ENT Problems

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Eustachian Tube Functions Test: Methods and Types

Principle: Demonstration of tubal patency without external aids.
Method: After taking a deep breath, the patient pinches his nose and closes his mouth in an attempt to blow air in his ears. Otoscopy shows movement of the drum. Auscultation reveals crackling.

Note: Failure of this test does not prove pathologic occlusion of the tube.

This maneuver in the presence of nasal and nasopharyngeal infection carries the danger of transmission of infection to the ear.

Principle: It is safer and confirms normal tubal function.
Method: The nose is closed and the patient swallows. There is in drawing of the tympanic membrane, confirmed by otoscopy and on auscultation when a noise is heard.

Principle: When the soft palate is elevated the pressure in the nasopharynx is increased which opens the tube.
Method: The doctor occludes one of the patient's nostrils with the olive of a rubber balloon and pinches the other nostril tightly. The patient elevates the palate by swallowing or saying "Kay, Kay". At the same time air pressure in the closed nasal cavity is increased by pressing the Politzer's bag. The doctor can hear the rush of air into the middle ear by auscultation using a tube. Optical assessment can also be used.

Principle: It is to artificially blow air through the tubal opening.
Method: A silver catheter with an angulated tip is passed through the nose to engage the tubal opening. Air is forced into the ear by connecting the catheter to a balloon.
Complications: Tubal otitis media, rupture of an atrophic drum, nasal bleeding, damage to tubal ostium.

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