Awake surgery in neurooncology. Part 2. Functional intraoperative mapping

Awake surgery is usually used to save patient’s speech. Various tests are applied for this purpose, whish selection  depends on tumor location. In multilingual patients verbal centers usually have different position. Location of each of them is necessary to keep patient’s communication capabilities after operation.To study vision, tests with presentations of color points or pictures on the screen divided on 4 parts are used. Such testing allows to estimate vision and speech simultaneously.Mapping of motor area in awake patients allows to evaluate this function more comprehensively including motion planning, proprioceptive control and balance. Stimulation of sensory area in awake patients gives opportunity to differ various types of sensitivity.Mapping and keeping of cognitive functions, memory, attention and ability of calculation increases chance to save professional skills and quality of life after operation.