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Revista Uruguaya de Medicina Interna

Print version ISSN 2393-6797On-line version ISSN 2393-6797


MARTINEZ, Fernando; SALLE, Federico; MORAGUES, Rodrigo  and  BERTULLO, Gonzalo. Usefulness of intraoperative stimulation in surgery of expansive intracranial processes under general anesthesia. Rev. Urug. Med. Int. [online]. 2017, vol.2, n.1, pp.58-63. ISSN 2393-6797.


The method of intraoperative cortical and subcortical stimulation (ICS) is a technique that in the last decade has spread worldwide thanks to the successes reported. It has contributed to wide resections of brain tumors in eloquent areas preserving their functional indemnity. This study aims to show the results of ICS in a series of patients with brain lesions operated under general anesthesia.


A series of 11 patients with brain lesions were operated on in the period between august 2013 and july 2016 in different uruguayan health centers. The patients where operated on under general anestesia and all of the cases were lesions related to the pyramidal pathway, cortically or subcortically. Results: There were six women (55%) and five men (45%), ranging from 30 to 65 years of age. The motor function was preserved in 7 patients (63%). There were 8 primary and 3 secondary tumors. The topographic distribution was: 5 frontal (45%), 1 rolandic, 4 parietal, 1 thalamic. Stimulation for motor response was positive in 6 cases (55%). Complete resection was performed in 7 cases (65%).


: The ICS allows mapping of the pyramidal tract and determines the relationship established with the pathological process. This impacts directly on the extent of tumor resection respecting motor function, thus leading to a better quality of life for patients.

Keywords : Neurostimulation; Glioma surgery; Neuro-oncology.

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