PANDAS
Also written as: PANDAS — Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal infections
A controversial condition where streptococcal infections allegedly trigger sudden onset of obsessive-compulsive disorder or tics in children.
Full Definition
PANDAS (Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal infections) is a hypothesized condition in which Group A streptococcal infections are thought to trigger autoimmune responses that lead to sudden onset or dramatic worsening of obsessive-compulsive disorder (OCD), tics, or other neuropsychiatric symptoms in children. The proposed mechanism involves molecular mimicry, where antibodies against streptococcal antigens cross-react with brain tissue, particularly in the basal ganglia. The diagnosis requires specific criteria including abrupt onset of symptoms, association with streptococcal infection, and episodic course. However, PANDAS remains controversial within the medical community, with ongoing debate about its validity as a distinct clinical entity.
Usage
Usage note: Use all capitals as an acronym. Note the controversial nature of this diagnosis in clinical contexts.
In Context
- "The family reported sudden onset of severe OCD symptoms following a strep throat infection, raising concerns for PANDAS." — Psychiatric consultation note
- "The neurologist emphasized that PANDAS diagnosis requires careful consideration of alternative explanations for symptom onset." — Clinical assessment summary