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To study the effects of a persistent perilymph fistula on the cochlea, a small cannula was inserted into the scala tympani of the basal turn of cochlea in guinea pigs. A month later, cochlear morphology and blood flow were studied using either histological evaluation or the microsphere surface preparation technique. Some animals showed no cochlear(More)
For an accurate histological evaluation of cochlear blood flow, it is essential to fix the cochlear vessels while maintaining their physiological state. In the present study, we administered 10% CO2 to guinea pigs and then used phase-contrast microscopy to determine how two different methods of fixation influenced the cochlear vasculature. The first method(More)
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