title: National Institute of Mental Health research roundtable on prepubertal bipolar disorder.
abstract: OBJECTIVE
  A research roundtable meeting was convened at the National Institute of Mental Health on April 27, 2000, to discuss the existing controversial areas in the diagnosis of bipolar disorder in prepubertal children.
  
  
  METHODS
  Invited clinicians and researchers with expertise on bipolar disorder in children were asked to share and discuss their perspectives on diagnostic issues for bipolar disorder in prepubertal children.
  
  
  RESULTS
  The group reached agreement that diagnosis of bipolar disorder in prepubertal children is possible with currently available psychiatric assessment instruments. In addition to phenotypes that fit DSM-IV criteria for bipolar I and bipolar II, participants agreed on the existence of other phenotypic possibilities that do not meet diagnostic criteria. Bipolar not otherwise specified (NOS) was recommended as a "working diagnosis" for the non-DSM-IV phenotype.
  
  
  CONCLUSIONS
  Bipolar disorder exists and can be diagnosed in prepubertal children. In children who present with both the DSM-lV and non-DSM-IV phenotypes (i.e., those given a diagnosis of bipolar-NOS), assessment should include careful evaluation of all behaviors that are impairing. Moreover, these children should be monitored systematically to explore stability and change over time in diagnosis and impairment.
mesh_terms: D000367:Age Factors; D001714:Bipolar Disorder / Q000145:classification / Q000175:diagnosis*; D002648:Child; D005260:Female; D020022:Genetic Predisposition to Disease; D006801:Humans; D008297:Male; D010641:Phenotype; D011569:Psychiatric Status Rating Scales