Publications by authors named "C A Buchman"

Purpose: In cochlear implantation (CI) surgery, there are a wide variety of intraoperative tests available. However, no clear guide exists on which tests must be performed as the minimum intraoperative testing battery. Toward this end, we studied the usage patterns, recommendations, and attitudes of practitioners toward intraoperative testing.

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Article Synopsis
  • The study aimed to evaluate cochlear implant performance after patients underwent reimplantation using a different manufacturer's device.
  • A total of 29 patients were analyzed, showing a drop in average CNC speech recognition scores before reimplantation but a recovery to comparable levels following the procedure.
  • The findings indicate that reimplantation with a new device can lead to similar speech recognition performance as the original device, without significant statistical differences in outcomes.
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Article Synopsis
  • - The study aims to map the tonotopy (frequency organization) of the human cochlea in vivo using cochlear implant electrodes, addressing challenges of past research that relied on cadaver and animal models.
  • - Fifty patients with hearing loss underwent cochlear implantation, where their responses to sound stimuli were recorded to analyze how sound intensity and an artificial "third window" influence the tonotopic map.
  • - Results showed notable deviations from the expected Greenwood model in the frequency-position function, especially at higher sound levels, indicating complexities in how the cochlea processes sound intensity.
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Objective: To validate electrocochleography (ECochG) between an auditory evoked potential (AEP) machine and an established cochlear implant (CI) manufacturer ECochG system.

Methods: Intraoperative validation study at a tertiary referral center. Patients included adults and children undergoing cochlear implantation.

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Objective: To describe the collection methods for perilymph fluid biopsy during cochlear implantation, detect levels of amyloid β 42 and 40 (Aβ and Aβ), and total tau (tTau) analytes with a high-precision assay, to compare these levels with patient age and Montreal Cognitive Assessment (MoCA) scores, and explore potential mechanisms and relationships with otic pathology.

Study Design: Prospective study.

Setting: Tertiary referral center.

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