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Q&A: Neuropsychiatric Disorders in Bipolar Disorder

Q: Which is the most common neuropsychiatric disorder in bipolar disorder?

A: Bipolar disorder is associated with both medical and psychiatric comorbidity. Disparate medical conditions include, but are not limited to, obesity, diabetes, metabolic syndrome, and thyroid disorders. In addition, individuals with bipolar disorder are differentially affected by several neurological disorders. The neurological disorders commonly encountered are migraine, tremors, movement disorders, and in some cases, dementing disorders. During the past decade, several clinical and epidemiological studies have reported on medical comorbidity in general and more specifically neurological comorbidity.

Results from these studies indicate that migraine headache is prevalent and may differentially affect individuals with bipolar disorder relatives to people with major depressive disorder. Moreover, it appears as though migraine headaches in a bipolar individual are associated with a more severe illness course as indicated by earlier age of onset; more anxiety comorbidity; higher use of polytherapy, disability, and welfare benefits; decreased quality of life; and increased utilization of services. It is currently estimated that the lifetime migraine prevalence rate of bipolar disorder ranges from 15% to 77%. The highest reported prevalence rate of reported migraine is in individuals with bipolar spectrum disorders (eg, bipolar II disorder). An interesting observation is that individuals with unipolar disorder and migraine headaches appear to cluster more “bipolar traits” (eg, irritability, seasonal variation, and family history of migraines). Available neurobiological and treatment data indicate that bipolar disorder and migraine are discreet conditions with overlapping substrates. It has been hypothesized that bipolar disorder and comorbid migraine comprise a distinct subphenotype of bipolar disorder. Practitioners are encouraged to screen their patients for the presence/history of migraine headaches.

Dr McIntyre is associate professor of psychiatry and pharmacology at the University of Toronto and head of the Mood Disorders Psychopharmacology Unit at the University Health Network, Toronto, Canada. Dr McIntyre is involved in multiple research endeavors, which primarily aim to characterize the association between mood disorders and medical comorbidity. This research involves elucidating metabolic adverse events associated with the use of psychotropic medications, the impact of medical comorbidity on the course of mood disorders, and the effect of glucose homeostasis on neurocognition.

Q&A: Neuropsychiatric Disorders in Bipolar Disorder

This article originally appeared in:

Psychiatric Times

It is reprinted here with permission.


Laurie Martin

 

APA Reference
McIntyre,, R. (2011). Q&A: Neuropsychiatric Disorders in Bipolar Disorder. Psych Central. Retrieved on December 18, 2018, from https://pro.psychcentral.com/qa-neuropsychiatric-disorders-in-bipolar-disorder/

 

Scientifically Reviewed
Last updated: 23 Mar 2011
Last reviewed: By John M. Grohol, Psy.D. on 23 Mar 2011
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