Impingement of the carotid canal on the basal turn of the cochlea as pertaining to cochlear implantation.
Otol Neurotol
; 35(10): 1746-51, 2014 Dec.
Article
en En
| MEDLINE
| ID: mdl-24945587
ABSTRACT
HYPOTHESIS:
To evaluate the relation of the basal turn of the cochlea with the carotid canal as pertaining to cochlear implantation.BACKGROUND:
Cochlear implantation is an established mode of treatment for patients with bilateral profound sensorineural hearing loss. An intricate knowledge of both the typical and atypical topography of the cochlea with the carotid canal is essential for safely conducting cochlear implantation.DESIGN:
Fifty-eight cadaveric temporal bones were microdissected to expose the medial wall of the middle ear. To open the basal turn of the cochlea, the promontory was drilled. The carotid canal was unroofed to reveal the internal carotid artery. The minimum distance between the basal turn of the cochlea and the vertical part of the carotid canal was measured.RESULTS:
The minimum distance between the basal turn of the cochlea and the carotid canal ranged from 0 to 3.9 mm (mean ± SD, 1.3 ± 0.8 mm). The carotid canal was abutting the basal turn of the cochlea in three cases, and impingement of the carotid canal on the anterior cochlear wall was found in five (8.6%) cases.CONCLUSION:
Preoperative knowledge of findings like impingement (8.6%) and abutment (5.2%) of the carotid canal on the basal turn of the cochlea is of immense importance in cochlear implantation, which may otherwise lead to disastrous consequences during surgery.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Hueso Temporal
/
Cóclea
/
Implantación Coclear
/
Pérdida Auditiva Bilateral
/
Pérdida Auditiva Sensorineural
Límite:
Adolescent
/
Adult
/
Aged
/
Child
/
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
/
Middle aged
Idioma:
En
Revista:
Otol Neurotol
Asunto de la revista:
NEUROLOGIA
/
OTORRINOLARINGOLOGIA
Año:
2014
Tipo del documento:
Article
País de afiliación:
India