AbstractEight ears with complications due to chronic eustachian tube insufficiency had insertion of a silicone rubber tympano‐frontal shunt tube between the mastoid antrum and the ipsilateral frontal sinus. A one‐way valve designed to open at‐10 mm H2O was placed on the tympanic end of the tube to minimize tube obstruction by ear secretions.Follow‐up an average of 20 months post insertion showed six of the eight ears to have an aerated middle ear without fluid or tympanic membrane retraction or perf