Research Article

Hyperbaric Oxygen Therapy Promotes Hearing Gain with Increases in Serum IGF-1 and HSP70 in Patients with Idiopathic Sudden Sensorineural Hearing Loss

Table 2

Comparison of hearing improvement in ISSHL patients (dB,  ± s).

GroupsnInitial PTAAfter-treatment PTAHearing gain

HBOT + MT group3580.9 ± 11.255.8 ± 17.2bc25.1 ± 11.9d
MT group3578.8 ± 13.865.5 ± 14.8b13.3 ± 6.8

aData are shown as mean ± SD. b vs. initial PTA. c vs. MT group. d vs. MT group. HBOT + MT group: HBOT and medical therapy group; MT group: medical therapy group. PTA: pure-tone average.