Case Report
Year: 2019 | Month: June | Volume: 9 | Issue: 6 | Pages: 406-411
Usefulness of Extended Audiological Test Battery for Identifying Unsafe Type of CSOM in A Non Hospital Audiology Set Ups- Single Case Study on Secondary Acquired Cholesteatoma
Prajna Bhat. J1, Shivali Appaiah. K2, Suresh Thontadarya3
1Visiting Faculty, Samvaad Institute of Speech and Hearing, Bangalore;
2PhD Candidate, Mcquire University, Australia
3Associate Professor and Research Coordinator, Dr S. R. Chandrashekhar Institute of Speech and Hearing, Bangalore University, Bangalore, India;
Corresponding Author: Prajna Bhat. J
ABSTRACT
Background: The present paper highlights a single case study where inclusion of additional Immittance procedures such as Multifrequency tympanometry (MFT), Multicomponent (MCT) tympanometry along with single frequency tympanometry, reflexometry and other tests in a test battery approach helped in identifying a cholesteatoma / CSOM during our regular outpatient audiological procedures of a teaching college of speech and hearing.
Method: Pure tone audiometry, Single probe tone frequency tympanometry, MFT, MCT, Reflexometry and Bone Conduction Auditory brainstem response (BC-ABR) were carried out.
Result and conclusion: The results of Pure-tone audiometry test indicated Normal hearing sensitivity in left ear and a Profound mixed hearing loss in right ear. The single probe tone tympanometry revealed an ‘As’ type and an ‘A’ type tympanogram in the right and left ear respectively. MFT revealed a mass dominated pathology in the right ear and a normal resonance in the left ear which in turn correlated with the results of MCT. The threshold of right BC- ABR was obtained at 40dBnHL, which indicated cochlear hearing to be affected to a smaller degree as to be expected in advanced CSOM conditions. Compilation of results of test battery assists the Audiologist to draw the attention of the treating ENT specialist towards appropriate diagnosis, designing a suitable intervention plan, effective counselling and appropriate referrals.
Key words: Cholesteatoma, MFT, MCT, BC-ABR