A 75-year-old man had several syncopes with severe skull contusions (figure 1). These events were not preceded by vegetative symptoms such as nausea, dizziness, or palpitations. Holter-EKG was normal and an EEG was performed for suspected epilepsy, during which complete atrioventricular block without ventricular escape-rhythm occurred (figure 2A). Six seconds later, the EEG showed progressive s...