Electrical Stimulation Mapping With Stereo-EEG Electrodes

The practice of stereo-EEG (SEEG) is expanding. Electrical stimulation mapping remains an important part of the surgical evaluation process in SEEG, as it is in subdural electrocorticography cases. Because the technique and electrodes used in SEEG and electrocorticography are distinct, the clinician needs to be aware of the important differences between these techniques when performing electrical stimulation mapping. In this review, the advantages, disadvantages, and potential safety concerns related to electrical stimulation mapping in SEEG are discussed. A case is presented illustrating the utility of SEEG cortical stimulation and safety concerns that need to be considered when performing these evaluations.