609 results match your criteria Cochlear Implants Surgical Technique


Neuromonitoring of the cochlear nerve during vestibular schwannoma resection and simultaneous cochlear implantation.

HNO 2021 May 21. Epub 2021 May 21.

Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Doberaner Straße 137-139, 18057, Rostock, Germany.

Vestibular schwannomas (VS) are benign tumors that originate from the nerve sheath of one of the two vestibular nerves. VS can have a severe impact on everyday life of the patient and may lead to symptoms such as vertigo, hearing loss (e.g. Read More

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Clinical Implementation of Second-generation Minimally Invasive Image-guided Cochlear Implantation Surgery.

Otol Neurotol 2021 06;42(5):702-705

Department of Electrical Engineering and Computer Science, Vanderbilt University, Nashville, Tennessee.

Objective: Minimally invasive, image-guided cochlear implantation (CI) surgery consists of drilling a precise tunnel from the surface of the mastoid cortex through the facial recess to target the scala tympani. In the first set of clinical trials of this technique, heat-induced facial nerve paresis (House-Brackmann II/VI) occurred on a patient on the last day of the initial trial which was scheduled to be halted secondary to a change in the regulatory requirements dictated by the 2012 the Food and Drug Administration Safety and Innovation Act requiring Investigational Device Exemption approval for previously exempted customized medical device testing. To address this adverse event, extensive changes were made to the drilling protocol; additionally, a custom insertion tool was developed. Read More

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Spectral resolution and speech perception after cochlear implantation using the round window versus cochleostomy technique.

J Laryngol Otol 2021 Jun 7;135(6):513-517. Epub 2021 May 7.

Departments of Otorhinolaryngology - Head and Neck Surgery, Ankara Medipol University, School of Health Sciences, Ankara, Turkey.

Objective: To evaluate the spectral resolution achieved with a cochlear implant in users who were implanted using round window route electrode insertion versus a traditional cochleostomy technique.

Methods: Twenty-six patients were classified into two groups according to the surgical approach: one group (n = 13) underwent cochlear implantation via the round window technique and the other group (n = 13) underwent surgery via cochleostomy.

Results: A statistically significant difference was found in spectral ripple discrimination scores between the round window and cochleostomy groups. Read More

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A retrospective evaluation of minimally invasive ponto surgery (MIPS) in two pediatric centers.

Cochlear Implants Int 2021 Mar 30:1-5. Epub 2021 Mar 30.

Section of Otolaryngology - Head & Neck Surgery, Department of Surgery, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.

Background: Percutaneous bone anchored hearing systems have been used effectively for over forty years with low rates of complications. Minimally Invasive Ponto Surgery (MIPS) is a surgical technique performed through a puncture hole that has been reported to minimize soft tissue trauma and decrease operative time. Due to it being a relatively new procedure there remains a paucity of pediatric outcomes data. Read More

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[Neuromonitoring of the cochlear nerve during vestibular schwannoma resection and simultaneous cochlear implantation. German version].

HNO 2021 Mar 17. Epub 2021 Mar 17.

Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Straße 137-139, 18057, Rostock, Deutschland.

Vestibular schwannomas (VS) are benign tumors that originate from the nerve sheath of one of the two vestibular nerves. VS can have a severe impact on everyday life of the patient and may lead to symptoms such as vertigo, hearing loss (e.g. Read More

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Inflammation at the Tissue-Electrode Interface in a Case of Rapid Deterioration in Hearing Performance Leading to Explant After Cochlear Implantation.

Otol Neurotol 2021 04;42(4):e445-e450

Clinical and Experimental Sciences, Faculty of Medicine, Institute for Life Sciences, University of Southampton, Southampton, UK.

Objective: The reasons for soft failure after cochlear implantation require investigation. This study proposes a method to study and characterize the tissue response to the array in a case of soft failure in a person undergoing reimplantation.

Case: The woman in her 50s, with an underlying autoimmune condition, received a cochlear implant using hearing preservation technique after developing profound hearing loss more than 2 kHz with a moderate loss of less than 500 Hz over a 10-year period. Read More

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Predictors of Postoperative Electrode Deactivation Among Adult Cochlear Implantees.

Otol Neurotol 2021 07;42(6):e675-e683

Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania.

