Predictive factors for postoperative outcome after endolymphatic sac surgery. Part 1: Clinical and prognostic STROBE report.

OBJECTIVE

To evaluate preoperative predictive factors 2years after endolymphatic sac surgery (ESS) in patients with Ménière's disease (MD).

MATERIALS AND

METHODS

A retrospective single-center study included patients who underwent ESS between 2015 and 2022, with unilateral MD according to the criteria of the American Academy of Otolaryngology - Head and Neck Surgery (AAO-HNS) as revised in 2015, and resistant to first-line medical treatment. The main study endpoint was the incidence of postoperative vertigo episodes. Secondary endpoints comprised hearing preservation at 2years and surgical efficacy.

RESULTS

Thirty-eight patients were included. Significant vertigo control was achieved in 63% (n=24). No predictive factors were identified for vertigo control or improvement in quality of life. Pure-tone and speech audiometric results were preserved at 2years. Whether the endolymphatic sac was sectioned or not did not significantly impact surgical outcome.

CONCLUSION

No predictive factors for successful ESS emerged. ESS is a conservative second-line surgical treatment, with key indications for bilateral MD or MD in patients with preserved hearing.