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- Title
The Esteem Fully Implantable AMEI for Severe-Profound SNHL.
- Authors
Barbara, Maurizio; Monini, Simonetta; Filippi, Chiara; Covelli, Edoardo
- Abstract
The Esteem (Envoymedical, St. Paul, USA), a totally implantable, active middle ear implant, indicated for the rehabilitation of sensorineural hearing loss of moderate-to-severe degree, has been applied at our Implanting Center based in Rome at the University Hospital Sant'Andrea, in 46 subjects. Apart from the degree of hearing loss, the candidature has also relied upon CT scan data for the evaluation of the space in the mastoid cavity, allowing to accommodate the 2 piezoelectric transducers. The surgical procedure is quite complex and usually requires not less than 4 hours under general anesthesia. The auditory outcome, assessed by the pure tone and speech audiometry with headphones, has been followed up annually with an interval ranging from 4 years to 12 years. From the total of 46 subjects who received the Esteem AMEI, 9 were lost to follow-up (living abroad or followed by other Centers), and 5 have been explanted so that 32 subjects have been under study. In 25 subjects who pre-operatively showed a symmetric hearing loss, the control of the contralateral ear, not operated ear, has allowed considering eventual differences in BC deterioration. The mean preoperative BC threshold level in the implanted ear was 56.1 dB (min 38, max 71), while at the last follow-up was 74.7, with a difference of 18.5 dB. In the contralateral ear, the mean preoperative BC threshold level was 56.6 and 62.55 at the last follow-up, with a difference of 5 dB. In terms of hearing gain, a mean improvement of 16.2 dBHL was found at the last follow-up, including those subjects with BC threshold deterioration, regardless of the follow-up timing. The present study demonstrates that the efficiency of the Esteem AMEI was still beneficial after several years of use even in those subjects whose BC threshold was deteriorated.
- Subjects
SAINT Paul (Minn.); MIDDLE ear; RESPECT; SENSORINEURAL hearing loss; PIEZOELECTRIC transducers; SPEECH audiometry; CONDUCTIVE hearing loss
- Publication
ENT Updates, 2021, Vol 11, p14
- ISSN
2149-7109
- Publication type
Abstract
- DOI
10.5152/entupdates.2021.001