Impact of Early Lactate Dosage Compared to CK for Diagnosis of a Suspected Seizure

We propose to carry out a prospective, observational, monocentric study at the CHU of Clermont-Ferrand. This is a descriptive analysis of the kinetics of the Creatine kinase and Lactates rates collected at the admission of a patient consulting for strong suspicion of convulsive seizure, and at 4 hours from the generalized seizure. A patient consulting the emergency department for suspected seizure will have an usual blood test at the admission in this context with notably ionogram, fasting glucose, venous gasometry. As the CHU purchased a venous and arterial gasometry reader for the emergency department, blood ionogram, Hb, lactates, HCO3-, pH are collected without delay. The Creatine kinase dosage will be collected in the usual way as a "tube bottom". As recommended by the French Society of Neurology, a new sample will be collected at 4 hours of seizure for a dosage of Creatine kinase. The determination of the lactates will be based on a "tube bottom". It is the emergency practitioner who will decide whether or not to include the patient in the descriptive study, assisted by a standardized survey, enumerating the high probability of generalized seizure orientation characteristics (patient history, treatments including antiepileptics, anamnesis, witnesses presence, evocative clinic) The study only recruited cases of strong suspicion of generalized seizure, beginning less than 4 hours to compare the kinetics of Creatine kinase and Lactates at admission and 4 hours of the generalized seizure.