Vibrant Soundbridge implantation via the third window in two Chinese patients with severe bilateral congenital aural atresia.
Acta Otolaryngol
; 134(1): 1-6, 2014 Jan.
Article
em En
| MEDLINE
| ID: mdl-24102227
ABSTRACT
CONCLUSION:
In patients with undeveloped vestibular/oval windows and inaccessible round windows, Vibrant Soundbridge (VSB) implantation performed by placing the transducer into a reconstructed window on the inner tympanum wall demonstrated significant improvement in hearing and verbal communication ability.OBJECTIVE:
To report our surgical experience with new placement of the VSB in pediatric patients with undeveloped vestibular windows, inaccessible round windows, and severe bilateral congenital aural atresia (CAA).METHODS:
In two patients with bilateral CAA selected for middle ear implantation, CT scans revealed severe middle ear malformation including inaccessible round windows, absence of vestibular/oval windows, and abnormal facial nerve anatomy. The transducer of the VSB was implanted into a 'window' drilled at the inner tympanum wall in both patients.RESULTS:
The surgery was successful. Pure-tone air conduction thresholds across the frequencies of 0.25-8 Hz were improved by 35 dB (preoperation, 69.2 dB; postactivation, 34 dB) in patient 1 and 46.6 dB (preoperation, 75.8 dB; postactivation, 24.2 dB) in patient 2. Normal hearing thresholds were achieved in the range of 1-8 kHz in both patients. A sentence recognition rate of up to 100% (65 dB SPL in a quiet room) was attained by both patients after surgery and VSB activation at 3 months postoperatively.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Anormalidades Congênitas
/
Prótese Ossicular
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Substituição Ossicular
/
Orelha
Limite:
Adolescent
/
Child
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Female
/
Humans
/
Male
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article