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Hearing Preservation

Thibaud Dumon, Inge Wegner, Neil Sperling, Wilko Grolman
OBJECTIVE: To compare the minimal skin punch incision without additional skin incision or soft tissue reduction with the epidermal flap technique and soft tissue reduction, for the implantation of percutaneous bone-anchored hearing devices. STUDY DESIGN: Prospective cohort study. SETTING: Tertiary care referral center. SUBJECTS AND METHODS: Two hundred seventeen patients underwent 220 implantations. Sixty five cases underwent implantation by means of a skin punch resection without soft tissue reduction (punch group) and 155 cases underwent epidermal flap and soft tissue reduction (dermatome group)...
October 21, 2016: Otology & Neurotology
Michele Bailo, Nicola Boari, Filippo Gagliardi, Alberto Franzin, Martina Piloni, Alfio Spina, Marco Gemma, Antonella Del Vecchio, Angelo Bolognesi, Pietro Mortini
OBJECT: Complete vestibular schwannomas (VS) removal is not always achievable without any risk of disabling postoperative complications, especially in terms of facial nerve function. Moreover, even after gross total removal a relevant rate of recurrence has been reported. The aim of this study is to validate Gamma Knife radiosurgery (GKRS) as an effective strategy to treat tumor's regrowth after previous surgery. METHODS: Ninety patients treated with GKRS for VS after previous microsurgery were included in the present study...
October 21, 2016: World Neurosurgery
C C Wu, Y H Chen, T H Yang, K N Lin, S Y Lee, T C Liu, C J Hsu
Congenital ossicular chain anomalies are rare, but are clinically important because hearing loss in most cases is correctable by appropriate surgical interventions. The great diversity in anatomic variations makes congenital ossicular chain anomalies a surgical challenge for otologists. Theoretically, endoscopic surgery might be suitable for management of congenital ossicular chain anomalies by improving visualization of lesions and preserving uninvolved anatomic structures as compared to conventional microscopic surgery...
October 19, 2016: Clinical Otolaryngology
Juul Verberne, Frank Risis, Luke Campbell, Scott Chambers, Stephen O'Leary
HYPOTHESIS: Scala tympani morphology influences the insertion dynamics and intra-scalar position of straight electrode arrays. BACKGROUND: Hearing preservation is the goal of cochlear implantation with current thin straight electrode arrays. These hug the lateral wall, facilitating full, atraumatic insertions. However, most studies still report some postoperative hearing loss. This study explores the influence of scala tympani morphology on array position relative to the basilar membrane and its possible contribution to postoperative hearing loss...
October 12, 2016: Otology & Neurotology
Chang Ho Lee, So Young Kim, Hyoung-Mi Kim, Young Ju Kim, Ji Yoon Kim, Mi Kyung Kim
OBJECTIVES: To study the influence of the cochleariform process abutment (CPA) of early congenital cholesteatomas (CC) (ECCs) on surgical outcomes. STUDY DESIGN: Retrospective case review. SETTING: University hospital otology referral clinic. PATIENTS: Two hundred consecutive pediatric ECC patients. INTERVENTIONS: The patients were classified into three groups based on the temporal bone computed tomography (TBCT) findings of ECC: A) the absence of CPA, B) the presence of CPA, and C) the presence of CPA and extension posterior to the malleus handle...
October 12, 2016: Otology & Neurotology
Maja Svrakic, J Thomas Roland, Sean O McMenomey, Mario A Svirsky
OBJECTIVE: To describe our initial operative experience and hearing preservation results with the Advanced Bionics (AB) Mid Scala Electrode (MSE). STUDY DESIGN: Retrospective review. SETTING: Tertiary referral center. PATIENTS: Sixty-three MSE implants in pediatric and adult patients were compared with age- and sex-matched 1j electrode implants from the same manufacturer. All patients were severe to profoundly deaf. INTERVENTION: Cochlear implantation with either the AB 1j electrode or the AB MSE...
October 12, 2016: Otology & Neurotology
Constantin von Kirschbaum, Robert Gürkov
Introduction. Vestibular schwannomas (VS) are benign tumours of the vestibular nerve and can lead to hearing loss, tinnitus, vertigo, facial palsy, and brainstem compression. Audiovestibular diagnostic tests are essential for detection and treatment planning. Methods. Medline was used to perform a systematic literature review with regard to how audiovestibular test parameters correlate with symptoms, tumour size, and tumour location. Results. The auditory brainstem response can be used to diagnose retrocochlear lesions caused by VS...
