THE decompressive labyrinthine operation by opening the endolymphatic sac for the treatment of vertigo relies on anatomical, physiological, and clinical factors.
It may not be without interest to go back briefly over the history of the research which led me to recommend this therapy.
From the beginning of my otological studies, in 1921, I was interested in the structure and the physiology of the internal ear in comparative anatomy. It seemed to me, in fact, that one part of the internal ear, the endolymphatic sac, had not been studied with as much precision as the others by various French and foreign researchers.
Therefore, devoting myself to verifying the presence of this organ in vertebrates, I studied successively: the endolymphatic organ in selachians, teleosteans, batrachians, birds, and mammals, choosing for the latter, the guinea pig, the dog, and man. This research included serial cross-sections of the labyrinth of the various animals
Portmann G. Surgical Treatment of Vertigo by Opening of the Saccus Endolymphaticus. Arch Otolaryngol. 1969;89(6):809–815. doi:10.1001/archotol.1969.00770020811005
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