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Figure 1: Basic concept of intratympanic treatment. Medication is injected through the tympanic membrane into the middle ear cavity in a quantity that is sufficient to fill the round window niche. The active substance is diffusing across the round window membrane into the basal turn of the perilymph filled scala tympani of the cochlea from where it is spreading further

Figure 1: Basic concept of intratympanic treatment. Medication is injected through the tympanic membrane into the middle ear cavity in a quantity that is sufficient to fill the round window niche. The active substance is diffusing across the round window membrane into the basal turn of the perilymph filled scala tympani of the cochlea from where it is spreading further