J Neuropsychiatry Clin Neurosci 13:243-247, May 2001
© 2001 American Psychiatric Press, Inc.
Presurgical Postictal and Acute Interictal Psychoses Are Differentially Associated With Postoperative Mood and Psychotic Disorders
Kousuke Kanemoto, M.D.,
Yoshiharu Kim,
Toshio Miyamoto, M.D. and
Jun Kawasaki, M.D.
Received January 13, 2000; revised April 4, 2000; accepted May 31, 2000. From the Kansai Regional Epilepsy Center, Utano National Hospital, National Institute of Mental Health, Kyoto, Japan. Address correspondence to Dr. Kanemoto, Utano National Hospital, Ukyo-ku, Narutaki, Ondoyama-cho 8, Kyoto, Japan. Email: PEH06237{at}nifty.ne.jp
The authors studied 52 patients who had undergone surgery because of intractable temporal lobe epilepsy. Investigation of postoperative psychiatric illnesses 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 confirmed between presurgical acute interictal psychosis and postsurgical psychotic disorder, as well as between presurgical postictal psychosis and postsurgical mood disorder. An excellent final outcome for postoperative mood disorder in contrast to a less favorable one for psychotic disorder was also suggested.
Key Words: Epilepsy • Neurosurgery • Psychosis
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