It must be acknowledged that debates, concerns, poor nomenclature, confusing labels, and different interpretations of diagnoses and symptoms are not unusual things in psychiatry, even among professionals. In the 1970s, the famous American and British study of diagnostic criteria, showed that psychiatrists used the diagnosis of schizophrenia to describe vastly different patients. 5 The findings of the study were a significant cause of the paradigm shift of the DSM in its 3rd edition. More recently, the DSM-5 field trials suggested that the field of psychiatry continues to struggle with this problem. 6 Nonetheless, each edition of the DSM presents a new opportunity to discuss, refine, and improve our ability to communicate while emphasizing the importance of improving our common language.
Emergency physicians face delirious patients brought to them from the community on a regular basis. As such, it makes sense that they have been at the forefront of this issue and the American College of Emergency Physicians has recognized excited delirium as a condition since 2009. 7 The emergency physician literature points out that death from excited delirium also happens in hospitals and is not a unique consequence of law enforcement. There is no accepted definition. Reported symptoms include agitation, bizarre behavior, tirelessness, unusual strength, pain tolerance, noncompliance, attraction to reflective surfaces, stupor, fear, panic, hyperthermia, inappropriate clothing, tachycardia, tachypnea, diaphoresis, seizure, and mydriasis. Etiology is suspected to be from catecholaminergic endogenous stress-related catecholamines and exogenous catecholaminergic drugs. In particular is the importance of dopamine through the use of stimulants, specifically cocaine. The literature makes some reference to management, including recommendations aimed at keeping patients on one of their sides, using de-escalation techniques, and performing evaluation in quiet rooms.
We certainly condone and commend efforts to understand and define this condition in the medical literature. The indiscriminate use of “excited delirium” to represent all sorts of behaviors by nonmedical personnel warrants intelligent, relevant, and researched commentary by physicians. There are several potentially appropriate ways forward. First, psychiatry may decide that excited delirium is not a useful diagnosis in the clinical setting and does not belong in the DSM. That distinction in itself would be potentially useful to law enforcement officers, who might welcome the opportunity to create their own nomenclature and classification. Second, psychiatry may decide that excited delirium is not a useful diagnosis in the clinical setting but warrants a definition nonetheless, akin to the ways homelessness and extreme poverty are defined in the DSM; this definition could take into account the wide use of the term by nonclinicians. Third, psychiatry may decide that excited delirium warrants a clinical diagnosis that warrants a distinction and clarification from the current delirium diagnosis with the hyperactive specifier.
At this time, the status quo doesn’t protect or help clinicians in their respective fields of work. “Excited delirium” is routinely used by law enforcement officers without clear meaning. Experts have difficulty pointing out the poor or ill-intended use of the term without a precise or accepted definition to rely on. Some of the proposed criteria, such as “unusual strength,” have unclear scientific legitimacy. Some, such as agitation or bizarre behavior, often have different meanings to nonphysicians. Some, such as poor clothing, may facilitate discrimination. The current state allows some professionals to hide their limited attempts at de-escalation by describing the person of interest as having excited delirium. On the other hand, the current state also prevents well-intended officers from using proper terminology that is understood by others as describing a concerning behavior reliably.