keyword
MENU ▼
Read by QxMD icon Read
search

Hearing Preservation

keyword
https://www.readbyqxmd.com/read/28799140/management-of-labyrinthine-fistula-hearing-preservation-versus-prevention-of-residual-disease
#1
S Geerse, M J F de Wolf, F A Ebbens, E van Spronsen
The objective of the study was to evaluate postoperative hearing and disease control after cholesteatoma surgery for labyrinthine fistulas. In a retrospective cohort study, we evaluated a consecutive cohort comprising 44 patients (45 ears) with labyrinthine fistulas associated with chronic otitis media with cholesteatoma who underwent surgery between 2002 and 2015. We looked at patient characteristics, pre- and postoperative bone conduction thresholds (BCT), operative approach and findings, extent of disease and the occurrence of residual disease...
August 10, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28796091/comparing-outcomes-following-salvage-microsurgery-in-vestibular-schwannoma-patients-failing-gamma-knife-radiosurgery-or-microsurgery
#2
Hyun-Jin Lee, Mi Joo Kim, Seung Hyun Koh, Won Seok Chang, In Seok Moon
OBJECTIVE: The increasing use of primary gamma-knife radiosurgery (GKS) for the treatment of vestibular schwannoma (VS) has led to a concomitant increase in the number of patients requiring salvage surgery for GKS failure. When patients underwent GKS as the primary treatment, it is known that dissecting tumor from adjacent nerves during salvage surgery is more difficult. In this report, we share our clinical experience with such patients and analyze the clinical findings of patients with tumor regrowth/recurrence...
August 8, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28796087/hearing-preservation-during-cochlear-implantation-and-electroacoustic-stimulation-in-patients-with-slc26a4-mutations
#3
Kyung Jin Roh, Sera Park, Jin Se Jung, In Seok Moon, Sung Huhn Kim, Mi Young Bang, Jae Young Choi
BACKGROUND AND OBJECTIVES: Patients with SCL26A4 mutations presenting with Mondini deformity and enlarged vestibular aqueduct (EVA) tend to have comparable residual hearing. Although cochlear implantation (CI) produces good results in this group, deterioration of residual hearing can be an adverse event after surgery due to accompanying cochlear malformation and perilymph leakage during cochleostomy. The purpose of this study was to investigate if CI in patients with SCL26A4 mutations via the round window (RW) approach could achieve preservation of residual hearing, and to evaluate their speech reception with electroacoustic stimulation (EAS)...
August 8, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28796083/a-new-slim-modiolar-electrode-array-for-cochlear-implantation-a-radiological-and-histological-study
#4
Matti Iso-Mustajärvi, Hanna Matikka, Frank Risi, Sini Sipari, Teemu Koski, Tytti Willberg, Antti Lehtimäki, Jyrki Tervaniemi, Heikki Löppönen, Aarno Dietz
HYPOTHESIS: To explore the results of a new slim modiolar electrode array (SMA) with respect to intracochlear placement and trauma evaluated by detailed radiologic imaging and histology. BACKGROUND: Hearing and structure preservation is the goal of cochlear implantation for advanced hearing outcomes. Currently, this is most consistently achieved with thin lateral wall electrodes. Modiolar electrodes are located nearer the modiolus and may provide some electrophysiological advantages, but have a greater tendency for causing insertion trauma...
August 8, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28783570/speech-reception-with-different-bilateral-directional-processing-schemes-influence-of-binaural-hearing-audiometric-asymmetry-and-acoustic-scenario
#5
Tobias Neher, Kirsten C Wagener, Matthias Latzel
Hearing aid (HA) users can differ markedly in their benefit from directional processing (or beamforming) algorithms. The current study therefore investigated candidacy for different bilateral directional processing schemes. Groups of elderly listeners with symmetric (N = 20) or asymmetric (N = 19) hearing thresholds for frequencies below 2 kHz, a large spread in the binaural intelligibility level difference (BILD), and no difference in age, overall degree of hearing loss, or performance on a measure of selective attention took part...
