AUDITORY VERBAL OUTCOME IN PATIENTS WITH MONDINI DEFORMITY FOLLOWING COCHLEAR IMPLANTATION

Abstract

Objective:

To assess the auditory verbal outcomes after one year of habilitation based on Categories of Auditory Performance (CAP) and Speech Intelligibility Rating (SIR) scores in Mondini deformity following Cochlear Implantation (CI).

Material and methods:

This is a retrospective comparative analysis of 13 implantees with Mondini deformity (Group A) and 13 implantees with normal cochlea (Group B) available at Department of Implantation Otology, Madras ENT Research Foundation, Chennai, India from November 2005 to December 2012. One year post habilitation auditory verbal outcomes of the selected patients were collected from habilitation centre run by the same institute. Data was analyzed using the Student t test.

Results:

The mean CAP score was 5 ± 1.35 (range 2-7) in group A and 5.23 ± 1.25 (range 5-6) in group B which was statistically not significant (p=0.56). Similarly the SIR scores varied from 1 to 5 in both the groups. The mean of SIR score was 3.08 ± 1.25 in group A and 3.54 ± 1.26 in group B. This was also statistically not significant (p=0.36).

Conclusion:

The auditory verbal outcome for the patients with Mondini deformity is similar to those with normal cochlea following CI. Hence CI is successful in patients with Mondini deformity, although a higher degree of variability is noted among these candidates.

Keywords: CAP score, Cochlear Implantation, Mondini deformity, SIR score