# Co-occurrence of hypokinetic catatonia and hypoactive delirium: the rationale for a necessary subscale - URL: https://alisanburak.com/en/wcp-2026-posterler/ev0396 - Language: en - Last updated: not specified - Page title: Co-occurrence of hypokinetic catatonia and hypoactive delirium: the rationale for a necessary subscale | WCP 2026 Summary > Because delirium and hypokinetic catatonia frequently co-occur and their symptoms overlap substantially, the use of a brief subscale emphasizing catatonia-spec… This page was translated automatically from Turkish. [Read the original](https://alisanburak.com/wcp-2026-posterler/ev0396) This page is an AI-assisted Turkish summary of the study presented at the 26th World Congress of Psychiatry. The study belongs to the presenting authors; please refer to the original source when citing it. EV0396 E-PosterConsultation-Liaison PsychiatryReview # Co-occurrence of hypokinetic catatonia and hypoactive delirium: the rationale for a necessary subscale CO-EXISTING HYPOKINETIC CATATONIA WITH HYPOACTIVE DELIRIUM: THE CASE FOR A COMPULSORY SUB-SCALE Presenter: Maria Mariano Country: Pakistan Because delirium and hypokinetic catatonia frequently co-occur and their symptoms overlap substantially, the use of a brief subscale emphasizing catatonia-specific signs is recommended in patients with suspected delirium. The aim is to examine the clinical overlap between delirium and hypokinetic catatonia and to discuss the feasibility of a brief catatonia subscale for use in patients presenting with delirium. A literature review was conducted using PubMed and the Cochrane Library, with the search terms "catatoni* AND delirium" in PubMed and "catatonia AND delirium" in Cochrane. English-language publications discussing the overlap between hypokinetic catatonia and hypoactive delirium were included. Following screening with Rayyan, 13 of 260 studies were included. The findings showed that, in a prospective study of 264 patients with delirium, catatonia was identified in 61% of patients; hypoactive delirium occurred in 31% of patients with catatonia, compared with 19% of those without catatonia. Delirium was reported in 93% of patients with catatonia, and hypokinetic features were observed more frequently in cases where the two conditions co-occurred. Benzodiazepines and electroconvulsive therapy (ECT) led to improvement in some patients, but responses were inconsistent; some patients showed only a partial response to lorazepam, while others improved with treatment of the underlying cause of delirium. Mutism, staring, withdrawal, psychomotor agitation, and psychomotor retardation were identified as symptoms shared by both conditions. In conclusion, the authors state that the nonspecific nature of common symptoms creates diagnostic difficulties, that a brief catatonia subscale in cases of suspected delirium could improve early diagnosis and mortality outcomes, and that its sensitivity and specificity should be established through prospective studies. [View the original poster](https://cslide.ctimeetingtech.com/wcp26/attendee/eposter/file/546) How to cite this study APA 7: Saqib, A., & Mariano, M. (2026, September 23-26). Co-existing hypokinetic catatonia with hypoactive delirium: the case for a compulsory sub-scale [E-poster]. 26th WPA World Congress of Psychiatry (WCP 2026), Stockholm, Sweden. https://cslide.ctimeetingtech.com/wcp26/attendee/eposter/file/546 Vancouver: Saqib A, Mariano M. Co-existing hypokinetic catatonia with hypoactive delirium: the case for a compulsory sub-scale [e-poster]. 26th WPA World Congress of Psychiatry (WCP 2026); 2026 Sep 23-26; Stockholm, Sweden. 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