Effect of hormone replacement therapy on the auditory brainstem response of postmenopausal women.

Objective: To investigate whether hormone replacement therapy modifies the auditory brainstem response in postmenopausal women.

Methods: Nineteen postmenopausal women received hormone replacement therapy (study group) and 25 received no treatment nor placebo (control group). In both groups, age ranged from 45 to 60 years and pure-tone sensitivity was 25 dB or better at frequencies between 500 and 2000 Hz.