Tympanic membrane changes after installation of polyethylene grommets. An experimental study in the rat.

Abstract

The object of this study was to establish the morphological changes which occur when a polyethylene grommet is implanted in the normal tympanic membrane of experimental animals. We found a serous effusion around the grommet and in the attic during the first weeks after installation. All the grommets had been displaced away from the tympanic memebrane in a… (More)

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