Eustachian tube function is important in pressure regulation of the middle ear. The efficacy or magnitude of pressure equilibration by tube openings should be determined by the gradient between middle ear and ambient pressure, but in theory also the duration of the tube opening may play a role. This study employed direct measurements of middle ear pressure in patients, who after parotidectomy h...

SUMMARY A case of recurrent glomus tympanicum presenting with epistaxis is described. CT and MR imaging revealed a homogeneously enhancing mass extending along the entire course of the eustachian tube, with a portion protruding into the nasopharynx. Glomus tumors tend to spread along the path of least resistance and may extend into the eustachian tube. The unique imaging appearance should place...

Introduction Eustachian tube dysfunction is very common and is the predominant cause of otitis media with effusion. Negative middle ear pressure generated by Eustachian tube dysfunction can cause deformation of the collagen layer in the ear drum. Collagen becomes stretched and looses its orderly array. Over time, deep retraction pockets form. If left untreated, the tympanic membrane becomes pro...

In eustachian tube dysfunction, the eustachian tube fails to open sufficiently, resulting in a difference between the air pressure inside and outside the middle ear. This condition can cause pain and hearing loss and may lead to barotitis media, otitis media, tinnitus, and vertigo. Although several treatment options are available, from antibiotics to surgery, little documentation of osteopathic...

OBJECTIVE To investigate the evidence for balloon dilatation of the eustachian tube using a transtympanic approach. METHODS A systematic search of several databases was conducted (using the search terms 'dilation' or 'dilatation', and 'balloon' and 'eustachian tube'). Only studies that used a transtympanic approach for the procedure were included. These studies were then assessed for risk of ...

OBJECTIVES/HYPOTHESIS Surgery of the paranasopharyngeal space is very hazardous due to the position of the internal carotid artery, which is surrounded by soft tissue with few anatomical landmarks. STUDY DESIGN Fresh cadaveric study. METHODS In this study, we used the maxillary swing procedure to have a broad view of the internal carotid artery using an anterior approach. We sought to estab...

Several methods for the examinaApplication Note discusses a simple tube to the external auditory canal. It tion of the Eustachian (auditory) tube and reliable method sonotuboalso analyses the acoustic events have been reported, however, most metry for accurate measurement occurring during swallowing while a of them have not been generally acof the tubal opening by using sound steady tone is del...