Transotic Approach

Synonyms

Transcochlear approach; Transpetrosal approach; Transtemporal approach; Translabyrinthine approach

Definition

The transotic approach is a lateral surgical approach through the temporal bone that permits access to the petrous apex, cerebellopontine angle, and central skull base. The transotic approach leaves the facial nerve in the fallopian canal whereas the transcochlear approach entails total facial nerve decompression with anterior or posterior re-routing (Jackler 2005).

Purpose

The purpose of the transotic approach is to remove, drain, or biopsy lesions involving the otic capsule, petrous apex, cerebellopontine angle, and central skull base (Fisch and Chen 2010; Jackler 2005).

Principle

Informed Consent

Written informed consent for the transotic approach should discuss the following risks and side effects: deafness, vertigo, facial paralysis, tinnitus, stroke, death, change in taste, dry eye, imbalance, cerebrospinal fluid leak, and meningitis.

Equipment

The transotic...