Madras ENT Research Foundation, Chennai


Starting with an initial bed strength of a mere 6 beds, Madras ENT Research Foundation (MERF) has grown into one of the biggest ENT hospitals in the country. More than the quantitative growth, what has been gratifying for us has been the qualitative growth. The institution has today facilities which can be the envy of many an ENT center in the most advanced countries. Thus Madras ENT Research Foundation has been in the forefront of the Cochlear Implant Scenario in India and today has one of the largest Cochlear Implant clinics in the world. It has also been a pioneer in introducing lasers in the field of Otorhinolaryngology. Madras ENT Research Foundation was one of the earliest centers in the country to start a dedicated sleep medicine department and today, boasts one of the most advanced sleep medicine departments in the country.

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English, Hindi, Tamil, Translators can be arranged for other Languages


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Ear, Nose and Throat (ENT) 16 procedures


This is a surgical procedure used to remove the adenoids (lymphoid tissue in the nasopharynx) when they are enlarged hence causing recurrent earache, chronic infections or impaired breathing via the nose. It is performed by an otolaryngologist.

Cochlear Implant

This is an electronic gadget (device) used to replace the functions of the inner ear when it is damaged. The implant does the work of the Cochlear by generating sound signals for the brain. It is thus useful in persons with profound or moderate hearing loss bilaterally. The device helps one to her better. Cochlear implant surgery is done by ENT Surgeon.

Laryngeal Surgery

These are surgeries done on the larynx to remove various pathologies such as laryngeal cancer, laryngeal papilloma, laryngeal granulomas, etc. Total laryngectomy (open) is the complete removal of the larynx while partial is incomplete removal. This normally depends on the location and stage of cancer. Endoscopic laryngeal surgeries are getting common. Microlaryngeal surgeries are used to operate on one's vocal cord. Laser surgery is a recent addition.


It is a test done to test one’s ability to perceive sound. The machine used to do the test is called an audiometer. It measures ones hearing acuity based on variations in sound tone, pitch, and intensity. It helps grade conduction deafness and rules out sensorineural hearing loss.


This is the surgical removal of the larynx and then separating it from the nose, esophagus and the moth. It can be total or partial. In total, the entire larynx is removed while in partial, only a portion is exercised. It is commonly used in the treatment of laryngeal cancers. It is a procedure performed by ENT surgeons.

Sleep Apnea Surgery

This surgery is only done when other treatment modalities are exhausted. The list of surgical options that can be done to treat sleep apnea includes: tonsillectomy and adenoidectomy, tracheostomy, radiofrequency ablation, maxilla-mandibular advancement, palatal surgery, bariatric surgery, nerve stimulation and uvulopalatopharyngoplasty.


This is the surgical removal of part or whole of the thyroid tissue. The Parathyroid gland is usually preserved. It can be partial thyroidectomy where part of the thyroid is preserved, or it can be total thyroidectomy where the whole of the thyroid tissue is removed. It is commonly indicated for lived conditions like goiter, thyroid malignancies, etc.


This is the endoscopic examination of the larynx and the back of the throat. The larynx is part of the throat. The procedure is carried out ear nose and throat specialists. There are two types of laryngoscopy procedures, i.e., direct laryngoscopy and indirect laryngoscopy.


This is a procedure done to correct perforation in the pars tensa of the eardrum. When the procedure is combined with the reconstruction of the ear ossicles, the procedure is termed tympanoplasty. The operation is normally done while the patient is lying supine with the face turned to one side such that the side being operated lies upward. The procedure is carried out otolaryngologists. There are two major techniques currently being used, i.e., the overlay technique and the underlying technique.

Ossicular Chain Reconstruction

This is a procedure done to treat conductive deafness. It sis a middle ear procedure that is performed by otolaryngologists. Damage middle ear bones i.e. stapes, malleus and incus can be replaced in the process.


This is a procedure done to straighten the nasal septum that lies between the two nasal septums. The submucous septum is resected and reconstructed. It is done to correct a nasal septum that deviates.


This is a surgical operation done to reconstructs the eardrum or the middle ear bones. There are five type of Tympanoplasty procedures i.e. type l to type V Tympanoplasty procedures.

Neck Dissection

This is a surgical procedure in which the fibrofatty content of the neck is removed as a treatment for metastasis to the cervical lymph nodes. Head and neck malignances commonly metastasize to the cervical lymph nodes. There are various surgical options available i.e. radical neck dissection, modified radical neck dissection, selective neck dissection and extended radical neck dissection.


This is the surgical removal of part or whole of the tongue. It is done to manage malignant tumors like oral cancers.

