| Autor: |
Candela, Santiago, Climent, Alejandra, Thonon, Vanesa, Pérez, Belén, Vanegas, Maria, Ortigoza, Darío, Darling, Alejandra, Alamar, Mariana, Rumià, Jordi, Ferrer, Enrique |
| Zdroj: |
Stereotactic & Functional Neurosurgery; 2017 Supplement, Vol. 95, p181-181, 1/2p |
| Abstrakt: |
Objectives: Internal pallidal nucleus stimulation surgery for the treatment of dystonia is performed under general anesthesia in paediatric patients. The recording of evoked activity in the visual and motor cortex by intraoperative stimulation of the therapeutic electrodes could be useful to optimize their localization. Methods: We perform intraoperative electrical stimulation through the cerebral electrodes according to the usual therapeutic parameters while recording motor cortical and visual evoked activity. We collect the intensity in wich capsular and visual responses appear. We search for a possible correlation between the intraoperative findings and the response after the activation of the system. Results: Five patients aged between 7 and 16 years old have been operated. Visual evoked response was obtained in all of them at an intensity between 1 and 6 volts.Involvement of the internal capsule has been recorded in four of them between 4 and 6 volts. We did not change the location of the electrodes despite these findings. Postoperative CT monitoring showed the placement of the electrodes according to preoperative planning. In the patients that intraoperative motor stimulation was obtained, a lower threshold of adverse effects due to internal capsule involvement was observed in the postoperative period. In all cases we solved this using higher contacts for therapeutic stimulation. CONCLUSIONS: Intraoperative neurophysiological monitoring may be useful to optimize the location of the internal pallidal electrodes and to predict the stimulation window due to its proximity to the internal capsule. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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