Objective: To characterize postoperative electrode functionality after adult cochlear implantation; to identify rationale and risk factors for electrode deactivation.

Study Design: Retrospective Chart Review.

Setting: Academic Cochlear Implant Center. Read More

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Reduced Spread of Electric Field After Surgical Removal of Intracochlear Schwannoma and Cochlear Implantation.

Otol Neurotol 2020 12;41(10):e1297-e1303

Department of Otorhinolaryngology, Head and Neck Surgery, Martin Luther University Halle-Wittenberg, University Medicine Halle, Halle, Germany.

Objective: The primary aim of the study was to explore whether reduced spread of electrical field is observed after partial or subtotal cochleoectomy and cochlear implantation compared with standard cochlear implantation. Secondarily, the influence on speech perception was explored comparing both groups.

Study Design: Nonconcurrent cohort study. Read More

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December 2020

Management of Severe Cochlear Implant Infections-35 Years Clinical Experience.

Otol Neurotol 2020 12;41(10):1341-1349

Department of Otolaryngology, University of Melbourne.

Objective: Infectious complications occurring in cochlear implant (CI) recipients is of potentially major impact. A better understanding of severe infections in this cohort is necessary.

Design: Single-center, retrospective cohort study. Read More

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December 2020

[Threshold dynamics of the auditory nerve electrically evoked compound action potential in implanted children].

Vestn Otorinolaringol 2020 ;85(6):17-22

National Research Centre for Audiology and Hearing Rehabilitation, Moscow, Russia.

Objective: To study the dynamics of thresholds of the electrically evoked compound action potential of the auditory nerve (ECAP) during neural responce telemetry (NRT) intraoperatively, at the time of activation of the cochlear implantation system (CI) and after 3 and 6 months.

Material And Methods: The study included 50 children aged 1 year to 4 years with bilateral sensorineural deafness, operated on by Nucleus CI512 Profile + CP900 CI systems («Cochlear», Australia). In all patients, the electrode array was fully inserted. Read More

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January 2021

Pharmacological, Surgical and Diagnostic Innovations in Meniere's Disease: A Review.

Transl Med UniSa 2020 Dec 31;23:48-52. Epub 2020 Dec 31.

Surgical Sciences Department, University of Turin, Turin, Italy.

Purpose: To investigate literature about pharmacological, surgical, and diagnostic innovations for Meniere's Disease (MD).

Summary: Meniere's disease is an inner ear disorder characterized by the presence of endolymphatic hydrops in the inner ear and symptomatology of recurrent and debilitating vertigo attacks, tinnitus, aural fullness, and fluctuating sensorineural hearing loss. Although many therapeutic options for MD have been proposed during years, no consensus has been reached by the scientific community. Read More

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December 2020

[Surgical strategy of minimally invasive cochlear implantation].

Authors:
Y Y Yuan P Dai

Zhonghua Yi Xue Za Zhi 2021 Jan;101(2):87-91

College of Otolaryngology Head and Neck Surgery, Chinese PLA General Hospital, Chinese PLA Medical School/National Clinical Research Center for Otolaryngologic Diseases/State Key Lab of Hearing Science, Ministry of Education/Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing 100853, China.

Cochlear implantation is currently the most effective treatment for patients with severe-to-profound sensorineural hearing loss. How to achieve minimally invasive treatment, preserve the residual hearing, and further improve curative effect and reduce surgical complications is the goal of cochlear implantation practice. This article introduces the minimally invasive cochlear implantation technique in terms of the idea of minimally invasive operation, the advantages of electric acoustic stimulation, the key points of electrode implantation technique, the design of surgical incision, and the precise processing of perioperative period. Read More

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January 2021

Introducing the High-definition 3D exoscope in ear surgery: preliminary analysis of advantages and limits compared with operative microscope.

Eur Arch Otorhinolaryngol 2021 Jan 2. Epub 2021 Jan 2.

Department of Otolaryngology, American Hospital Dubai, Dubai, United Arab Emirates.

Purpose: The aim of this study was to evaluate the potential of 3D exoscope (EX) in selected ear procedures assessing if this new technology could be an improvement in the field of ear surgery.

