Comparison of manic symptoms across age groups suggested that irritability is a key feature of BD with an onset in childhood , activity is the most prominent in adolescent-onset BD and pressure of speech is more characteristic of adult-onset BD .
Conclusions Despite frequent discussion of similarities and differences in phenomenology of mania presenting in different age groups , systematic research is lacking and studies are still required to reliably establish whether the frequency and severity of manic symptoms varies .
Background In the last two decades , there has been a significant increase in the diagnosis of Bipolar Disorder ( BD ) in children .
The notion of prepubertal onsets of BD is not without controversy , with research ers debating whether paediatric cases have a distinct symptom profile or follow a different illness trajectory from other forms of BD .
The latter issue is difficult to address without long-term prospect i ve follow-up studies .
However , in the interim , it is useful to consider the phenomenology observed in groups of cases with different ages of onset and particularly to compare manic symptoms in children diagnosed with BD compared to cases presenting with BD in adolescence and adulthood .
This review systematic ally explores the phenomenology of manic or hypomanic episodes in groups defined by age at onset of BD ( children , adolescents and adults ; or combined age groups e.g. children and adolescents versus adults ) .
Four-year prospective outcome and natural history of mania in children with a prepubertal and early adolescent bipolar disorder phenotype.
BACKGROUND Diagnosis of child mania has been contentious . OBJECTIVE To investigate natural history and prospect i ve validation of the existence and long-episode duration of mania in children . DESIGN Four-year prospect i ve longitudinal study of 86 subjects with intake episode mania who were all assessed at 6 , 12 , 18 , 24 , 36 , and 48 months . The phenotype was defined as DSM-IV bipolar I disorder ( manic or mixed ) with at least 1 cardinal symptom ( elation and /or gr and iosity ) to ensure differentiation from attention-deficit/hyperactivity disorder . Parent and child informants were separately interviewed , by highly experienced research nurses , using the Washington University in St Louis Kiddie Schedule for Affective Disorders and Schizophrenia ( WASH-U-KSADS ) . A Children 's Global Assessment Scale score of 60 or less was needed to establish definite impairment . Treatment was by subjects ' community practitioners . SETTING Research unit in a university medical school . PARTICIPANTS Subjects were obtained from psychiatric and pediatric sites by consecutive new case ascertainment , and their baseline age was 10.8 + /- 2.7 years . Onset of the baseline episode  was 7.4 + /- 3.5 years . ( Data are given as mean + /- SD . ) MAIN OUTCOME MEASURES Episode duration , weeks ill , recovery/relapse rates , and outcome predictors . RESULTS Prospect i ve episode duration of manic diagnoses , using onset of mania as baseline date , was 79.2 + /- 66.7 consecutive weeks . Any bipolar disorder diagnosis occurred during 67.1 % + /- 28.5 % of total weeks , during the 209.4 + /- 3.3 weeks of follow-up . Subjects spent 56.9 % + /- 28.8 % of total weeks with mania or hypomania ( unipolar or mixed ) , and 38.7 % + /- 28.8 % of these were with mania . Major or minor depression and dysthymia ( unipolar or mixed ) occurred during 47.1 % + /- 30.4 % of total weeks . Polarity switches occurred 1.1 + /- 0.7 times per year . Low maternal warmth predicted faster relapse after recovery from mania ( chi(2 ) = 13.6 , P = .0002 ) , and psychosis predicted more weeks ill with mania or hypomania ( F(1,80 ) = 12.2 , P = .0008 ) . Pubertal status and sex were not predictive . ( Data are given as mean + /- SD . ) CONCLUSIONS These findings vali date the existence , long-episode duration , and chronicity of child mania . Differences from the natural history of adult bipolar disorder are discussed
Comparison of manic symptoms across age groups suggested that irritability is a key feature of BD with an onset in childhood , activity is the most prominent in adolescent-onset BD and pressure of speech is more characteristic of adult-onset BD .
Conclusions Despite frequent discussion of similarities and differences in phenomenology of mania presenting in different age groups , systematic research is lacking and studies are still required to reliably establish whether the frequency and severity of manic symptoms varies .
Background In the last two decades , there has been a significant increase in the diagnosis of Bipolar Disorder ( BD ) in children .
The notion of prepubertal onsets of BD is not without controversy , with research ers debating whether paediatric cases have a distinct symptom profile or follow a different illness trajectory from other forms of BD .
The latter issue is difficult to address without long-term prospect i ve follow-up studies .
However , in the interim , it is useful to consider the phenomenology observed in groups of cases with different ages of onset and particularly to compare manic symptoms in children diagnosed with BD compared to cases presenting with BD in adolescence and adulthood .
This review systematic ally explores the phenomenology of manic or hypomanic episodes in groups defined by age at onset of BD ( children , adolescents and adults ; or combined age groups e.g. children and adolescents versus adults ) .