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Benefits of Cochlear Implantation and Hearing Preservation for Children With Preoperative Functional Hearing: A Prospective Clinical Trial.
Ear Hear
January 2025
Department of Otolaryngology/Head & Neck Surgery, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA.
Objectives: This study was designed to (1) compare preactivation and postactivation performance with a cochlear implant for children with functional preoperative low-frequency hearing, (2) compare outcomes of electric-acoustic stimulation (EAS) versus electric-only stimulation (ES) for children with versus without hearing preservation to understand the benefits of low-frequency acoustic cues, and (3) to investigate the relationship between postoperative acoustic hearing thresholds and performance.
Design: This was a prospective, 12-month between-subjects trial including 24 pediatric cochlear implant recipients with preoperative low-frequency functional hearing. Participant ages ranged from 5 to 17 years old.
Auditory Brainstem Response (ABR) Recording of Simultaneous Electric-Acoustic Stimulation between Round Window Membrane and Basal Part of Cochlear Bone in guinea Pigs.
Otol Neurotol
January 2025
Department of Otolaryngology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.
Hypothesis: Extracochlear electric-acoustic stimulation (EAS) between the round window membrane and the basal part of the cochlear bone exhibits distinct auditory brainstem response (ABR) characteristics.
Background: The use of EAS in individuals with residual hearing is becoming increasingly common in clinical settings. Ongoing research has explored the characteristics of EAS-induced responses in hearing cochleae.
Effects of F1-F2 Frequency Spacing on Spectral Integration in Combined Electric and Acoustic Stimulation.
J Speech Lang Hear Res
January 2025
Department of Communication Sciences and Disorders, Baylor University, Waco, TX.
Purpose: The aim of this study was to measure the effects of frequency spacing (i.e., F2 minus F1) on spectral integration for vowel perception in simulated bilateral electric-acoustic stimulation (BiEAS), electric-acoustic stimulation (EAS), and bimodal hearing.
View Article and Find Full Text PDFHybrid Cochlear Implant Outcomes and Improving Outcomes With Electric-Acoustic Stimulation.
Otol Neurotol
December 2024
Vanderbilt University Medical Center, Nashville, Tennessee.
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.
Enhanced Cochlear Coverage and Hearing Preservation in High-Frequency Hearing Loss via Electric Acoustic Stimulation with Longer Electrode.
J Vis Exp
October 2024
Department of Hearing Implant Sciences, Shinshu University School of Medicine;
Electric-acoustic stimulation (EAS) is a promising treatment to improve hearing ability in patients with high-frequency hearing loss (HL). In EAS surgeries, shorter electrodes have been preferred to avoid the presence of an electrode covering the residual hearing region. However, our earlier studies showed that EAS with longer electrodes (28 mm) could preserve acoustic hearing.
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