adj. within the middle ear cavity (see ear), usually referring to drugs injected through the eardrum to treat conditions of the inner ear. See also transtympanic.
adj. across the eardrum. This can refer to the injection of medication through the eardrum into the middle ear cavity (see intratympanic) to treat conditions of the inner ear or the insertion of an electrode through the eardrum to perform *electrocochleography.... transtympanic
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