Publications by authors named "Mariann Gjervik Heldahl"
Introduction: The main objective of the study was to validate the Norwegian translation of the Speech, Spatial and Qualities of Hearing Scale (SSQ) and investigate the SSQ disability profiles in a cochlear implant (CI) user population.
Methods: The study involved 152 adult CI users. The mean age at implantation was 55 (standard deviation [SD] = 16), and the mean CI experience was 5 years (SD = 4.
Background: The first surgeries with CI532 showed an effect of the proximity of the electrode to the modiolus on the Evoked Compound Action Potentials (ECAPs).
Objectives: Objectives of the study were to investigate the effect of the "pullback" procedure on intraoperative ECAP responses in three different electrode array positions and additionally to compare behavioral thresholds with the thresholds obtained in a group of patients using the standard insertion. The hypothesis of this study is that pullback will cause lower ECAPs and behavioral thresholds.
Cochlear implants in eight children with Down Syndrome - Auditory performance and challenges in assessment.
Int J Pediatr Otorhinolaryngol
November 2019
Objectives: A small proportion of children with Down Syndrome (DS) have severe to profound hearing loss and may potentially benefit from a cochlear implant (CI). Evidence on outcomes in DS is very limited, and there is a need for further investigation to provide a basis for clinical evaluation of candidates and outcomes. This study aims to explore outcomes of CI in children with DS in Norway.
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- - The study aimed to evaluate how well participants with second cochlear implants (CI2) perceive speech compared to those with their first (CI1), focusing on 160 prelingually deaf children who received their first implant as kids, and exploring factors that influence CI2 outcomes.
- - Participants were divided into two groups based on their language acquisition before receiving their implants and were monitored for at least five years after receiving their CI2, using various speech perception tests.
- - Results indicated that participants generally performed better with CI1, with about a 28% advantage in group A and 20% in group B, while the additional benefits from CI2 were small—3% for group A and 7% for group B
Objectives: The aims of this study were to create 12 ten-sentence lists for the Norwegian Hearing in Noise Test for children, and to use these lists to collect speech reception thresholds (SRTs) in quiet and in noise to assess speech perception in normal hearing children 5 to 13 years of age, to establish developmental trends, and to compare the results with those of adults. Data were collected in an anechoic chamber and in an audiometric test room, and the effect of slight room reverberation was estimated.
Design: The Norwegian Hearing in Noise Test for children was formed from a subset of the adult sentences.