Afterdischarges during cortical stimulation at different frequencies and intensities EPILEPSY RESEARCH Motamedi, G. K., Okunola, O., Kalhorn, C. G., Mostofi, N., Mizuno-Matsumoto, Y., Cho, Y., Meador, K. J. 2007; 77 (1): 65-69


The occurrence of unwanted afterdischarges (ADs) impedes cortical stimulation for mapping purposes. We investigated the safety of several stimulation paradigms.We compared the incidence of ADs and behavioral responses of two stimulation frequencies (50 and 100 Hz), at two intensities (1 and 0.2 ms pulse widths).Stimulation with 100 Hz was more likely to cause ADs than 50 Hz, and stimulation using 1 ms pulse width was more likely to cause ADs than 0.2 ms.Stimulation using 50 Hz frequency with a pulse width of 0.2 ms might be safer during cortical mapping.

View details for DOI 10.1016/j.eplepsyres.2007.08.001

View details for Web of Science ID 000251118900009

View details for PubMedID 17869064