Study of eustachian tube function in normal adults and those with middle ear disease.

Vijay Babu, D (2014) Study of eustachian tube function in normal adults and those with middle ear disease. Masters thesis, Coimbatore Medical College, Coimbatore.


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Eustachian tube dysfunction is widely recognised as the triggering factor of middle ear disease. Though it happens to be the important factor for various middle ear problems, Eustachian tube function tests are not routinely done. Eustachian tube dysfunction predisposes the ear for chronic middle ear disease and it is a cause for concern to ENT Surgeon as the success rate of surgery is less when performed in ear with impaired tubal function. Eustachian tube function’s role in successful outcome of surgeries for chronic otitis media has become a topic of interest in recent years. From our study it is evident that Eustachian tube dysfunction is an important factor that determines the outcome of chronic otitis media. In most patients with healed central perforation and in post operative patients who were successfully treated by surgery, the Eustachian tube function was found to be normal. ET function was found to be partially or grossly impaired in most patients with recurrent or residual CP. In most of the CSOM patients and patients with retracted ear drum also the impairment of Eustachian tube function was found to be statistically significant. Chronic sinusitis, allergic rhinitis and smoking were the important causes of ET dysfunction. Mucosal disease is the leading cause of ET dysfunction and a careful search for the underlying aetiology can be effective in directing specific treatment to resolve or mediate the ear sequelae. When medical treatment is inadequate, surgical intervention may be indicated. Tympanostomy tubes have a long proven record of efficacy but repeated insertion may lead to tympanic membrane pathology. Adenoidectomy may be effective, especially in children or in adults with significant hypertrophy compromising the tubal dilation. Eustachian tuboplasty is a new treatment to widen the tubal orifice and aid the valve in dilation when medical and conventional surgical procedures have proven inadequate. But the method of Eustachian tuboplasty is yet to be standardized. Further studies are needed before it finds universal acceptance. Eustachian tube function testing by impedance audiometry is a simple non-invasive method of testing the Eustachian tube function and helps in identifying the tubal dysfunction. Patients with tubal dysfunction should be evaluated for underlying cause and treatable causes should addressed before proceeding for surgery as it increases the success rate of tympanoplasty.

Item Type: Thesis (Masters)
Uncontrolled Keywords: eustachian tube function; normal adults; middle ear disease
Subjects: MEDICAL > Otolaryngology
Depositing User: Devi S
Date Deposited: 10 Jul 2017 11:53
Last Modified: 10 Jul 2017 11:53

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