“…The occurrence rate of vertigo was also summarized as a list. Concerning the types of vestibular examinations, the caloric test was performed in 16 studies ( 7 , 8 , 14 , 17 – 19 , 24 – 33 ), the cVEMP test was performedin 13 studies ( 7 , 8 , 14 , 17 – 19 , 24 – 28 , 34 , 35 ), and the oVEMP test was performed in 5 studies ( 17 , 24 , 26 , 27 , 34 ). In all 18 investigations, hearing recovery for abnormal and normal caloric response was provided in 7 studies ( 18 , 19 , 27 , 29 – 31 , 33 ), the number of patients with hearing improvement with abnormal and normal cVEMP response was provided in 4 studies ( 18 , 19 , 25 , 27 ), and 1 study provided hearing outcomes for abnormal and normal oVEMP responses ( 27 ).…”