A prospective cohort study of cochlear implantation as a treatment for tinnitus in post-lingually deafened individuals.

Background: Cochlear implants have helped over one million individuals restore functional hearing globally, but their clinical utility in suppressing tinnitus has not been firmly established.

Methods: In a decade-long study, we examined longitudinal effects of cochlear implants on tinnitus in 323 post-lingually deafened individuals including 211 with pre-existing tinnitus and 112 without tinnitus. The primary endpoints were tinnitus loudness and tinnitus handicap inventory.

Electrical Bioimpedance-Based Monitoring of Intracochlear Tissue Changes After Cochlear Implantation.

Background: This study examined electrical bioimpedance as a biomarker for intracochlear tissue changes after cochlear implant surgery, comparing monopolar, three-point, and four-point impedance measurements over time and evaluating different measurement systems and approaches.

Methods: Impedance measurements were obtained from 21 participants during surgery and at four postoperative stages. Monopolar impedances were recorded using the Bionic Ear Data Collection System (BEDCS) and the Active Insertion Monitoring (AIM) system.

Comparison of Performance for Cochlear-Implant Listeners Using Audio Processing Strategies Based on Short-Time Fast Fourier Transform or Spectral Feature Extraction.

Objectives: We compared sound quality and performance for a conventional cochlear-implant (CI) audio processing strategy based on short-time fast-Fourier transform (Crystalis) and an experimental strategy based on spectral feature extraction (SFE). In the latter, the more salient spectral features (acoustic events) were extracted and mapped into the CI stimulation electrodes. We hypothesized that (1) SFE would be superior to Crystalis because it can encode acoustic spectral features without the constraints imposed by the short-time fast-Fourier transform bin width, and (2) the potential benefit of SFE would be greater for CI users who have less neural cross-channel interactions.

The Relationship Between the Electrically Evoked Stapedius Reflex Threshold and Stimulus Burst Duration in Pediatric Cochlear Implant Users: Preliminary Data.

Introduction: The electrically evoked stapedius reflex threshold (eSRT) is an objective measure that helps to fit cochlear implants (CIs). The primary aim of this study was to investigate the relationship between different burst durations to elicit eSRT in pediatric CI users.

Materials And Methods: Different stimuli burst durations (100-500 ms) were applied to observe the effect in the reflex determination in 11 pediatric CI users.

Intraoperative Electrical Stapedius Reflex Testing to Monitor Cochlear Nerve Integrity during Simultaneous Vestibular Schwannoma Resection and Cochlear Implantation.

Objective: To compare the utility of intraoperative electrically evoked auditory brainstem response (eABR) and electrically evoked stapedial reflex testing (eSRT) for cochlear nerve integrity monitoring during simultaneous translabyrinthine resection of vestibular schwannoma (VS) and cochlear implantation.

Study Design: Historical cohort study.

Setting: Tertiary academic referral center.

Round Window Accessibility Prediction in Cochlear Implant Surgery.

Background: Clear identification of the round window (RW) through the facial recess is a key surgical step for successful cochlear implantation (CI) surgery, which may be very challenging in some cases. Objective is to predict round window (RW) accessibility during CI surgery using high-resolution computed tomography (HRCT).

Methods: We retrospectively reviewed preoperative HRCT scans of 142 patients who underwent CI surgery via the standard posterior tympanotomy approach at our ENT Head and Neck Surgery department.

Patient Preferences in Cochlear Implant Manufacturer Selection.

Objective: To assess the factors that drive a patient's selection of cochlear implant (CI) manufacturer.

Study Design: Prospective survey study.

Setting: Tertiary referral center.

Comparing remote programming of cochlear implants using two methods: portable laptop and remote hosted site.

Objectives: Compare two remote programming methods as a clinical service for user satisfaction, ease of use, preparation time and accessibility.

Method: Method 1 (Portable Laptop): A 'Programming Kit' including laptop was shipped to cochlear implant users' homes ( = 20). The audiologist at the implant center used remote desktop control of this laptop to adjust subjects' speech processors.

Effect of Cochlear Implantation on Air Conduction and Bone Conduction Elicited Vestibular Evoked Myogenic Potentials-A Scoping Review.

Cochlear implantation (CI) is an effective intervention for individuals with severe to profound hearing loss; however, it may impact vestibular function due to its proximity to related anatomical structures. Vestibular evoked myogenic potentials (VEMPs) assess the function of the saccule and utricle, critical components of the vestibular system. This review examines CI's impact on air conduction (AC) and bone conduction (BC) VEMP responses.

Anaesthetic management of an infant with MEGD(H)EL syndrome undergoing cochlear implant.

