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Table 1 Timing of normalization of post-op tympanograms

From: Middle ear ventilation status postoperatively after translabyrinthine resection of vestibular schwannoma with mastoid obliteration and Eustachian tube occlusion: is the Eustachian tube enough to ventilate the middle ear without the mastoid air cell system?

Time interval post-op Number of patients Percent of patients
Less Than 6 Months 4/15 27 %
6–12 Months 6/15 40 %
12–24 Months 5/15 33 %