Evidence-Based Reviews

Not all mood swings are bipolar disorder

Current Psychiatry. 2011 February;10(2):38-B

References

1. Axelson D, Birmaher BJ, Brent D, et al. A preliminary study of the Kiddie Schedule for Affective Disorders and Schizophrenia for School-Age Children mania rating scale for children and adolescents. J Child Adolesc Psychopharmacol. 2003;13(4):463-470.

2. Youngstrom EA, Birmaher B, Findling RL. Pediatric bipolar disorder: validity, phenomenology, and recommendations for diagnosis. Bipolar Disord. 2008;10(1 Pt 2):194-214.

3. Diagnostic and statistical manual of mental disorders, 4th ed, text rev. Washington, DC: American Psychiatric Association; 2000.

4. Kowatch RA, Fristad MA, Findling RL, et al. Clinical manual for the management of bipolar disorder in children and adolescents. Arlington, VA: American Psychiatric Publishing, Inc.; 2008.

5. Conners CK. Conners’ Parent Rating Scale Long Form (CPRS-R:L) North Tonawanda, NY: Multi-Health Systems, Inc.; 1997.

6. Martel MM. Research review: a new perspective on attention-deficit/hyperactivity disorder: emotion dysregulation and trait models. J Child Psychol Psychiatry. 2009;50(9):1042-1051.

7. Steiner H, Remsing L. and the Work Group on Quality Issues. Practice parameter for the assessment and treatment of children and adolescents with oppositional defiant disorder. J Am Acad Child Adolesc Psychiatry. 2007;46(1):126-141.

8. Dodge KA, Cole JD. Social-information-processing factors in reactive and proactive aggression in children’s peer groups. J Pers Soc Psychol. 1987;53(6):1146-1158.

9. Connor DF, Steingard RJ, Cunningham JA, et al. Proactive and reactive aggression in referred children and adolescents. Am J Orthopsychiatry. 2004;74(2):129-136.

10. Connor DF, Chartier KG, Preen EC, et al. Impulsive aggression in attention-deficit/hyperactivity disorder: symptom severity, co-morbidity, and attention-deficit/hyperactivity disorder subtype. J Child Adolesc Psychopharmacol. 2010;20(2):119-126.

11. Mick E, Spencer T, Wozniak J, et al. Heterogeneity of irritability in attention-deficit/hyperactivity disorder subjects with and without mood disorders. Biol Psychiatry. 2005;58(7):576-582.

12. Orvaschel H. Schizophrenia and Affective Disorders Schedule for children—Epidemiological Version (KSADS-E). Fort Lauderdale, FL: Nova Southeastern University; 1995.

13. Pappadopulos E, Woolston S, Chait A, et al. Pharmacotherapy of aggression in children and adolescents: efficacy and effect size. J Can Acad Child Adolesc Psychiatry. 2006;15(1):27-39.

14. Achenbach TM, Howell CT, McConaughy SH, et al. Six-year predictors of problems in a national sample: IV. Young adult signs of disturbance. J Am Acad Child Adolesc Psychiatry. 1998;37(7):718-727.

15. Birmaher B, Khetarpal S, Brent D, et al. The Screen for Child Anxiety Related Emotional Disorders (SCARED): scale construction and psychometric characteristics. J Am Acad Child Adolesc Psychiatry. 1997;36:545-553.

16. Merikangas KR, He JP, Burstein M, et al. Lifetime prevalence of mental disorders in U.S. adolescents: results from the National Comorbidity Survey Replication—Adolescent Supplement (NCS-A). J Am Acad Child Adolesc Psychiatry. 2010;49(10):980-989.

17. Youngstrom EA, Duax J. Evidence-based assessment of pediatric bipolar disorder, part I: base rate and family history. J Am Acad Child Adolesc Psychiatry. 2005;44(7):712-717.

18. Birmaher B, Axelson D, Strober M, et al. Clinical course of children and adolescents with bipolar spectrum disorders. Arch Gen Psychiatry. 2006;63(2):175-183.

19. Kaufman J, Birmaher B, Brent D, et al. Schedule for Affective Disorders and Schizophrenia for School-Age Children-Present and Lifetime Version (K-SADS-PL): initial reliability and validity data. J Am Acad Child Adolesc Psychiatry. 1997;36(7):980-988.

20. Birmaher B, Axelson D. Course and outcome of bipolar spectrum disorder in children and adolescents: a review of the existing literature. Dev Psychopathol. 2006;18(4):1023-1035.

21. Birmaher B, Axelson D, Strober M, et al. Comparison of manic and depressive symptoms between children and adolescents with bipolar spectrum disorders. Bipolar Disord. 2009;11(1):52-62.

22. Birmaher B, Axelson D, Goldstein B, et al. Four-year longitudinal course of children and adolescents with bipolar spectrum disorders: the Course and Outcome of Bipolar Youth (COBY) study. Am J Psychiatry. 2009;166(7):795-804.