2016: BioMed Research International
Ricardo Ferreira Bento, Fabiana Danieli, Ana Tereza de Matos Magalhães, Dan Gnansia, Michel Hoen
Introduction The preservation of residual hearing is currently an important challenge for cochlear implant surgeries. Indeed, if patients exhibit functional hearing after cochlear implantation, they can benefit from the combination of acoustical stimulation, usually in the low-frequencies and electrical stimulation in the high-frequencies. This combined mode of stimulation has proven to be beneficial both in terms of speech perception and of sound quality. Finding the right procedures for conducting soft-surgeries and designing electrode arrays dedicated to hearing preservation is an open issue...
October 2016: International Archives of Otorhinolaryngology
M Müller, M Tisch, H Maier, H Löwenheim
BACKGROUND: High-intensity noise exposure from impulse and blast noise events often leads to acute hearing loss and may cause irreversible permanent hearing loss as a long-term consequence. Here, a treatment regime was developed to limit permanent damage based on a preclinical animal model of acute noise trauma. AIM: To develop clinical trials for the treatment of acute noise traumas using approved drugs. The otoprotective potential of glucocorticoids applied locally to the inner ear was examined...
October 14, 2016: HNO
S Rosahl, D Eßer
BACKGROUND: The experience of the medical team, interdisciplinarity, quality of the physician-patient relationship, sensible use of modern technology, and a sound knowledge about the long-term results of observation and interventions all influence treatment quality in patients with vestibular schwannomas. OBJECTIVES: Compilation of findings regarding the results of observation and microsurgical treatment of patients with these tumors. Deduction of strategies for the medical management from these data...
October 14, 2016: HNO
Sedat Doğan, Hasmet Yazici, Esin Yalçinkaya, Halil Ibrahim Erdoğdu, Sibel Alicura Tokgöz, Furkan Sarici, Mehmet Namuslu, Yasin Sarikaya
Cisplatin is an effective chemotherapeutic agent in the treatment of several types of malignant solid tumors but its clinical use is associated with ototoxicity. In the present study, we investigated the effect of selenium administration on lipid peroxidation (malondialdehyde [MDA]) and cisplatin-induced ototoxicity in rats. Healthy wistar albino rats (n = 21) were randomly divided into 3 groups: control (C), cisplatin (Cis), cisplatin and selenium (Cis+Se). Cisplatin was administered for 3 days to Cis and Cis+Se groups...
October 2016: Journal of Craniofacial Surgery
Joseph A Gil, Steven F DeFroda, Kunal Sindhu, Aristides I Cruz, Alan H Daniels
Osteogenesis imperfecta is caused by qualitative or quantitative defects in type I collagen. Although often considered a disease with primarily pediatric manifestations, more than 25% of lifetime fractures are reported to occur in adulthood. General care of adults with osteogenesis imperfecta involves measures to preserve bone density, regular monitoring of hearing and dentition, and maintenance of muscle strength through physical therapy. Surgical stabilization of fractures in these patients can be challenging because of low bone mineral density, preexisting skeletal deformities, or obstruction by instrumentation from previous surgeries...
October 13, 2016: Orthopedics
Noa Rozendorn, Michael Wolf, Arkadi Yakirevich, Yisgav Shapira, Eldar Carmel
BACKGROUND: Tympanic membrane perforation (TMP) may be caused by acute and chronic otitis media, trauma and iatrogenic reasons. The goal of myringoplasty is to achieve a dry, self-cleansing ear with intact TM while preserving hearing. Literature review of myringoplasty outcome demonstrates results with different success rates and affecting factors. OBJECTIVES: The aim of this study was to evaluate TMP closure (TMPC) rate and hearing improvement and to assess the effect of clinical and surgical parameters on residual and recurrent perforation...
November 2016: International Journal of Pediatric Otorhinolaryngology
Raphaël Jumeau, Pierre-Yves Bondiau, Cécile Parietti-Winkler, Julia Salleron, Thierry Civit, Didier Peiffert, Valérie Bernier-Chastagner
PURPOSE: Fractionated stereotactic radiotherapy (FSR) is a recognized treatment for vestibular schwannomas (VS). This study's aim is to present clinical outcomes and local control (LC) results for patients with VS treated with FSR using the Cyberknife® (CK) in 2 French cancer centers. METHODS: Patients treated with FSR for VS between 2007 and 2012 were retrospectively analyzed. Local control was determined using follow-up MRI. The hearing preservation (HP) rate was determined by analyzing pretreatment and posttreatment audiograms...
