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In psychiatry, catastrophic schizophrenia or schizocaria is an obsolete term for a rare〔Robert Jean Campbell, Campbell's Psychiatric Dictionary, 2009, page 872〕 and acute form of schizophrenia leading directly to a severe and unremitting chronic psychosis〔Richard P. Bentall, Reconstructing schizophrenia, 1992, page 62〕 (the long term occurrence of psychosis) and deterioration of the personality.〔 Catastrophic schizophrenia was thought to be the most severe subtype of schizophrenia, as it had "an acute onset and rapid decline into a chronic state without remission". Catastrophic schizophrenia was also referred to as schizocaria, which was defined by Mauz as a psychosis that caused the absolute destruction of the core of one's being. The term "catastrophic schizophrenia" has fallen out of use due to a number of reasons, including advances in psychiatric treatment, which led to a significant decline in patients that fit the diagnosis as their symptoms did not reach the severity of catastrophic schizophrenia, along with modern refinement of the definition and subtypes of schizophrenia.〔 This term has not been included in any version of the DSM. In modern terms, catastrophic schizophrenia would likely be defined as 'acute-onset chronic schizophrenia with poor prognosis'. ==History== Schizophrenia evolved from Kraepelin's dementia praecox, which was first defined in 1893. Using dementia praecox as a base, Eugen Bleuler defined and differentiated subtypes of schizophrenia at the turn of the century. He stated that catastrophic schizophrenia was characterized by an acute onset of a severe psychosis, followed with little improvement by a severe chronic psychosis lasting until death.〔Irving B. Weiner, Donald K. Freedheim, George Stricker & Thomas A. Widiger, Handbook of Psychology: Clinical psychology, 2003, page 74〕 Young adults (aged 16–25) were at the highest risk of developing catastrophic schizophrenia. It was almost entirely exclusive to upper class and intellectuals.〔 Other risk factors included difficulty adapting to change, individualism, and introversion.〔 E.B. Strauss stated that schizophrenia could come about in two ways: either catastrophically or through a series of 'attacks'.〔 Strauss used catastrophic to refer to schizophrenia that ran a rapidly progressing and continuous course.〔 According to Strauss, catastrophic schizophrenia took a similar course to catatonic schizophrenia and hebephrenia, with all three ending in the total collapse into psychosis within two to four years.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Catastrophic schizophrenia」の詳細全文を読む スポンサード リンク
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