July 29, 2017: Hearing Research
https://www.readbyqxmd.com/read/28780465/investigating-the-race-for-the-surface-and-skin-integration-in-clinically-retrieved-abutments-with-two-photon-microscopy
#6
D Kapsokalyvas, M van Hoof, S Wigren, T Chimhanda, H J Kuijpers, F C S Ramaekers, R J Stokroos, M A M J van Zandvoort
Bone conduction hearing implants can rehabilitate some types of hearing loss. A hydroxyapatite (HA)-coated skin-penetrating abutment was developed to allow for soft tissue preservation and increased skin-abutment adherence. Inflammation is thought to relate to bacterial infection of pockets around the abutment. Upon integration, the host's ability to cover the abutment surface ("race for the surface"), and thus control and prevent competitive bacteria from colonizing it, is improved. However, the attachment mechanisms behind it are not clear...
July 27, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28776202/neurotrophin-gene-therapy-in-deafened-ears-with-cochlear-implants-long-term-effects-on-nerve-survival-and-functional-measures
#7
Bryan E Pfingst, Deborah J Colesa, Donald L Swiderski, Aaron P Hughes, Stefan B Strahl, Moaz Sinan, Yehoash Raphael
Because cochlear implants function by stimulating the auditory nerve, it is assumed that the condition of the nerve plays an important role in the efficacy of the prosthesis. Thus, considerable research has been devoted to methods of preserving the nerve following deafness. Neurotrophins have been identified as a potential contributor to neural health, but most of the research to date has been done in young animals and for short periods (less than 3 to 6 months) after the onset of treatment. The first objective of the current experiment was to examine the effects of a neurotrophin gene therapy delivery method on spiral ganglion neuron (SGN) preservation and function in the long term (5 to 14 months) in mature guinea pigs with cochlear implants...
August 3, 2017: Journal of the Association for Research in Otolaryngology: JARO
https://www.readbyqxmd.com/read/28768324/speech-understanding-in-noise-by-patients-with-cochlear-implants-using-a-monaural-adaptive-beamformer
#8
Michael F Dorman, Sarah Natale, Anthony Spahr, Erin Castioni
Purpose: The aim of this experiment was to compare, for patients with cochlear implants (CIs), the improvement for speech understanding in noise provided by a monaural adaptive beamformer and for two interventions that produced bilateral input (i.e., bilateral CIs and hearing preservation [HP] surgery). Method: Speech understanding scores for sentences were obtained for 10 listeners fit with a single CI. The listeners were tested with and without beamformer activated in a "cocktail party" environment with spatially separated target and maskers...
August 2, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28762045/hybrid-cochlear-implantation-quality-of-life-quality-of-hearing-and-working-performance-compared-to-patients-with-conventional-unilateral-or-bilateral-cochlear-implantation
#9
Kati Härkönen, Ilkka Kivekäs, Voitto Kotti, Ville Sivonen, Juha-Pekka Vasama
The objective of the present study is to evaluate the effect of hybrid cochlear implantation (hCI) on quality of life (QoL), quality of hearing (QoH), and working performance in adult patients, and to compare the long-term results of patients with hCI to those of patients with conventional unilateral cochlear implantation (CI), bilateral CI, and single-sided deafness (SSD) with CI. Sound localization accuracy and speech-in-noise test were also compared between these groups. Eight patients with high-frequency sensorineural hearing loss of unknown etiology were selected in the study...
July 31, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28755914/cochlear-nerve-action-potential-monitoring-for-preserving-function-of-an-unseen-cochlear-nerve-in-vestibular-schwannoma-surgery
#10
Mami Ishikawa, Atsuhiro Kojima, Satoshi Terao, Mutsumi Nagai, Gen Kusaka, Heiji Naritaka
BACKGROUND: Intraoperative monitoring of cochlear nerve action potential (CNAP) has been used in patients with small vestibular schwannoma (<15 mm) to preserve cochlear nerve function. We performed surgery for a larger vestibular schwannoma under CNAP monitoring and preserved cochlear nerve function, as compared with that in 10 normal patients showing hemifacial spasm. CASE DESCRIPTION: We report the case of a patient with a 26-mm vestibular schwannoma and normal hearing function who underwent neurosurgery under electrophysiological monitoring of the facial and cochlear nerves...
