A systematic chart review of the naturalistic course and treatment of early-onset bipolar disorder in a child and adolescent psychiatry center

Abstract 

Studies on the naturalistic course of early-onset bipolar disorder are few and studies evaluating the efficacy of pharmacotherapy consist largely of open trials of thymoleptics and neuroleptics on small samples. The current study was undertaken to map the course of the disorder and the prevailing prescribing practice in early-onset bipolar disorder at a child and adolescent psychiatry center in India. A chart review of 139 children and adolescents (<16 years) with a DSM-IV diagnosis of bipolar disorder—mania was performed and the baseline demographic and clinical characteristics, episode characteristics, and treatment and follow-up details were collected and the data analyzed. The index episode remitted in all 133 (96%) subjects for whom the information was available. One hundred twenty-five (90%) subjects received thymoleptics for the index episode, of which lithium was used in 85%. Valproate was the next most commonly used thymoleptic (18%). Eighteen (13%) subjects received combination thymoleptics. Sixty-eight percent received neuroleptics either alone or as adjuncts in the acute phase. During the follow-up period, which ranged from 3 to 56 months (mean ± SD, 15 ± 14), 35% of subjects relapsed, 89% within the first 2 years. Twenty-eight percent of subjects relapsed despite being on apparently adequate doses of lithium. The limitations of the study are that it is retrospective in nature, and that structured diagnostic tools and rating scales were not used. We conclude that lithium is the most commonly used thymoleptic in early-onset bipolar disorder. Lithium alone or in combination with neuroleptics appears to have good efficacy in the acute phase of the disorder. The majority of relapses occurred in the first 2 years and the efficacy of currently used thymoleptics in prophylaxis is uncertain.