Two cases of the acetonemic vomiting associated with epilepsy were studied with the systemic in travenous administration of small dose (1mg/kg) of thiopental sodium.
The following three EEG findings were carefully assessed following immediately the administration of thiopental sodium: (1) the induction and the distribution of the beta rhythms; (2) the behavior of the bilateral spike & wave discharges, present in the baseline EEG; (3) the appearence of focal elements. One case responded with a prompt induction of symmetrical beta rhythms, depression in the occurrence of the bilateral spike & wave discharges, and no focal features. Another case responded with a almost absent beta rhythms diffusely, persistence of the bilateral spike & wave discharges, and no focal features.
The former may be classified according to Lombroso's discription as having primary centrencephalictype (Primary Bilateral Synchrony), and the latter as having cortico-centrencephalic type.