July 26, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28726592/effect-of-extreme-adaptive-frequency-compression-in-bimodal-listeners-on-sound-localization-and-speech-perception
#11
Lidwien C E Veugen, Josef Chalupper, Lucas H M Mens, Ad F M Snik, A John van Opstal
OBJECTIVES: This study aimed to improve access to high-frequency interaural level differences (ILD), by applying extreme frequency compression (FC) in the hearing aid (HA) of 13 bimodal listeners, using a cochlear implant (CI) and conventional HA in opposite ears. DESIGN: An experimental signal-adaptive frequency-lowering algorithm was tested, compressing frequencies above 160 Hz into the individual audible range of residual hearing, but only for consonants (adaptive FC), thus protecting vowel formants, with the aim to preserve speech perception...
July 20, 2017: Cochlear Implants International
https://www.readbyqxmd.com/read/28725516/how-i-do-it-the-role-of-flexible-hand-held-2%C3%AE-thulium-laser-fiber-in-microsurgical-removal-of-acoustic-neuromas
#12
Luciano Mastronardi, Guglielmo Cacciotti, Raffaele Roperto, Maria Pia Tonelli, Ettore Carpineta
Aims  We performed a retrospective nonrandomized study to analyze the results of microsurgery of acoustic neuromas (AN) using 2μ-thulium flexible hand-held laser fiber (Revolix jr). Methods  From September 2010 to September 2015, 89 patients suffering from AN have been operated on with microsurgical technique via retrosigmoid approach. In 37 cases, tumor resection was performed with the assistance of 2μ-thulium flexible hand-held laser fiber (L-group). Eight cases operated on with the assistance of CO 2 hand-held flexible laser fiber were excluded from this study...
August 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28724501/noise-exposure-alters-long-term-neural-firing-rates-and-synchrony-in-primary-auditory-and-rostral-belt-cortices-following-bimodal-stimulation
#13
Joseph D Takacs, Taylor J Forrest, Gregory J Basura
We previously demonstrated that bimodal stimulation (spinal trigeminal nucleus [Sp5] paired with best frequency tone) altered neural tone-evoked and spontaneous firing rates (SFRs) in primary auditory cortex (A1) 15 min after pairing in guinea pigs with and without noise-induced tinnitus. Neural responses were enhanced (+10 ms) or suppressed (0 ms) based on the bimodal pairing interval. Here we investigated whether bimodal stimulation leads to long-term (up to 2 h) changes in tone-evoked and SFRs and neural synchrony (correlate of tinnitus) and if the long-term bimodal effects are altered following noise exposure...
July 13, 2017: Hearing Research
https://www.readbyqxmd.com/read/28704898/a-case-of-auditory-neuropathy-caused-by-pontine-hemorrhage-in-an-adult
#14
Seung-Hyun Chung, Sung Wook Jeong, Lee-Suk Kim
A pontine hemorrhage can evoke several neurological symptoms because the pons contains various nuclei and nerve fibers. Hearing loss can develop as a result of a pontine hemorrhage because there is an auditory conduction pathway in the cochlear nucleus of the pons. However, very few cases of hearing loss caused by pontine lesions have been reported, and there have been no reports of auditory neuropathy that developed following a pontine hemorrhage. Recently we had a patient who experienced a nontraumatic pontine hemorrhage who was diagnosed with auditory neuropathy...
July 2017: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/28703809/epigallocatechin-3-gallate-a-prototypic-chemopreventative-agent-for-protection-against-cisplatin-based-ototoxicity
#15
Vikrant Borse, Raheem F H Al Aameri, Kelly Sheehan, Sandeep Sheth, Tejbeer Kaur, Debashree Mukherjea, Srinivasan Tupal, Michelle Lowy, Sumana Ghosh, Asmita Dhukhwa, Puspanjali Bhatta, Leonard P Rybak, Vickram Ramkumar
Cisplatin-induced ototoxicity is one of the major factors limiting cisplatin chemotherapy. Ototoxicity results from damage to outer hair cells (OHCs) and other regions of the cochlea. At the cellular level, cisplatin increases reactive oxygen species (ROS) leading to cochlear inflammation and apoptosis. Thus, ideal otoprotective drugs should target oxidative stress and inflammatory mechanisms without interfering with cisplatin's chemotherapeutic efficacy. In this study, we show that epigallocatechin-3-gallate (EGCG) is a prototypic agent exhibiting these properties of an effect otoprotective agent...
