Verlauf der Chorda tympani bei Operationen des Mittelohres: Klinische Einteilung und ihre Bedeutung für postoperative Schmeckstörungen

Abstract

This study confirms the high diversity of the surgical anatomy of the CTN. According to the proposed classification the A1-H1-D2/3-situation belongs to the CTN-constellations observed most frequently. It is this very anatomical situation, that apparently tends to be associated with postoperative taste deficits quite regularly due to inevitable intraoperative manipulations. Taking into account the results of this study an otosurgeon might be able to anticipate the potential risk for the CTN by judging the AHD-status intraoperatively and - therefore - reduce taste disorders postoperatively. Additionally, the probability of a postoperative gustatory dysfunction depends upon the kind of underlying middle ear disease as well.

Taste Alteration in External Auditory Canal Cholesteatoma: Indicator of Impending N VII Affection

“…Between 1992 and 2010, testing was performed solely with liquid solutions of 10% sucrose for sweet, 5% citric acid for sour, 7.5% sodium chloride for salt, and 0.1% quinine sulfate for bitter [24] at our institution. This screening test has been widely promoted [25, 26] and tested in otology patients [27]. The test solutions were applied using cotton tip swaps on a 1 × 2-cm area unilaterally at the anterior third of the protruded tongue.…”