Background: The syndrome has these features: 3-methylglutaconic aciduria (MEG), deafness(D), encephalopathy (E), Leigh-like syndrome (L). This disorder is caused by biallelic mutations in serine active site-containing protein 1 (SERAC1) gene. When these patients experience hepatopathy (H) in addition to the above manifestations, the syndrome is referred to as MEGD(H)EL.

Scala vestibuli cochlear implantation: exploring feasibility and outcomes- a systematic review.

Purpose: While the scala tympani (ST) is usually the preferred site for electrode insertion in cochlear implantation, anatomical variations and cochlear ossification may require scala vestibuli (SV) insertion. This systematic review evaluates the feasibility, techniques, and clinical outcomes of SV insertions compared to ST insertions, focusing on their impact on auditory performance.

Methods: A systematic review was conducted using PRISMA guidelines.

Cochlear Implantation: Predicting Round Window Niche Visibility Using One Measurement in High-Resolution Temporal Bone Computed Tomography.

Background: To evaluate the accuracy of a single measurement in temporal bone computed tomography in predicting the round window niche (RWN) visibility during cochlear implantation.

Methods: A prospective study was conducted on 148 patients (165 ears) who had a cochlear implant (CI) from January 2010 to December 2018 at a tertiary CI center. The measurement was done for the angle of the basal turn of the cochlea (ABTC), which we defined as the angle formed by the cochlear basal turn and the cranium mid-sagittal plane, by 2 readers blindly from the axial images of computed tomography.

Temporal cue based categorization and speech perception in noise among pediatric cochlear implant users.

Objectives: Voice onset time (VOT) has been identified as a potential temporal cue for predicting children's performance in speech-in-noise tasks, yet the relationship between these two factors has never been explored among children using CI. Hence, the present study aimed to explore the performance of children using CI on temporal cue-based syllable categorization test and speech perception in noise and examine the relationship between the two.

Methods: Temporal cue-based syllable categorization test was developed with the manipulation of /ba/ sound in 10 steps continuum with VOT varied between -74 ms to 26 ms.

Defining the ideal trajectory into the inner ear in image-guided cochlear implant surgery.

The aim of robot-assisted cochlear implant surgery (RACIS) is to access the inner ear with minimal trauma. High-resolution imaging, empowered with a highly accurate navigation system can enable the planning of a direct keyhole drilling trajectory toward the inner ear. The time has come to (re)define the ideal trajectory into the inner ear with robot-assisted tools that can drill with the highest accuracy.

X-ray guided anatomy-based fitting: The validity of OTOPLAN.

Background: Anatomy-based fitting (ABF) for cochlear implant users is a new era that seeks improved outcomes. Recently, different imaging modalities, such as plain X-rays, have been proposed to build the ABF as an alternative to the computed tomography (CT) scan. This study aimed to assess the feasibility and validity of OTOPLAN® software in building ABF using plain X-ray imaging.

Estimation of outer-wall length in optimizing cochlear implantation in malformed inner ears.

Estimation of cochlear length is gaining attention in the field of cochlear implants (CIs), mainly for selecting of CI electrode lengths. The currently available tools to estimate the cochlear duct length (CDL) are only valid for normal inner anatomy. However, inner ear malformation (IEM) types are associated with different degrees of cystic apices, limiting the application of CDL equations of normal anatomy inner ear.

Sensitivity and Costs of Intraoperative Trans-Impedance Matrix Recordings, Spread of Excitation Functions, and X-ray Imaging in Detecting Cochlear Implant Tip Foldovers.

Objective: Evaluate the sensitivity and financial costs of Trans-Impedance Matrix recordings, Spread of Excitation functions, and x-rays in detecting cochlear implant tip foldovers.

Setting: Tertiary academic medical center.

Patients: 113 ears of 108 patients.

Hybrid Cochlear Implant Outcomes and Improving Outcomes With Electric-Acoustic Stimulation.

Introduction: Electric-acoustic stimulation (EAS) provides cochlear implant (CI) recipients with preserved low-frequency acoustic hearing in the implanted ear affording auditory cues not reliably transmitted by the CI including fundamental frequency, temporal fine structure, and interaural time differences (ITDs). A prospective US multicenter clinical trial was conducted examining the safety and effectiveness of a hybrid CI for delivering EAS.

Materials And Methods: Fifty-two adults (mean age 59.

Screening for Developmental Delays in Pediatric Cochlea Implant Candidates and Recipients.

Objective: Conduct a pilot clinical improvement project to effectively screen children with hearing loss for developmental delays. Children with hearing loss and cochlear implants (CIs) are at risk for additional developmental delays; however, screening to aid in early identification and referral for developmental delays is not routinely performed at CI centers. It is important to consider all aspects of child development to maximize CI outcomes and access to language.