July 13, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28700398/the-role-of-preoperative-steroids-in-atraumatic-cochlear-implantation-surgery
#16
Jonathon Lo, Luke Campbell, Phillip Sale, Scott Chambers, Amy Hampson, Hayden Eastwood, Stephen O'Leary
HYPOTHESIS: Depth of insertion is related to the extent of tissue response and low frequency hearing loss. Intravenous steroids have greatest effect in reducing postimplantation fibrosis and hearing loss in the presence of significant electrode insertion trauma, when compared with saline treatment. BACKGROUND: Experiments exploring the enhancement of cochlear implantation (CI) outcomes with glucocorticosteroids have produced mixed results, possibly due to lack of standardization of the CI model...
September 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28699040/-neuroprotective-medication-in-vestibular-schwannoma-surgery
#17
REVIEW
C Scheller, E Herzfeld, C Strauss
BACKGROUND: Except for glucocorticoids there is a lack of neuroprotective medication in neurosurgical interventions. OBJECTIVE: An overview of clinical trials investigating administration of the calcium antagonist nimodipine and hydroxyethyl starch (HES) in vestibular schwannoma (VS) surgery is given. Basic research is addressed and potential neuroprotective effect mechanisms are discussed, as are perspectives for application of the concept to other types of surgery with a risk postoperative impairment of nerve function...
July 11, 2017: HNO
https://www.readbyqxmd.com/read/28688755/simultaneous-masking-between-electric-and-acoustic-stimulation-in-cochlear-implant-users-with-residual-low-frequency-hearing
#18
Benjamin Krüger, Andreas Büchner, Waldo Nogueira
Ipsilateral electric-acoustic stimulation (EAS) is becoming increasingly important in cochlear implant (CI) treatment. Improvements in electrode designs and surgical techniques have contributed to improved hearing preservation during implantation. Consequently, CI implantation criteria have been expanded toward people with significant residual low-frequency hearing, who may benefit from the combined use of both the electric and acoustic stimulation in the same ear. However, only few studies have investigated the mutual interaction between electric and acoustic stimulation modalities...
June 30, 2017: Hearing Research
https://www.readbyqxmd.com/read/28688558/bilateral-congenital-cholesteatoma-surgical-treatment-and-considerations
#19
MULTICENTER STUDY
Daniele Marchioni, Alessia Rubini, Mauricio Gonzalez-Navarro, Matteo Alicandri-Ciufelli, Adrian James, Livio Presutti
OBJECTIVES: To describe a multicenter study regarding surgical management of bilateral congenital cholesteatoma (BCC) and underline the importance of endoscopes in the management of this condition. In BCC, hearing preservation is more crucial than in unilateral cases. The endoscopic approach allows complete removal of cholesteatoma via a minimally invasive technique offering low residual disease rates while preserving the normal physiology of the middle ear and possibly the ossicular chain...
August 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28687426/quantitative-imaging-analysis-of-transcanal-endoscopic-infracochlear-approach-to-the-internal-auditory-canal
#20
Judith S Kempfle, Benjamin Fiorillo, Vivek V Kanumuri, Samuel Barber, Albert S B Edge, Marybeth Cunnane, Aaron K Remenschneider, Daniel J Lee, Elliott D Kozin
PURPOSE: A transcanal endoscopic infracochlear surgical approach to the internal auditory canal (IAC) in a human temporal bone model has previously been described. However, the proportion of patients with favorable anatomy for this novel surgical technique remains unknown. Herein, we perform a quantitative analysis of the transcanal endoscopic infracochlear corridor to the IAC based on computed tomography. MATERIALS AND METHODS: High resolution computed tomography scans of adult temporal bones were measured to determine the accessibility of the IAC when using an endoscopic transcanal, cochlear-sparing surgical corridor...
April 4, 2017: American Journal of Otolaryngology
keyword
keyword
109787
1
2
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"