A cochlear implant is a surgically implanted electronic device designed to help people with severe to profound hearing loss perceive sound. Unlike hearing aids, which simply amplify sound entering the ear canal, this device bypasses the damaged portions of the inner ear.
Normally, sound waves pass through the ear canal, hit the eardrum, and then pass through three small bones in the middle ear: the malleus, incus, and stapes. The sound vibrations then hit the cochlea, which is a spiral-shaped structure measuring 9 mm in diameter and located in the deepest part of the temporal bone. Inside the cochlea are sensitive hair cells that change sound vibrations to electrical signals to the nerve.
When the hair cells are severely damaged, it may not be possible to improve hearing with the use of sound amplification. A cochlear implant has two main parts:
The brain then interprets these electrical signals as sound. Over time, with training and rehabilitation, many patients learn to recognize speech and environmental sounds more clearly. Consult cochlear implant doctors in Navi Mumbai at our Department of ENT for detailed information and guidance.
In everyday practice, the decision is rarely immediate. Several factors are evaluated carefully before suggesting implantation.
Patients who may benefit include:
Parents often ask whether a young child is “too small” for surgery. In many cases, early implantation, sometimes within the first year of life, may support better speech and language development. However, the final decision depends on detailed hearing assessments, imaging of the inner ear, and overall health.
The journey usually begins with several evaluations rather than surgery itself.
Before surgery
Patients typically undergo:
These discussions are important. A cochlear implant restores access to sound, but it does not recreate natural hearing immediately.
During surgery
The procedure is usually performed under general anaesthesia and may take around two to three hours. A small incision is made behind the ear, usually along the crease where the ear meets the scalp. The surgeon creates a tiny recess in the mastoid bone and carefully reaches the cochlea. A flexible electrode array, often around 20–30 mm long, is gently inserted into the cochlear turns.
The receiver is secured beneath the skin, and intraoperative testing is performed to confirm that the electrodes are functioning properly and stimulating the auditory nerve. Most patients remain in the hospital for observation and are discharged within a day or two.
After surgery
Healing generally takes a few weeks. The implant is not activated immediately.
Once the incision has healed:
Rehabilitation plays a significant role. Children usually undergo auditory-verbal therapy, while adults often participate in listening training sessions. The brain needs time to interpret the new electrical signals as meaningful sound.
Management of severe hearing loss requires close collaboration between ENT surgeons, audiologists, speech therapists, and rehabilitation specialists. At UMC Hospitals, our team performs the best cochlear implant surgery in Navi Mumbai with positive and restorative outcomes.
Patients are evaluated using advanced audiological testing and detailed imaging of the temporal bone and cochlea. Surgical planning is carefully tailored to the anatomy of the inner ear. After implantation, long-term follow-up focuses on device programming, listening training, and speech development support.
For many patients, and especially for children who have never heard speech before, the journey after implantation is gradual. But with consistent therapy and family support, access to sound and communication often improves significantly over time.
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