Study on 2,747 cases of inner ear malformation for its classification in patient with sensorineural hearing loss.
- Author:
Baochun SUN
;
Pu DAI
;
Chengyong ZHOU
- Publication Type:Journal Article
- MeSH:
China;
Cochlea;
Ear, Inner;
abnormalities;
Hearing Loss, Sensorineural;
etiology;
Humans;
Outpatients;
Retrospective Studies;
Semicircular Canals;
Temporal Bone;
Tomography, X-Ray Computed;
Vestibular Aqueduct;
Vestibule, Labyrinth
- From:
Journal of Clinical Otorhinolaryngology Head and Neck Surgery
2015;29(1):45-47
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:Analyze the data of the patients with sensorineural hearing loss in China and study the classification and incidence of inner ear malformationsby the high-resolution computed tomography.
METHOD:The investigation took a retrospective review of CT findings relating to the 2,747 cases of outpatients. The inner ear malformations diagnosed by CT were classified according to the methods proposed by Sennaroglu.
RESULT:(1)843 cases of inner ear malformations were found in 2747 cases of patients with sensorineural hearing loss by CT examination. The incidence of inner ear malformation was 30.69%(843/2747). (2) The epidemiological information of 843 cases of inner ear malformation according to Sennaroglu's classification was as follows: cochlea was 52. 31%(441/843), simple vestibular aqueduct was 40.33%(340/843), simple vestibular/ semicircular canal/internal auditory canal were 7. 35%(62/843) of the group. (3) 441 cases of cochlea malformation were consisted of these types of malformation: Michel deformity was 1.13% (5/441), cochlear aplasia was 1. 81% (8/441), common cavity deformity was 3. 17% (14/441), incomplete partition type I was 8. 62% (38/441), cochlea hypoplasia was 9. 07% (40/441) and incomplete partition type II was 76. 19% (336/441) of the group.
CONCLUSION:The results suggested that 30. 69% cases of inner ear malformation can be found in patients with sensorineural hearing loss, which is more higher than reported by the high-resolution computed tomography. Sennaroglu's classification is instructively significant in investigating the status of inner ear malformations.
