Fig. 1From: Case report of antiseizure medicine-induced long QT syndrome and a literature reviewInterictal video EEG. a Sharp waves distributed in the left temporal, central and midline areas. b, c Average channel pattern (b) and longitudinal bipolar channel pattern (c) from the same interictal EEG. At the longitudinal bipolar channel pattern, phase inversion of C3 was seen. Rectangular boxes show sharp wavesBack to article page