing gas (O2 -CO2 ) exchange. Inflammation produces changes in the blood-perilymph barrier resulting in increased vascular permeability. It is commonly thought that compromise of the blood-inner ear barrier would lead to hearing impairment through loss of the endocochlear potential (EP). In fact, the effect of increasing cochlear vascular permeability on hearing function and EP is poorly understood...
January 20, 2019: Hearing Research
Stephanie J Wong, Kristina S Abrams, Kassidy N Amburgey, Yingxuan Wang, Kenneth S Henry
Auditory-nerve fibers are lost steadily with age and as a possible consequence of noise-induced glutamate excitotoxicity. Auditory-nerve loss in the absence of other cochlear pathologies is thought to be undetectable with a pure-tone audiogram while degrading real-world speech perception (hidden hearing loss). Perceptual deficits remain unclear, however, due in part to the limited behavioral capacity of existing rodent models to discriminate complex sounds. The budgerigar is an avian vocal learner with human-like behavioral sensitivity to many simple and complex sounds and the capacity to mimic speech...
January 23, 2019: Hearing Research
Hideaki Moteki, Shin-Ya Nishio, Maiko Miyagawa, Keita Tsukada, Yoshihiro Noguchi, Shin-Ichi Usami
BACKGROUND: Hearing preservation is thought to be achievable following atraumatic surgery with thin cochlear implant electrodes; therefore, the surgical approach and implant electrode design are crucial considerations. OBJECTIVE: To assess the feasibility of hearing preservation with long electrodes for patients meeting the criteria for conventional cochlear implantation. METHODS: One hundred and two patients (132 ears) who underwent cochlear implant surgery were analyzed...
January 31, 2019: Acta Oto-laryngologica
Annmarie Hosie, Jane Phillips, Lawrence Lam, Slavica Kochovska, Beverly Noble, Meg Brassil, Susan E Kurrle, Anne Cumming, Gideon A Caplan, Richard Chye, Brian Le, E Wesley Ely, Peter G Lawlor, Shirley H Bush, Jan Maree Davis, Melanie Lovell, Linda Brown, Belinda Fazekas, Seong Leang Cheah, Layla Edwards, Meera Agar
INTRODUCTION: Delirium is a significant medical complication for hospitalised patients. Up to one-third of delirium episodes are preventable in older inpatients through non-pharmacological strategies that support essential human needs, such as physical and cognitive activity, sleep, hydration, vision and hearing. We hypothesised that a multicomponent intervention similarly may decrease delirium incidence, and/or its duration and severity, in inpatients with advanced cancer. Prior to a phase III trial, we aimed to determine if a multicomponent non-pharmacological delirium prevention intervention is feasible and acceptable for this specific inpatient group...
January 28, 2019: BMJ Open
Yang-Soo Yoon, You-Ree Shin, Ji-Min Kim, Allison Coltisor, Young-Myoung Chun
OBJECTIVES: To optimize patient's maps in Electric Acoustic Stimulation (EAS) users based on the degree of post-operative aided hearing thresholds. METHODS: Twenty-one adult EAS patients participated in this study. Patients were subdivided into three groups, based on their unaided hearing threshold: (1) electric complementary (EC, n = 6) patients with ≤30 dB HL at 125-500 Hz with severe to profound hearing loss at higher frequencies who only use electric stimulation, (2) EAS (n = 8) patients with 30-70 dB HL from 125 to 250 Hz and profound hearing loss in high frequencies who use combined EAS, and (3) Marginal-EAS (M-EAS, n = 7) patients with 70-95 dB HL at frequencies ≤250 Hz who use combined EAS...
January 29, 2019: Cochlear Implants International
Nesrine Benkafadar, Florence François, Corentin Affortit, François Casas, Jean-Charles Ceccato, Julien Menardo, Frederic Venail, Bernard Malfroy-Camine, Jean-Luc Puel, Jing Wang
In our aging society, age-related hearing loss (ARHL) has become a major socioeconomic issue. Reactive oxygen species (ROS) may be one of the main causal factors of age-related cochlear cell degeneration. We examined whether ROS-induced DNA damage response drives cochlear cell senescence and contributes to ARHL from the cellular up to the system level. Our results revealed that sublethal concentrations of hydrogen peroxide (H2 O2 ) exposure initiated a DNA damage response illustrated by increased γH2AX and 53BP1 expression and foci formation mainly in sensory hair cells, together with increased levels of p-Chk2 and p53...
January 28, 2019: Molecular Neurobiology
Viral D Tejani, Paul J Abbas, Carolyn J Brown, Jihwan Woo
Interest in electrocochleography (ECoG) has recently resurged as a potential tool to assess peripheral auditory function in cochlear implant (CI) users. ECoG recordings can be evoked using acoustic stimulation and recorded from an extra- or intra-cochlear electrode in CI users. Recordings reflect contributions from cochlear hair cells and the auditory nerve. We recently demonstrated the feasibility of using Custom Sound EP (clinically available software) to record ECoG responses in Nucleus Hybrid CI users with preserved acoustic hearing in the implanted ear (Abbas et al, 2017)...
January 9, 2019: Hearing Research
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"