Cochlear implant surgery has become a very common medical procedure worldwide. The operation is used as a corrective procedure for severe to profound sensorineural hearing loss in patients. The decision for the medical procedure is taken by parents or legal guardians for children and by the adults themselves.
The cochlear implant surgery is a 60 – 75 minutes procedure and it is carried out in the outpatient department. Before the medical procedure is conducted by a surgeon, a general medical history of the patient is drawn. This medical history also includes the issues leading to hearing loss and the ultimate decision to undertake the surgical corrective measure.
A complete otolaryngologic and neuro-otologic test are carried out to ascertain the different issues with your ear first. A typical test would be conducted by an audiologist who will measure the performance of your ear with or without your hearing aid. Sometimes OAE (optoacoustic emission) testing reveals the need to undertake trials with a stronger hearing aid than being currently used by you.
In case of children, pure-tone audiometry and auditory brain stem response (ABR) testing is done often. A CT scan is used to obtain the status of the cochlea in order to identify a common cavity, mondini dysplasia (enlarged vestibular aqueduct) or a patent (nonossified) cochlea.
In several circumstances, an MRI is conducted on patient to determine the presence of the eighth nerve or severe ossification. Then a psychological examination is conducted on the patient to see if the patient can cope with the surgical procedure of cochlear implant.
Once clearance from other tests is given, a physical test is conducted to prepare the patient for cochlear implant. After the cochlear implant procedure is conducted the patient may feel the following:-
- pressure or discomfort over his (or her) implanted ear
- dizziness and nausea
- temporary disorientation or confusion
- a sore throat for a while from the breathing tube used during general anesthesia
A person suspecting problems of hearing loss should contact any hearing aid clinic in India. These clinics provide a one stop shop for all your hearing issues and have sufficient infrastructure, relevant professionals and testing facilities all under one roof sparing you the hassle of running around the city from one place to another. The hearing aid clinics in Kolkata are currently using more advanced machinery and testing facilities. These hearing aid clinics are no less well equipped than clinics for hearing aid in Delhi.