A review of pharmacotherapy for aggression in children found the largest effects for methylphenidate for aggression in ADHD (mean effect size=0.9, combined N=844).¹³ Our clinical experience has been that pediatric patients with ADHD or ODD with ADHD often have high levels of reactive aggression that presents as mood swings, and aggressively treating ADHD often results in improved mood and other ADHD symptoms.

Figure 2 Symptoms that differentiate BD from BD with comorbid ADHD

ADHD: attention-deficit/hyperactivity disorder; BD: bipolar disorder
Source: Reference 11

Anxiety disorders

The estimated prevalence of child and adolescent anxiety disorders is 10% to 20%¹⁴; in our sample the prevalence was 15%. These disorders include GAD, separation anxiety disorder, social phobias, posttraumatic stress disorder (PTSD), and obsessive-compulsive disorder. Often, children with GAD worry excessively and become upset during transitions when things don’t proceed as they expect, with resultant angry outbursts and mood swings. Mood swings and difficulty sleeping are common in children with anxiety disorders or BD. Anxiety disorders often will be missed unless specific triggers of the mood swings or angry outbursts—as well as differentiating symptoms such as excessive fear, worry, and psychosomatic symptoms—are assessed.

Clinical Point

Anxiety disorders often will be missed unless triggers of mood swings are assessed

In our clinical experience, simply asking a child if he or she is anxious is not sufficient to uncover an anxiety disorder. Although the CPRS-L:R will screen for anxiety disorders, we have found that the Self-Report for Childhood Anxiety Related Disorders (SCARED) developed by Birmaher et al¹⁵ is more specific. This tool can be used in patients age ≥8. The parent and child versions of the SCARED contain 41 items that measure 5 factors:

general anxiety
separation anxiety
social phobia
school phobia
physical symptoms of anxiety.

The SCARED takes 5 minutes to fill out and is available in parent and child versions.

Clinical Point

Many patients in our sample had a mood disorder secondary to the neurologic effects of alcohol on the developing brain

Secondary mood disorders

Many patients in our sample had a mood disorder secondary to the neurologic effects of alcohol on the developing brain. For more about maternal alcohol use, fetal alcohol spectrum disorders, and mood swings, visit this article at CurrentPsychiatry.com.

What BD looks like in children

In our sample, 12% of patients referred for mood swings were diagnosed with bipolar I disorder (BDI), bipolar II disorder (BDII), or bipolar disorder, not otherwise specified (BD-NOS). In the United States, lifetime prevalence of BDI and BDII in adolescents age 13 to 17 is 2.9%.¹⁶ No large epidemiologic studies have looked at the lifetime prevalence of BD in children age <13.

How often a clinician sees BD in children and adolescents largely depends on the type of setting in which he or she practices. Although in the general population BD is relatively rare compared with other childhood psychiatric disorders, on child/adolescent inpatient units it is common to find that 30% to 40% of patients have BD.¹⁷

Clinical Point

For bipolar I disorder patients in the COBY study, mean age of onset was 9±4.1 years

The best longitudinal study to date of the phenomenology, comorbidity, and outcome of BD in children and adolescents is the National Institute of Mental Health-funded Course and Outcome of Bipolar Youth study (COBY).¹⁸ In this ongoing, longitudinal study, 413 youths (age 7 to 17) with BDI (N=244), BDII (N=28), or BD-NOS (N=141) were rigorously diagnosed using state-of-the-art measures, including the Kiddie Schedule for Affective Disorders and Schizophrenia for School-Age Children-Present version¹⁹ and re-evaluated every 9.4 months for 4 years. When organizing this study, investigators found that DSM-IV criteria for BD-NOS were too vague to be useful and developed their own criteria (Table 2).¹⁸

For BDI patients in the COBY study, the mean age of onset for bipolar symptoms was 9.0±4.1 years and the mean duration of illness was 4.4±3.1 years. Researchers reported that at the 4-year assessment approximately 70% of patients with BD recovered from their index episode, and 50% had at least 1 syndromal recurrence, particularly depressive episodes.²⁰ Analyses of these patients’ weekly mood symptoms showed that they had syndromal or subsyndromal symptoms with numerous changes in symptoms and shifts of mood polarity 60% of the time, and psychosis 3% of the time. During this study, 20% of BDII patients progressed to BDI, and 25% of BD-NOS patients converted to BDI or BDII.

Further analysis of the COBY data revealed that onset of mood symptoms preceded onset of clear bipolar episodes by an average of 1.0±1.7 years. Depression was the most common initial and most frequent episode for adolescents; mood lability was seen more often in childhood-onset and adolescents with early-onset BD. Depressed children had more severe irritability than depressed adolescents, and older age was associated with more severe and typical mood symptomatology.²¹