AI Article Synopsis
- * Gustatory function was measured using electrogustometry at various intervals post-surgery, revealing significant impairment at 6 months for the chorda tympani nerve, with recovery by 1 year.
- * In contrast, the glossopharyngeal nerve and greater superficial petrosal nerve showed no taste function impairment due to the surgery.
Article Abstract
Objective: To evaluate the gustatory function before and after vestibular schwannoma (VS) surgery.
Methods: In this retrospective study, we evaluated the gustatory function of 12 patients who underwent VS surgery at Tsukuba University Hospital between 2012 and 2018. Gustatory function was examined using electrogustometry before VS surgery and 3 months, 6 months and 1 year after surgery. Electrogustometry was tested at the area mapped to the chorda tympani nerve, glossopharyngeal nerve and greater superficial petrosal nerve (GSPN). Intergroup mean comparisons of the threshold were performed using a one-way analysis of variance (ANOVA) followed by the Bonferroni post-hoc test.
Results: The gustatory function mapped to the chorda tympani nerve was significantly disturbed 6 months after the surgery as compared with the preoperative function (p = 0.033) and that the dysfunction recovered at 1 year. However, gustatory function mapped to the glossopharyngeal nerve and greater superficial petrosal nerve (GSPN) was not impaired.
Conclusion: The gustatory function mapped to the chorda tympani nerve is impaired after surgery for VS. The dysfunction peaked at 6 months after surgery, and recovered within 1 year.
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| http://dx.doi.org/10.1016/j.anl.2021.05.011 | DOI Listing |
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