September 22, 2016: Tumori
Elisabeth Mamelle, Naila El Kechai, Benjamin Granger, Olivier Sterkers, Amélie Bochot, Florence Agnely, Evelyne Ferrary, Yann Nguyen
Goals of cochlear implantation have shifted from complete insertion of the cochlear electrode array towards low traumatic insertion with minimally invasive techniques. The aim of this study was first to evaluate, in a guinea pig model of cochlear implantation, the effect of a motorized insertion technique on hearing preservation. The second goal was to study a new gel formulation containing dexamethasone phosphate loaded in liposomes (DEX-P). Guinea pigs had a unilateral cochlear implantation with either a manual technique (n = 12), or a motorized technique (n = 15), with a 0...
October 6, 2016: European Archives of Oto-rhino-laryngology
Sampath Chandra Prasad, Gianluca Piras, Enrico Piccirillo, Abdelkader Taibah, Alessandra Russo, Jingchun He, Mario Sanna
OBJECTIVE: To review the classification and management of petrous bone cholesteatomas (PBCs) at our center and the outcomes of facial nerve (FN) management in these lesions. METHODS: This was a retrospective study. The setting was a quaternary referral center for skull base pathology in Italy. A total of 200 patients with 201 PBCs were included in the study. All patients diagnosed radiologically with PBCs were classified according to the Sanna classification. All patients were surgically treated and followed up with radiology...
October 7, 2016: Audiology & Neuro-otology
Nicolas -Xavier Bonne, Rabih Aboukais, Marc Baroncini, Audrey Hochart, Pierre Leblond, Franck Broly, Frédérique Dubrulle, Jean-Paul Lejeune, Christophe Vincent
OBJECTIVE: This study aims to describe the clinical and molecular presentation of pediatric neurofibromatosis type 2 (NF2) and the subsequent management of vestibular schwannomas (VS) and hearing rehabilitation. METHODS: This is a single-center retrospective study of neurofibromatosis type 2 diagnosed before the age of 18 years old from 1997. Natural history of vestibular schwannomas and surgical outcomes were evaluated using volumetric MRI, hearing, and facial nerve assessment...
October 4, 2016: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
Hannah J D North, Deborah Mawman, Martin O'Driscoll, Simon R Freeman, Scott A Rutherford, Andrew T King, Charlotte Hammerbeck-Ward, D Gareth Evans, Simon K W Lloyd
In neurofibromatosis type 2 (NF2) bilateral vestibular schwannomas (VS) or their treatment usually results in bilateral hearing loss. Cochlear implantation (CI) was traditionally not used in these patients due to concern that retrocochlear disease would render the implant ineffective. This paper describes the auditory outcomes of CI in 13 patients with NF2 and includes patients with untreated VS and patients undergoing VS removal with cochlear nerve preservation. The non-user rate was 7.7%. Of the active users, median CUNY score was 98%, median BKB score in quiet was 90% and median BKB score in noise was 68%...
July 2016: Cochlear Implants International
T Rader, H Fastl, U Baumann
BACKGROUND: After implantation of cochlear implants with hearing preservation for combined electronic acoustic stimulation (EAS), the residual acoustic hearing ability relays fundamental speech frequency information in the low frequency range. With the help of acoustic simulation of EAS hearing perception the impact of frequency and level fine structure of speech signals can be systematically examined. OBJECTIVE: The aim of this study was to measure the speech reception threshold (SRT) under various noise conditions with acoustic EAS simulation by variation of the frequency and level information of the fundamental frequency f0 of speech...
September 26, 2016: HNO
Ingo Todt, Marlene Mittmann, Arneborg Ernst, Philipp Mittmann
CONCLUSION: Based on this model experiment, a small tip and low volume electrode show lowest intra-cochlear pressure values. Insertional support by a tool minimizes fast pressure changes. Higher electrodes volumes affect slow and fast pressure changes as well. OBJECTIVE: Insertion causing low intra-cochlear pressure is assumed to be important for atraumatic cochlear implant surgery to preserve residual hearing. Cochlear implant electrodes differ in terms of parameters like tip size, length, volume, and technique of insertion...
September 23, 2016: Acta Oto-laryngologica
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