![]() ![]() However, proper identification of the above mentioned areas would enable the surgeon to radically remove the tumours. ![]() If the lesions are adjacent to the above mentioned areas, the normal anatomy would get distorted. If the lesions are within these regions surgeons could either take a biopsy or do a intracapsular decompression without damaging the mentioned areas to avoid postoperative dysfunction. In patients presenting for surgical resection of lesions involving, or adjacent to, the functionally important eloquent cortical areas, it is vital to achieve complete or near complete resection of the pathology without damaging the healthy surrounding tissues.The eloquent areas that the surgeons are concerned with are the primary motor, premotor cortex, supplementary motor cortex and speech areas. Good quality evidence is lacking and hence there is a need for well-designed RCTs to determine the effects of anaesthetic agents on electrophysiological mapping in this specific surgical population. The authors of this review aimed to identify and evaluate randomised controlled trials (RCTS) assessing the effect of anaesthetic agents on electrophysiological mapping of these functional areas of the brain. ![]() Anaesthetic agents are known to affect the mapping techniques. This technique is called electrophysiological mapping. Electrical properties of the brain cells are often monitored during these surgical procedures to accurately identify the functional areas. In patients with surgically removable lesions involving, or adjacent to, these areas, it is important to achieve a near complete resection without damaging the functional areas (normal brain tissue). There are discrete areas in the brain that are responsible for sensation (sensory), control of movement (motor) and language functions. ![]()
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