Differentiating PANDAS and non-PANDAS disorders

Not unlike autism spectrum disorder (ASD), more cases of obsessive-compulsive disorder (OCD) and/or tic disorders are being diagnosed in prepubertal children. Also, not unlike ASD, the cause of most cases is unclear. Frustrated families seeking answers frequently think we don't care. We care. We just do not have the answers. Much debate has focused on the purported role of group A streptococcus (GAS) in causing or precipitating the so-called Pediatric Autoimmume Neuropsychiatric Disorders Associated with Streptococcal infections (PANDAS). Using objective criteria to define at least the most typical clinical constellation could benefit future investigations of etiology, natural history, and management.