TPO and Hashimoto thyroiditis: The analysis of prognostic factors and the relationship between vertigo and the objective assessment of the vestibular organ and the levels of thyroid hormones (TSH, FT4) and thyroid autoantibodies (anti-TPO, anti-TG) in patients with Hashimoto’s thyroiditis showed no negative effect of thyroid hormone levels or an increase in thyroid autoantibody levels on abnormal results of the directional preponderance in the caloric test or the assessment of cVEMPs.