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Revista de otorrinolaringología y cirugía de cabeza y cuello

versión On-line ISSN 0718-4816

Resumen

AEDO B, Cristián; STOTT C, Carlos; ALBERTZ A, Nicolás  y  TABILO C, Patricio. Post stapedectomy taste disorders. Rev. Otorrinolaringol. Cir. Cabeza Cuello [online]. 2009, vol.69, n.1, pp.7-12. ISSN 0718-4816.  http://dx.doi.org/10.4067/S0718-48162009000100002.

Introduction: In its course through middle ear, the chorda tympani nerve (CTN) is potentially exposed to surgical injury. Possible sequels of CTN injury are taste disorders, which can affect the life quality of patients. During stepedectomies, the CTN often must be displaced or even severed in order to gain access to the stapes footplate. Aim: To assess the temporal evolution of post stepedectomy taste disorders and their correlation with CTN preservation. Material and Method: A retrospective study was conducted between 2002 and 2007. Medical records of 141 patients subjected to stapedectomy were analyzed in search for CTN preservation or section during surgery. A questionnaire was applied to evaluate postoperative taste function and its evolution over time. Results: CTN was preserved in 131 patients (93%) and sectioned in 10 patients (7%). The incidence of taste disorders was 7.6% (10 patients) in the CTN preserved group and 20%> (2 patients) in the CTN severed group (p>0.05). All patients had fully recovered taste function by 12 months after surgery, recovery being faster in the CTN preserved group than in the CTN severed group (5 months vs. 11 months respectively). Conclusions: Taste disorders may be present in patients subjected to stapedectomy even when CTN is preserved; taste disorders are more severe and long lasting in cases where the CTN is sectioned.

Palabras clave : Taste disorders; stapedectomy; chorda tympani.

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