Abstract
Detailed information was obtained by questionnaires, office visits, chart reviews, and telephone calls from 171 of 179 consecutive patients who underwent endolymphatic sac surgery between 1976 and 1986. A comparison of surgical results was made. For patients followed more than 24 months, complete control of vertigo was obtained in 40 of 68 patients (59%) by endolymphatic subarachnoid shunt and in 27 of 60 patients (45%) who underwent a variety of sac incision operations. This difference achieved borderline statistical significance (p less than or equal to 0.057). Profound or total hearing loss occurred in 8 patients (4.3%), 6 of whom had sac mastoid procedures. The percentage of patients indicating an absence of disability improved in both groups dramatically following surgery.
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