Barotraumatic otitis media is a result of:
Ans: A (Rapid descent while in an aircraft) Ref: Diseases of the Ear Nose and Throat by PL Dhingra.5th edn .2010.pg 74Explanation:Barotraumatic otitis mediaSeen in rapid descent during flight, deep water divingMechanism: when the difference between the atmospheric pressure and the middle ear pressure is >90mmHg then there occurs' locking' of the Eustachian tube.Locking occurs because collapse of soft tissue into the Eustachian tube.The negative middle ear pressure leads to transudation, hemorrhage and even ruptures of tympanic membrane and round window'.Patients will complain of ear fullness, decreased hearing, earache and tinnitusO/E tympanic membrane may retracted, congested or even ruptured, hubbies may be seen in the middle ear through the tympanic membrane.Treatment: Nasal decongestants and anti-histaminics and in severe cases a myringotomy may be required.
Rapid descent while in an aircraft
Rapid ascent while in an aircraft
Sudden acceleration while in a bus
Sudden deceleration while in a bus
Disorders of Middle Ear (Otitis Media)