Setting
Blackman-gated 1kHz tone-pips with 1ms, 2ms and 3ms duration were used
in normal hearing (NH) subjects to calibrate the system and the standard
ABR threshold and wave V latency for this system were established. All
subjects would take four hearing tests: Pure tone audiometry (PTA)
before and six-month after the surgery, fs-ABR under anesthesia before
surgery and right after the ossicular chain reconstruction
intra-operatively. Bland-Altman and linear correlation analysis were
used to compare the agreement between PTA and fs-ABR results.