Methods: A case series of consecutive patients surgically treated with a post-auricular approach using EX was retrospectively compared with a similar previous series treated with operating microscope (OM). Patient demographics, indications for surgery, procedure type, complications, operating room setting time (ORst), operative time, adequacy of visualization, image quality, ergonomics aspects, instrument usability, and technique as a teaching tool were investigated. Read More

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January 2021

Cochlear Implantation.

Dtsch Arztebl Int 2020 Oct;117(41):690-700

Rhino-Laryngology, Head and Neck Surgery, St. Elisabeth Hospital, Ruhr University Bochum; Department of Oto-Rhino-Laryngology, University Hospital Frankfurt; Department of Oto- Rhino-Laryngology, University Hospital Carl Gustav Carus Dresden.

Background: Hearing impairment that is too severe to be adequately treated with conventional hearing aids can lead, in children, to severe developmental disturbances of hearing and language, and, in adults, to communicative and social deprivation. Recent advances in medical device technology and in microsurgical techniques have led to an expansion of the indications for cochlear implantation (CI) for adults with progressive hearing loss in older age, and to a restructuring of the process of care for these patients in Germany.

Methods: This review is based on pertinent publications retrieved by a selective search in PubMed, as well as on the CI guidelines and CI "white book" of the German Society of Otolaryngology and Head and Neck Surgery. Read More

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October 2020

Clinical Utility of Intraoperative Electrocochleography (ECochG) During Cochlear Implantation: A Systematic Review and Quantitative Analysis.

Otol Neurotol 2021 03;42(3):363-371

Department of Otolaryngology-Head and Neck Surgery, Mayo Clinic, Rochester, Minnesota.

Objective: To evaluate the utility of intraoperative electrocochleography (ECochG) as a predictive tool for preservation of residual acoustic hearing after cochlear implantation.

Data Sources: A systematic review employing a multi-database search strategy (Ovid MEDLINE, Embase, EBM Cochrane, and Scopus) was conducted from inception to August 1, 2019. English language studies in humans were included. Read More

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[Hearing without ears].

Ned Tijdschr Geneeskd 2020 11 19;164. Epub 2020 Nov 19.

Leids Universitair Medisch Centrum, afd. Neurochirurgie, Leiden.

An Auditory Brainstem Implant (ABI) is a technique developed for patients with severe hearing loss. The ABI consists of a microphone and speech processor located on the scalp, which is connected to a transmitting and receiving coil and electrode on the brain stem placed in the skull. Eligible for an ABI are adults with cochlea and acoustic nerve damage due to neurofibromatosis type 2, and children with congenital malformation or aplasia, cochlear trauma or cochlear ossification after meningitis. Read More

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November 2020

Robot-assisted Cochlear Implant Electrode Array Insertion in Adults: A Comparative Study With Manual Insertion.

Otol Neurotol 2021 04;42(4):e438-e444

Sorbonne University/AP-HP, GHU Pitié-Salpêtrière, DMU ChIR, Department of Oto-Rhino-Laryngology, Unit of Audiology, Auditory Implants and skull base surgery.

Objective: To describe the first cochlear array insertions using a robot-assisted technique, with different types of straight or precurved electrode arrays, compared with arrays manually inserted into the cochlea.

Study Design: Retrospective review.

Setting: Tertiary otologic center. Read More

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Predictive factors of vertigo following cochlear implantation in adults.

Eur Arch Otorhinolaryngol 2020 Nov 4. Epub 2020 Nov 4.

Department of Otolaryngology, Otology, AP-HP, Sorbonne Université, Hôpital Rothschild, Auditory Implants, 5 rue Santerre, 75012, Paris, France.

Objectives: The occurrence of vertigo after cochlear implantation surgery is one of the most common complications, and often transient. The purpose of this study was to evaluate the occurrence of vertigo after unilateral or bilateral cochlear implantation as well as to identify potential predictive factors.

Materials And Methods: Patients who have undergone cochlear implantation and vestibular assessment pre- and postoperatively were included retrospectively. Read More

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November 2020

Revision cochlear implantation using a double array device in the post-meningitis ossified cochlea.

Int J Pediatr Otorhinolaryngol 2020 Dec 15;139:110446. Epub 2020 Oct 15.

