Early recognition of neuroleptic malignant syndrome during traumatic brain injury rehabilitation.

Neuroleptic malignant syndrome is a rare disorder that manifests with hyperthermia, muscle rigidity and autonomic instability. Presented is a case series of individuals with traumatic brain injury and agitation who, when treated with neuroleptics, developed neuroleptic malignant syndrome. Although the incidence of this syndrome is rare, it is associated with significant morbidity and mortality. The onset of symptoms inconsistent with the patient's current level of recovery should alert the clinician to consider other possible diagnosis and failure to distinguish the features of neuroleptic malignant syndrome from post-traumatic agitation will delay appropriate intervention for this potentially life-threatening disorder.