METHOD FOR DETERMINING THE THRESHOLD OF FUNCTIONAL permissibility laser photocoagulation intramedullary tumors

摘要

A method for determining the threshold laser photocoagulation functional permissibility intramedullary tumor by intraoperative registration somatosensory evoked potentials, characterized in that the monitoring conductor is carried spinal cord function during the operation in step narcosis when implementing surgical approach tumor removal, and laser photocoagulation; photocoagulation is performed sessions under control of somatosensory evoked potentials, the transition from one session to another is carried out while reducing the P38 component of maximum amplitude is not more than 50% and maximum delays increase R38 is not more than 15% compared with the characteristic of somatosensory evoked potentials prior to laser photocoagulation when recovery rate in a time interval of 4-5 minutes; defines the number of sessions remaining volume of the tumor.