Department of Otolaryngology-Head and Neck Surgery, Shaare Zedek Medical Center Affiliated with the Hebrew University Medical School, Jerusalem, Israel. Electronic address:

Purpose: To describe the surgical technique and outcome in a series of patients who underwent revision cochlear implantation using a double array or split electrode device. All patients developed ossified cochleae due to meningitis and were functioning poorly with the previous implant.

Methods: Four patients between the ages of 4-15 years underwent revision with five double-array cochlear implant devices. Read More

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December 2020

Simpler and effective radiological evaluations for modiolar proximity of a slim modiolar cochlear implant electrode.

Sci Rep 2020 10 19;10(1):17714. Epub 2020 Oct 19.

Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, 300 Gumi-dong, Bundang-gu, Seongnam, 463-707, Republic of Korea.

A new slim modiolar electrode (CI532/632) has been reported to ensure better modiolar proximity than conventional electrodes. Better modiolar proximity has been proposed to yield better electrode discrimination capability and potentially better speech outcomes, necessitating its efficient measurement. Currently, intracochlear positional index (ICPI), the most reliable indicator for evaluating modiolar proximity, has been measured exclusively through 'metal artifact-less' cone beam CT. Read More

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October 2020

'Black Bone' magnetic resonance imaging as a novel technique to aid the pre-operative planning of posterior tympanotomy for cochlear implantation.

Cochlear Implants Int 2021 Jan 7;22(1):35-41. Epub 2020 Oct 7.

School of Biomedical Engineering & Imaging Sciences Clinical Academic Group, King's College London, UK.

'Black Bone' magnetic resonance imaging (BB MRI) is a novel sequence developed as an alternative to computed tomography (CT) for osseous imaging. We explored its potential utilisation in the pre-operative surgical planning of posterior tympanotomy for cochlear implantation through depiction of the mastoid facial nerve (mFN) canal and the posterior canaliculus of the chorda tympani (ChT), thus defining the facial recess. Twenty five adult patients were prospectively imaged with a dedicated BB MRI sequence. Read More

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January 2021

A Novel Surgical Technique for the Management of Cerebrospinal Fluid Gusher Encountered During Cochlear Implantation.

Otol Neurotol 2020 10;41(9):e1177

Department of Otolaryngology-Head and Neck Surgery, University of Texas Southwestern Medical Center, Dallas, Texas.

: Cerebrospinal fluid (CSF) gusher encountered during cochlear implantation are most commonly encountered in the setting of an inner ear abnormality. Repair of the gusher is essential to prevent CSF egress postoperatively and to decrease the risk of meningitis. Various methods to repair a CSF gusher have been described, including tight packing of the cochleostomy with fascia, lumbar drainage, and Eustachian tube packing with ear canal overclosure. Read More

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October 2020

Automated detection of electrically evoked stapedius reflexes (eSR) during cochlear implantation.

Eur Arch Otorhinolaryngol 2021 Jun 3;278(6):1773-1779. Epub 2020 Aug 3.

Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany.

Introduction: In cochlear implantation, objective fitting methods are needed to optimize audiological results in small children or patients with poor compliance. Intraoperatively measured electrically evoked stapedius reflexes (eSR) can be used as a marker for the patient's discomfort level. The aim of this study was to develop and evaluate an automated detection method for eSR and to compare it to the detection rate of the surgeon and independent observers. Read More

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Subtotal Petrosectomy in Cochlear Implant Surgery: Our Experience.

Indian J Otolaryngol Head Neck Surg 2020 Sep 12;72(3):320-325. Epub 2020 Feb 12.

Madras ENT Research Foundation (Pvt) Ltd, 1, First Cross Street, Off Second Main Road, RA Puram, Chennai, Tamil Nadu 600028 India.

Aims: Subtotal petrosectomy (SP) with cochlear implant (CI) is required in certain specific situations in the management of patients who are candidates for cochlear implants. To study and review the indications, surgical issues, and complications of this procedure.

Materials And Methods: Retrospective review of all patients who underwent subtotal petrosectomy with cochlear implant during the period January 2010-December 2016 at a tertiary care and referral centre. Read More

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September 2020

An Improved Technique of Subtotal Cochleoectomy for Removal of Intracochlear Schwannoma and Single-stage Cochlear Implantation.

