The Authors, in the debate concerning the most appropriate anesthesiologic treatment in thromboendarterectomy surgery, relate their experience using three different types of general anaesthesia under electroencephalographic monitoring. The results are commented correlating data with some physiopathologic considerations. Carotid surgery, in particular the operation of thromboendarterectomy (TEA), during the last few years has assumed features and frequency typical of a routine procedure. Nevertheless, if from a surgical point of view the criteria of choice of the patients and the surgical techniques have been well standardized, in the anesthesiologic field the discussion between the supporters of the locoregional anaesthesia on one side and of the general anaesthesia on the other side is still open. By this report we mean to bring a contribution to the debate correlating our anesthesiologic files with some physiopathologic notations on the theme.