Excited Delirium Syndrome
Also written as: ExDS — Excited Delirium Syndrome
A controversial medical and forensic term describing an acute state of extreme agitation, hyperthermia, and altered mental status, historically associated with sudden in-custody death.
Full Definition
Excited Delirium Syndrome (ExDS) has been used in emergency medicine, forensic pathology, and law enforcement contexts to describe a clinical picture characterised by severe psychomotor agitation, elevated body temperature, unusual strength, insensitivity to pain, and sudden cardiovascular collapse. The term is highly contested: major psychiatric and medical bodies, including the American Psychiatric Association, do not recognise it as a formal diagnosis. Editors working in emergency psychiatry must be aware that the term carries significant medicolegal and political weight, particularly in documentation relating to restraint-related deaths. Documents may require careful handling to reflect the contested nature of the diagnosis, and editorial notes should flag its use for review by a subject-matter expert.
Usage
Usage note: Use with caution. The term is contested and not a DSM-5 or ICD-11 diagnosis. Flag for author review if encountered in clinical documents. 'Excited delirium' and 'Excited Delirium Syndrome' are distinct terms and should not be used interchangeably without clinical oversight.
In Context
- "The coroner's report cited excited delirium syndrome as a contributing factor, though reviewers noted the diagnosis remains formally unrecognised by the APA." — Forensic/coroner report
- "Editors should flag any uncritical use of 'excited delirium syndrome' as a diagnostic label in clinical records and query the author for clarification." — Editorial style guidance