Utriculustomy
presentation of a new technique for the treatment of vertigo
DOI:
https://doi.org/10.22491/2357-9730.125216Keywords:
Utricle, vertigo, oval window, otosurgeryAbstract
OBJECTIVE: To describe a new technique for the surgical treatment of vertigo caused by Ménière's disease, the utriculostomy, developed at HCPA.
MATERIALS AND METHODS: The utriculostomy is based on the obtainment of a permanent fistule in the membranous labirynth, through the application of local heat to enable the endo and perilymphatic spaces to communicate in the utricule level. The technique was tested in 12 sheep, using a microcautery by radiofrequency with programmable time and temperature.
RESULTS: A histologic study of the temporal bones was performed to assess the outcome of the utriculostomy. A neomembrane was observed in three out of five
operated sheep. There were no cases of utricule discontinuity.
CONCLUSIONS: The results attest to the feasibility of performing the utriculostomy through the oval window in sheep, especially with the microcautery that was especially for this procedure.
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