Presurgical postictal and acute interictal psychoses are differentially associated with postoperative mood and psychotic disorders

The authors studied 52 patients who had undergone surgery because of intrac table temporal lobe epilepsy. Investigation of postoperative psychiatric il lnesses focused on psychotic disorder (293.81 and 293.82) and mood disorder (293.83) due to a general medical condition diagnosed according to DSM-IV criteria. Presurgically, two episodic psychotic syndromes, acute interictal and postictal psychosis, were defined operationally. A correlation was con firmed between presurgical acute interictal psychosis and postsurgical psyc hotic disorder, as well as between presurgical postictal psychosis and post surgical mood disorder. An excellent final outcome for postoperative mood d isorder in contrast to a less favorable one for psychotic disorder was also suggested.