Eustachian tube
Enlargement of the Eustachian tube opening in the nose with laser or balloon dilatation is being evaluated as a potential treatment for tympanic membrane retraction. There are two methods for this technique: Dennis Poe popularized the transnasal introduction of the balloon catheter to dilate the distal (nose end of the Eustachian tube). Muaaz Tarabichi pioneerd the dilatation of the proximal (ear side of the eustachian tube) through transtymapnic (trans ear) introduction of the balloon catheter.