Neural Electrophysiological Monitoring In The Application Of The Microsurgery Of Intra-spinal Canal Tumor

Objective:To discuss the application of intraoperative Neurophysiological Monitoring in the microsurgery made for intraspinal tumor patients. Method:The clinical data of 20 patients with instraspinal tumor from May, 2012 to October, 2014 were analyzed retrospectively. The data suggested that all of the 20 cases had adopted microscopic resection and the surgeries were assisted with somatosensory evoked potentials, motion evoked potential and electromyogram. Compare the preoperative and postoperative Mc Cormick spinal cord function classification. Results:18 cases tumors were totally resected and 2 cases tumors were partially resected. Postoperative pathological analysis 4 spinal meningiomas, 5 epidermoid cysts, 4 neurilemmomas, 1 neurofibroma, 2 lipomas, 2 astrocytomas(1 grade Ⅰ astrocytoma and 1 grade Ⅱ astrocytoma), 2 cystic teratomas. Preoperative clinical Mc Cormick spinal cord function classification:Ⅰ level 8 cases,Ⅱ level 8 cases,Ⅲ level 3 cases,Ⅳ level 1 case.Postoperative clinical Mc Cormick spinal cord function classification:Ⅰ level 12 cases,Ⅱ level 6 cases,Ⅲ level 1 case,Ⅳ level 1 case.3~12 months follow-up by outpatient service and telephone back-visiting after the surgeries suggested that 18 patients’ neurological function had become stable or had been improved, 1 recurred, 1 exacerbated and no death case. Conclusion:Being used during the whole course of the microsurgery of intraspinal tumor, Intraoperative Neurophysiological Monitoring can help to offer timely warning to surgeons to stop the dangerous operations, so that we can reduce the injury in iatrogenic treatment, avoid the attack on the function of the spinal cord, increase the accuracy of the surgeries and the total removal rate and improve the patient’s prognosis.