Neuroinflammation in Obsessive-Compulsive Disorder: Sydenham Chorea, Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections, and Pediatric Acute Onset Neuropsychiatric Syndrome

Psychiatr Clin North Am. 2023 Mar;46(1):69-88. doi: 10.1016/j.psc.2022.11.004.

Abstract

Sydenham chorea (SC), pediatric autoimmune neuropsychiatric disorders associated with streptococcal infections (PANDAS) and pediatric acute-onset neuropsychiatric syndrome (PANS) are postinfectious neuroinflammatory diseases that involve the basal ganglia and have obsessive-compulsive disorder as a major manifestation. As is true for many childhood rheumatological diseases and neuroinflammatory diseases, SC, PANDAS and PANS lack clinically available, rigorous diagnostic biomarkers and randomized clinical trials. Research on the treatment of these disorders depend on three complementary modes of intervention including: treating the symptoms, treating the source of inflammation, and treating disturbances of the immune system. Future studies should aim to integrate neuroimaging, inflammation, immunogenetic, and clinical data (noting the stage in the clinical course) to increase our understanding and treatment of SC, PANDAS, PANS, and all other postinfectious/immune-mediated behavioral disorders.

Keywords: Obsessive compulsive disorder; Pediatric acute-onset neuropsychiatric syndrome; Pediatric autoimmune neuropsychiatric disorder associated with streptococcal infections.

Publication types

  • Review

MeSH terms

  • Autoimmune Diseases* / complications
  • Autoimmune Diseases* / diagnosis
  • Autoimmune Diseases* / drug therapy
  • Child
  • Chorea* / complications
  • Chorea* / diagnosis
  • Humans
  • Inflammation / complications
  • Neuroinflammatory Diseases
  • Obsessive-Compulsive Disorder* / complications
  • Streptococcal Infections* / complications
  • Streptococcal Infections* / diagnosis
  • Streptococcal Infections* / drug therapy

Supplementary concepts

  • Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal infections
  • Pediatric acute-onset neuropsychiatric syndrome