Facial Nerve Paralysis - Nerve Repair

Dynamic and static reconstruction procedures are employed for facial reanimation in patients suffering from facial nerve paralysis. However, dynamic strategies tend to be more successful and fruitful and should be offered to each patient considering reconstruction, unless health risk contraindications exist. The most common approaches for reconstruction are direct facial nerve repair with or without grafting, nerve transfer, cross-facial nerve grafting, and muscle transfer (either regional muscle or free-muscle neurotized transfer)


A mastoidectomy is surgery to remove cells in the hollow, air-filled spaces in the skull behind the ear. These cells are called mastoid air cells. This surgery used to be a common way to treat an infection in mastoid air cells. In most cases, the condition was caused by an ear infection that spread to the bone in the skull. Mastoidectomy may be used to treat colesteatoma, complications of an ear infection (otitis media), infections of the mastoid bone that do not get better with antibiotics and to place a cochlear implant

Sleep Medicine 1 procedures

Sleep Study

This is a non-invasive medical test that is done overnight to allow physicians to monitor ones sleep so as to see what is taking place in the body and brain. For this test, the patient will be taken to a sleep laboratory in a sleep center or a hospital where he will spend overnight. The most common sleep studies include multiple sleep lacency test (MSLT), polysomnogram and maintenance of weakness test (MWT).


Specialists working with Madras ENT Research Foundation, Chennai

Prof. Mohan Kameswaran Ear, Nose and Throat (ENT)

  • He has been a recipient of the ‘PADMA SHRI’ National Award from the Former President, His Excellency Late Dr. A.P.J Abdul Kalam
  • He is one of the pioneers of Cochlear Implant Surgery in India and has Mentored and was responsible for starting Cochlear Implant surgery in 32 centers in India, and in 7 centers overseas including Sri Lanka, Armed Forces Hospital in Bangladesh, Nigeria & Nepal.
  • He is the FIRST Surgeon in South and South East Asia to have performed the Auditory Brainstem Implant and the FIRST Pediatric Brainstem Implant in Asia, January 2009

Dr. R.S. Anand Kumar Ear, Nose and Throat (ENT)

  • He has over 35 yrs experience in ENT and Head & Neck Surgery.
  • His special interests are in the field of Cochlear implantation, Laser surgery, Endoscopic sinus surgery and Skull base surgery.
  • He has organized and conducted several workshops including the All India Temporal Bone Workshop for the past 17 years.

Dr. Sathiya Murali Ear, Nose and Throat (ENT)

  • She is one of the outstanding neuro-otologists in India and heads the Department of Balance disorders and the Vestibular lab at Madras ENT Research Foundation.
  • Her interests are in the field of Neurotology & Vestibular Medicine.
  • She has over 16 yrs experience in ENT and Head & Neck surgery
  • Her other special interests are Laser surgery, Endoscopic sinus surgery, Skull base surgery,Cochlear Implant and Micro ear surgery.

Dr. Kiran Natarajan Ear, Nose and Throat (ENT)

  • Her interests are in the field of Allergy and Rhinology, Laser surgery, Endoscopic sinus surgery and Micro ear surgery.
  • She has 13 yrs experience in ENT and Head & Neck surgery.
  • She heads the Allergy clinic at MERF

Dr. Raghu Nandan Ear, Nose and Throat (ENT)

  • He specializes in Neuro-Otology, Auditory Implantation & Skull-Base Surgery having received higher surgical training from reputed centers in the UK, namely Salford Royal Hospital in Manchester and Queen Elizabeth Hospital in Birmingham.
  • He is currently involved in setting up a state-of-the-art Skull-Base unit at MERF with multidisciplinary inputs from a team of Neurosurgeons, Plastic Surgeons and Maxillofacial Surgeons, in order to provide comprehensive care for patients with complex skull-base pathology.
  • Apart from his passion to succeed as a competent clinician and skilled surgeon, he dedicates his professional time to being a researcher, academic, medical leader, teacher and trainer for his peers and junior colleagues.

Dr. P. Vijaya Krishnan Ear, Nose and Throat (ENT)

  • His interest is in the field of Sleep Disorders and Obstructive Sleep Apnoea and he heads this department
  • He is a Member of World Association of Sleep Medicine
  • He is the only Indian in the International Scientific Committee member of World Congress on Sleep Medicine and is the Founder Secretary of Indian Association of Surgeons for Sleep Apnoea.

Dr. S. Sudhamaheswari Ear, Nose and Throat (ENT)

  • She is a Consultant ENT surgeon at Madras ENT Research Foundation, Mandaiveli centre from 2008 and Consultant at Madras ENT Research Foundation since 2009.
  • She has special focus in the field of Community Otorhinolaryngology.
  • She is currently the Nodal officer for TNCMCHIS Cochlear implant programme

Sr. Senthil A Vadivu Ear, Nose and Throat (ENT)

  • She is a Consultant ENT surgeon at Madras ENT Research Foundation and she is in-charge of the Cochlear Implant clinic at MERF
  • She is the Cochlear Implant coordinator for Tamil Nadu Chief Minister's Comprehensive Health Insurance Scheme.
  • She is also a part of an ongoing clinical study on genetic association in children with congenital hearing loss

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