DEVELOPMENT OF THE ELECTRODES OF COCHLEAR AND FACIAL INTRAOPERATIVE REAL-TIME MONITORING FOR ACOUSTIC NEUROMA SURGERY

Abstract

We developed the electrodes of intraoperative continuous facial electromyography, and of newly invented continuous cochlear nucleus action potentials for postoperative facial and hearing preservation in acoustic neuroma surgery. 62 consecutive patients underwent retrosigmoid acoustic neuroma surgery during 2007∼2008. Overall excellent facial nerve function (HB 1-2) was maintained in 59 out of 62 patients (95%). Meanwhile overall hearing was preserved in 53 out of 62 patients (85%).