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Hearing Disorders: HELP
Articles from Ospedale di Circolo
Based on 2 articles published since 2010

These are the 2 published articles about Hearing Disorders that originated from Ospedale di Circolo during 2010-2020.
+ Citations + Abstracts
1 Article Active inhibition of the first over the second ear implanted sequentially. 2016

Burdo, S / Giuliani, A / Dalla Costa, L. ·ICP Milano and Audiovestibology Center, Varese, Italy. Electronic address: sanburdo@tin.it. · U.O.D Audiovestibologia Ospedale di Circolo, Varese, Italy. · ICP Milano and Audiovestibology Center, Varese, Italy. ·Eur Ann Otorhinolaryngol Head Neck Dis · Pubmed #27262350.

ABSTRACT: OBJECTIVE: To identify the influence of the first implanted ear on the performance of the delayed sequentially implanted ear in pediatric patients. STUDY DESIGN: Retrospective case series review. SETTING: Outpatient Cochlear Implant (CI) center. PATIENTS: Congenitally deaf children who underwent unilateral implant at various ages followed by sequential implant of the contralateral ear with various delays were enrolled in the study. Children were divided into two groups based on the retention of the first implant or its removal, creating a sequential unilateral user group (USG) and a sequential bilateral user group (BSG). Both groups reflect differing durations of auditory deprivation in each ear, being relatively longer for the USG group for each ear than for the BSG group. INTERVENTION: Rehabilitative. MAIN OUTCOME MEASURES: All patients underwent periodic speech recognition testing for two years after the second surgery. The results for each implanted ear in both groups were evaluated and an index score representing the Difference Between the Ears, (DBE), was calculated. RESULTS: A statistically significant difference results was obtained between the groups. Both groups reached interaural equivalence (i.e. DBE=0%), after two years post-sequential implant. The USG patients achieved interaural equivalence at a faster rate than the BSG patients with 85% USG subjects demonstrating it at 6months compared to the majority of BSG patients demonstrating equivalence at one-year post-sequential implant. CONCLUSIONS: The performance of the sequentially implanted ear depends to an extent on a negative influence, which could be considered as a type of inhibition, of the first implanted ear over the second ear. It appears that the role of the unilateral auditory deprivation is not the primary influencing factor. These findings have driven us clinically to redefine some important considerations for rehabilitation management of the deaf children in the cases of delayed sequential implant.

2 Article Vestibular function after cochlear implant surgery. 2016

Meli, Annalisa / Aud, Bernadette Musumeci / Aud, Simona Tognocchi / Aud, Raffaella Gaggi / Cristofari, Eliana. ·a ENT Audio-Vestibology Unit, Ospedale di Circolo e Fondazione MACCHI , Varese , Italy. ·Cochlear Implants Int · Pubmed #26146013.

ABSTRACT: OBJECTIVE: The aim of this study was to analyze vestibular function in cochlear implant (CI) patients for iatrogenic damage to vestibular function. METHODS: Prospective clinical study. Tertiary care audiological center. Twenty-five subjects receiving surgery for cochlear implantation during 2012 and 2013 were analyzed. Both vestibulo-ocular and vestibulo-spinal responses before and 2 months after CI surgery were evaluated using several tests: analysis of spontaneous nystagmus, head shaking test (HST), and head impulse test recorded by videooculography; caloric stimulation at 44° and 30° in both ears; cervical evoked myogenic potentials and static stabilometry. Residual cochlear function was tested by air-conduction pure-tone audiometry. RESULTS: Our tests showed damage to vestibular receptors after CI surgery in 12% of the patients; in particular, horizontal semicircular canal function and saccular function had lower responses after surgery. Audiometric results showed poorer thresholds after CI surgery. The static stabilometry results indicate good vestibulo-spinal responses and patients did not report disequilibrium nor postural deficit. CONCLUSION: All data suggest an efficient vestibular compensation mechanism in CI patients.