Conclusion
The Blackman-gated 1kHz tone-pip ABR intra-operative monitoring system via loudspeakers showed high efficiency and accuracy in optimizing the position of prosthesis and predicting the post-surgery long-term HI both for PTA at 1kHz and average of 0.5/1/2kHz intra-operatively. This system may help otologists improve HI and reduce revision surgery rate which is clinically to the patients’ interest.