case_images: PMC5827465_01
case_images: An inadequate response in the ninth session (bilateral brief pulse ECT, Low 0.5, 100%), in which no motor seizure was observed, and the peak heart rate did not increase from the baseline.. Notes: EEG in channels 1 and 2, EMG in channel 3, and ECG in channel 4. The standard fronto-mastoid EEG electrode placements were used. The gain of the EEG amplifiers was set at 200 muV/cm, and the gain of the EMG and ECG amplifiers was set at 1,000 muV/cm.. Abbreviations: ECG, electrocardiogram; ECT, electroconvulsive therapy; EEG, electroencephalogram; EMG, electromyogram.
case_images: ndt-14-607Fig1.jpg
case_images: PMC5827465_01_ndt-14-607Fig1.jpg
case_images: f1-ndt-14-607
case_images: Although such stimulus levels produced mid-to-high-amplitude slow waves and apparent postictal suppression in the ictal electroencephalogram (EEG), neither motor seizures nor cardiovascular responses were observed (Figure 1).
case_images: Successful seizure induction following the third stimulation of the eleventh session (right unilateral ultrabrief pulse ECT, Low 0.25, 15%), in which a tonic-clonic motor seizure was first observed.. Notes: EEG in channels 1 and 2, EMG in channel 3, and ECG in channel 4. The standard frontomastoid EEG electrode placements were used. The gain of the EEG amplifiers was set at 200 muV/cm, and the gain of the EMG and ECG amplifiers was set at 1,000 muV/cm.. Abbreviations: ECG, electrocardiogram; ECT, electroconvulsive therapy; EEG, electroencephalogram; EMG, electromyogram.
case_images: ndt-14-607Fig2.jpg
case_images: PMC5827465_01_ndt-14-607Fig2.jpg
case_images: f2-ndt-14-607
case_images: A stimulus level of 15% enabled the induction of seizure activity, which involved tonic-clonic motor responses and was associated with low-to-mid-amplitude slow waves on EEG (Figure 2).
case_images: An adequate therapeutic seizure in the 16th session (right unilateral ultrabrief pulse ECT, Low 0.25, 100%), which was associated with high-amplitude slow waves and postictal suppression on the ictal electroencephalogram.. Notes: EEG in channels 1 and 2, EMG in channel 3, and ECG in channel 4. The standard frontomastoid EEG electrode placements were used. The gain of the EEG amplifiers was set at 200 muV/cm, and the gain of the EMG and ECG amplifiers was set at 1,000 muV/cm.. Abbreviations: ECG, electrocardiogram; ECT, electroconvulsive therapy; EEG, electroencephalogram; EMG, electromyogram.
case_images: ndt-14-607Fig3.jpg
case_images: PMC5827465_01_ndt-14-607Fig3.jpg
case_images: f3-ndt-14-607
case_images: In the subsequent sessions, the stimulus was increased to 100% (~6.7 times the ST), which produced adequate therapeutic seizures associated with high-amplitude slow waves and postictal suppression on the ictal EEGs (Figure 3).