Early Detection of Bipolar Spectrum Disorders in High-Risk ChildrenEarly Detection of Bipolar Spectrum Disorders in High-Risk Children https://pediatricsnationwide.org/wp-content/themes/corpus/images/empty/thumbnail.jpg 150 150 Abbie Roth Abbie Roth https://pediatricsnationwide.org/wp-content/uploads/2021/02/062019ds5821_abbie-profile-new.jpg
- March 03, 2015
- Abbie Roth
A new study finds key symptoms are associated with the development of bipolar disorder among children of parents with the condition.
“Mental health practitioners should carefully assess for short episodes of manic symptoms, major depression and disruptive behavior disorders in high-risk children, as these are risk factors for the future onset of bipolar disorder,” says David Axelson, MD, medical director of Behavioral Health at Nationwide Children’s Hospital and senior author on the study. “This may be particularly important if medication is going to be used for treating mood or behavioral symptoms in the child, because some medications might increase the risk of developing mania or psychotic symptoms in someone who is already at very high risk for developing bipolar disorder. Prescribers might choose different medication options or use lower doses and monitor for problems more closely.”
The cumulative rate of bipolar spectrum disorders at age 21 was 23 percent in the high-risk group compared to 3.2 percent in the comparison group. The mean age of onset for a bipolar spectrum disorder was 12 years, with the earliest manic episode being documented at 8 years, highlighting the importance of monitoring subthreshold symptoms for early intervention.
“Most children who have a parent with bipolar disorder will have a diagnosable psychiatric disorder, such as attention-deficit disorder, oppositional defiant disorder, an anxiety disorder or depression, at some point during their youth,” says Dr. Axelson, who is also a professor of clinical psychiatry at The Ohio State University. “However, most children who have a parent with bipolar disorder do not develop bipolar disorder.”
Among the study’s high-risk children who did develop bipolar disorder, nearly all had identifiable mood episodes and other psychiatric disorders before the onset of full-fledged bipolar illness.
“Short, distinct episodes of manic symptoms were the most specific predictor of developing bipolar disorder in high-risk offspring,” Dr. Axelson says. “But so far, many children with these short manic episodes have not progressed to full-fledged bipolar disorder.”
This study is part of the Pittsburgh Bipolar Offspring Study (BIOS), which is the largest study to date of children of parents with bipolar disorder. Unique to BIOS is the assessment of children for subthreshold episodes of manic symptoms. This latest publication confirms and extends the baseline findings and describes how mood episodes develop in an effort to aid in early diagnosis on the basis of those subthreshold episodes.
The longitudinal study followed high-risk children and demographically matched offspring of community parents. Follow-up interviews were completed in 91 percent of the offspring with a mean follow-up duration of 6.8 years. The initial and follow-up interviews were conducted using the Structured Clinical Interview for DSM-IV (parents) and the Schedule for Affective Disorders and Schizophrenia for School-Age Children (children). Follow-ups focused on the assessment of the interval since the previous interview.
“I am continuing to collaborate with researchers on the Pittsburgh Bipolar Offspring Study,” Dr. Axelson says. “We expect to find more exciting results that will impact the diagnosis and treatment of high-risk children as we follow the participants into young adulthood.”
Axelson D, Goldstein B, Goldstein T, Monk K, Yu H, Hickey MB, Sakolsky D, Diler R, Hafeman D, Merranko J, Iyengar S, Brent D, Kupfer D, Birmaher B. Diagnostic precursors to bipolar disorder in offspring of parents with bipolar disorder: A longitudinal study. American Journal of Psychiatry. 2015 Mar 3. doi: 10.1176/appi.ajp.2014.14010035.
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