Objectives: To evaluate the treatment results of definite and probable Meniere's disease (MD). Methods: A total of 51 patients, who were diagnosed with Meniere's disease (MD) between January 2019 to January 2021 at EMJJ ENT hospital's vestibular laboratory in Mongolia, was included in our study. The diagnosis of Meniere's disease was according to the 2015 Diagnostic criteria of Meniere's disease of the Classification Committee of the Barany Society. The clinical dizziness handicap inventory (DHI) questionnaire was taken, and videonystagmography (VNG), caloric test, and PTA was done in all patients. Results: Of a total of 51 patients, 9 were diagnosed as probable MD, and 42 were diagnosed as definite MD. The mean age of the patients was 43.7, male to female ratio was 1:1.8, 37 (72.5%) patients were in treatment group I who all received medication only, and 14 (27.5%) patients were in treatment group II who were refractory to prior medical therapy underwent ITDL Comparing the two treatment groups, there were significant differences in all test results (p = 0.000). After ITDI hearing improved (p = 0.000). Conclusions: VNG, caloric test, and DHI questionnaire results show that both medical treatment and ITDI are successful in improving vestibular function.

Objective: To compare the clinical characteristics and treatment results of different clinical types of benign paroxysmal positional vertigo (BPPV). Methods: A total of 162 patients diagnosed with BPPV between January 2019 to January 2021 at EMJJ ENT Hospital's vestibular laboratory in Mongolia were included in our study. The diagnosis of BPPV was made according to the 2017 AAO-HNS clinical practice guideline for BPPV. Clinical questionnaires, Dizziness Handicap Inventory (DHI) questionnaires, and videonystgamography were obtained for all patients. Results: From a total of 162 patients diagnosed as BPPV, 62.4% had posterior canal BPPV, 27.1% had horizontal canal BPPV, and 10.5% had anterior canal BPPV. Fischer's exact test showed a higher incidence on the right side (p = 0.000). The mean age 50 ± 11.7; the male to female ratio 1:4. When the relationship between the effectiveness and duration of the treatment was assessed, 123 (75.9%) recovered after 7 days. DHI score after treatment signi cantly after treatment (p = 0.000) regardless of the clinical type. Conclusions: Patients who had a longer duration of symptoms underwent unnecessary diagnostic tests and developed additional psychologic problems. There were no statistically signi cant differences when we compared the characteristics and treatment between the three clinical types of BPPV.