Authors:
Stefan K Plontke

Otol Neurotol 2020 08;41(7):e891

Department of Otorhinolaryngology, Head and Neck Surgery, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.

: Cochlear implantation in patients with intracochlear schwannomas has been reported anecdotally in case reports or small case series . The applied techniques have varied considerably ranging from extended cochleostomy , "push-through" and "pull-through" techniques , partial and subtotal cochleoectomy to cochlear implant insertion through the tumor (5). We here illustrate (see Video, Supplemental Digital Content 1, http://links. Read More

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Evaluation of Insertion Forces and Cochlea Trauma Following Robotics-Assisted Cochlear Implant Electrode Array Insertion.

Otol Neurotol 2020 06;41(5):631-638

Department of Otolaryngology-Head & Neck Surgery, University of Iowa Hospitals and Clinics.

Hypothesis: The objective was to evaluate the effect of cochlear implant (CI) insertion technique on electrode insertion forces and intracochlear trauma. We hypothesize that robotics-assisted insertions will reduce insertion forces and intracochlear trauma compared with manual insertions.

Background: Variability in CI outcomes exists across patients, implant centers, surgeons, and electrode types. Read More

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Auditory performance of post-lingually deafened adult cochlear implant recipients using electrode deactivation based on postoperative cone beam CT images.

Eur Arch Otorhinolaryngol 2021 Apr 25;278(4):977-986. Epub 2020 Jun 25.

Postgraduate Program at the Department of Ophthalmology, Otorhinolaryngology, Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Av Bandeirantes, 3900, Ribeirão Preto, São Paulo, Brazil.

Purpose: The use of image processing techniques to estimate the position of intra-cochlear electrodes has enabled the creation of personalized maps to meet the individual stimulation needs of cochlear implant (CI) recipients. The aim of this study was to evaluate a novel technique of electrode deactivation based on postoperative cone beam computed tomography (CBCT) images in post-lingually deafened adult CI recipients.

Methods: Based on postoperative CBCT images, the positioning of the electrodes was estimated in relation to the modiolus in 14 ears of 13 post-lingually deafened adult CI recipients. Read More

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Hearing Preservation Outcomes With Standard Length Electrodes in Adult Cochlear Implantation and the Uptake of Electroacoustic Stimulation.

Otol Neurotol 2020 09;41(8):1060-1065

UCLH/UCL Auditory Implant Programme, Royal National Throat Nose & Ear Hospital, London, UK.

Background: Cochlear implantation with preservation of residual low-frequency hearing enables patients to utilize acoustic and electrical stimulation. It is widely accepted that preservation of residual low-frequency hearing is beneficial in both background noise and for music appreciation. The extent to which patients may benefit is not fully understood, but the importance of these concepts is reflected in electrode design developments and also refinement of surgical technique. Read More

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September 2020

Cochlear Implant Surgery: Endomeatal Approach versus Posterior Tympanotomy.

Int J Environ Res Public Health 2020 06 12;17(12). Epub 2020 Jun 12.

Department of Adult and Development Age Human Pathology "Gaetano Barresi", Unit of Otorhinolaryngology, University of Messina, 98125 Messina, Italy.

The aim of the present study was to compare the posterior tympanotomy (PT) technique to the endomeatal approach. The endomeatal approach (EMA) for Cochlear Implant (CI) surgery was performed on 98 patients with procident lateral sinus or a small mastoid cavity, on 103 ears (Group A). Conventional mastoidectomy and PT was performed on the other 104 patients, on 107 ears (Group B). Read More

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Evaluation of Subtotal Petrosectomy Technique in Difficult Cases of Cochlear Implantation.

Audiol Neurootol 2020 29;25(6):323-335. Epub 2020 May 29.

Gruppo Otologico, Quaternary Referral Center for Otology, Neurotology and Skull Base Surgery, Piacenza, Italy.

Objectives: To assess the validity of the subtotal petrosectomy (STP) technique in problematic cases of cochlear implant (CI) surgery, and review indications, outcomes, and related controversies.

Study Design: This is a retrospective review of data from a private quaternary referral center of otology and skull base surgery.

Patients And Methods: A review of patients who underwent CI with STP (STP-CI) as the leading approach was performed. Read More

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