Lethal catatonia, a life-threatening febrile neuropsychiatric disorder, was widely reported in this country and abroad before the introduction of modern psychopharmacologic treatments. A comprehensive review of the world literature indicates that although the prevalence of lethal catatonia may have declined, it continues to occur, now reported primarily in the foreign literature. Lack of recognition probably accounts for the scarcity of recent American reports. Furthermore, lethal catatonia is a syndrome rather than a specific disease and may develop in association with both functional and organic illnesses. Familiarity with the clinical features and varied etiologies is essential for effective management of this catastrophic reaction.
We describe a case of recurrent, life-threatening, catatonic stupor, without evidence of any associated medical, toxic or mental disorder. This case provides support for the inclusion of a separate category of “unspecified catatonia” in the Diagnostic and Statistical Manual of Mental Disorders 5th edition (DSM-5) to be used to classify idiopathic cases, which appears to be consistent with Kahlbaum’s concept of catatonia as a distinct disease state. But beyond the limited, cross-sectional, syndromal approach adopted in DSM-5, this case more importantly illustrates the prognostic and therapeutic significance of the longitudinal course of illness in differentiating cases of catatonia, which is better defined in the Wernicke-Kleist-Leonhard classification system. The importance of differentiating cases of catatonia is further supported by the efficacy of antipsychotics in treatment of this case, contrary to conventional guidelines.
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