Tympanomaxillary shunt is a method for obtaining permanent ventilation of the middle ear in cases with long-term obstruction of the Eustachian tube. The shunt establishes a permanent communication between the middle ear and the maxillary sinus by way of a silicone-rubber tube. It leaves the tympanic membrane and the auditory canal intact. It also permits positive pressure ventilation, eg, by the Valsalva technique. The method has been used in five patients. The observation times are now between two months and four years.
Ekvall L, Drettner B. Tympanomaxillary Shunt. Arch Otolaryngol. 1973;97(1):21–23. doi:10.1001/archotol.1973.00780010025007
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