Pediatric Autoimmune Neuropsychiatric Disorders Associated With Streptococcal Infections

2004 
Objective: The purpose of this study was to describe the clinical characteristics of a novel group of patients with obsessive-compulsive disorder (OCD) and tic disorders, designated as pediatric autoimmune neuropsychiatric disorders associated with streptococcal (group A β-hemolytic streptococcal [GABHS]) infections (PANDAS). Method: The authors conducted a systematic clinical evaluation of 50 children who met all of the following five working diagnostic criteria: presence of OCD and/or a tic disorder, prepubertal symptom onset, episodic course of symptom severity, association with GABHS infections, and association with neurological abnormalities. Results: The children’s symptom onset was acute and dramatic, typically triggered by GABHS infections at a very early age (mean=6.3 years, SD=2.7, for tics; mean=7.4 years, SD=2.7, for OCD). The PANDAS clinical course was characterized by a relapsing-remitting symptom pattern with significant psychiatric comorbidity accompanying the exacerbations; emotional labi...
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