Bipolar disorder with comorbidities

The mean age of onset of bipolar disorder is 20, although onset may occur in early childhood to the mid-40s.1 If the onset of symptoms occurs after 60 years of age, the condition is probably secondary to medical causes. Early onset of bipolar disorder is associated with greater comorbidities, more mood episodes, a greater proportion of days depressed, and greater lifetime risk of suicide attempts, compared to bipolar disorder with a later onset. Substance abuse and anxiety disorders are more common in patients with an early onset. Patients with bipolar disorder also have higher rates of suicidal thinking, suicidal attempts, and completed suicides. 

Offspring of parents with bipolar disorder have an almost three fold increased risk for developing a mental disorder, and a fourfold risk for an affective disorder, as compared to the offspring of parents with no mental disorder (LaPalme et ah, 1997). Families of patients with early-onset bipolar disorder have higher than expected rates of substance abuse, unipolar depression, antisocial personality, and comorbid bipolar disorder with ADHD. Biederman et al. (2000) have concluded that this comorbid bipolar plus ADHD condition is familial, as evidenced by the fact that the two conditions... 

Bipolar I disorder affects men and women equally bipolar II seems to be more common in women. Rapid cycling and mixed mania occur more often in women. Individuals with bipolar disorder commonly have another psychiatric disease with 78% to 85% reporting another Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR) diagnosis during their lifetime. The most common comorbid conditions include anxiety, substance abuse, and eating disorders.2... 

Patients with bipolar disorder have a high risk of suicide. Factors that increase that risk are early age at disease onset, high number of depressive episodes, comorbid alcohol abuse, personal history of antidepressant-induced mania, and family history of suicidal behavior.15 In those with bipolar disorder, 1 of 5 suicide attempts are lethal, in contrast to 1 of 10 to 1 of 20 in the general population. 

Personality disorders are inflexible and maladaptive patterns of behavior that deviate markedly from expectations of society. These patterns are stable over time, pervasive and rigid, and lead to distress or impairment in the individual s life. Onset is in adolescence or early adulthood.1 Personality disorders and bipolar disorder may be comorbid, and patients with personality disorders may have mood symptoms. The two diagnoses are distinguished, however, by the predominance of mood symptoms and the episodic course of bipolar disorder, in contrast to the stability and persistence of the behavioral patterns of personality disorders. 

Lifetime prevalence rates of psychiatric comorbidity co-existing with bipolar disorder are 42% to 50%.16 Comorbidities, especially substance abuse, make it difficult to establish a definitive diagnosis and complicate treatment. Comorbidities also place the patient at risk for a poorer outcome, high rates of suicidal-ity, and onset of depression.2 Psychiatric comorbidities include ... 

Divalproex sodium is comprised of sodium valproate and valproic acid. The delayed-release and extended-release formulations are converted in the small intestine into valproic add, which is the systemically absorbed form. It was developed as an antiepileptic drug, but also has efficacy for mood stabilization and migraine headaches. It is FDA-approved for the treatment of the manic phase of bipolar disorder. It is generally equal in efficacy to lithium and some other drugs for bipolar mania. It has particular utility in bipolar disorder patients with rapid cycling, mixed mood features, and substance abuse comorbidity. Although not FDA-approved for relapse prevention, studies support this use, and it is widely prescribed for maintenance therapy. Divalproex can be used as monotherapy or in combination with lithium or an antipsychotic drug.31... 

Biederman, J., Mick, E., Prince,., Bostic, J.O., Wilens, T.E., Spencer, T., Wozniak, J., and Faraone, S.V. (1999a) Systematic chart review of the pharmacologic treatment of comorbid attention deficit hyperactivity disorder in youth with bipolar disorder. J Child Adolesc Psychopharmacol 9 247—256. 

If relapse does occur, it should first be determined whether the patient was compliant with treatment. If the patient was not compliant, antidepressant medication should resume. If the patient was compliant and had been previously responding to the medication (without significant side effects), the existence of ongoing stressors (e.g., conflict, abuse) or comorbid medical or psychiatric disorders should be considered (anxiety disorder, ADHD, substance abuse, dysthymia, bipolar disorder, eating disorder). 

Although adolescents who discontinue maintenance treatment have a high (92%) rate of relapse compared to those who maintain lithium treatment (37%) (Strober et al., 1990), reliable continuation of medication is a serious problem in bipolar adolescents, particularly those with comorbid behavior disorders (Carlson et al., 2000a). 

Bipolar Disorder and Aggression Comorbidity with Conduct Disorder... 

Among patients with bipolar disorder, schizophrenia and major depression the prevalence of comorbid substance use disorders may be as high as 50%. Substance use disorders are usually associated with Axis [I (personality) disorders, poor treatment compliance and poorer response to pharmacotherapy exclusion or at least adequate diagnosis of these patients is therefore essential for clinical trials. 

Depressive and anxious symptoms are frequently associated with schizophrenia, but this does not necessarily mean that they fulfill the diagnostic criteria for a comorbid anxiety or affective disorder. Nevertheless, depressed mood, anxious mood, guilt, tension, irritability, and worry frequently accompany schizophrenia. These various symptoms are also prominent features of major depressive disorder, psychotic depression, bipolar disorder, schizoaffective disorder, organic dementias, and childhood... 

It is critical to clarify the diagnosis of ADHD in individuals with these symptoms. Inattention and distractibility can be symptoms of an anxiety disorder, depression, or bipolar disorder. - In other cases, these anxiety or mood disorders can coexist with ADHD, just as learning deficiencies and conduct or oppositional disorders are common comorbid conditions. The presence of multiple comorbid conditions, particularly conduct or oppositional disorder, may increase the likelihood of ADHD chronicity. ... 

Approaches for treating bipolar disorder in special populations (e.g., comorbid medical or psychiatric disorders, pregnancy, or breastfeeding) are found in Table 68-9. Patients with comorbid medical conditions or concomitant substance abuse, those over 65 years of age, and pregnant patients may require different treatment approaches. Approximately 20% to 50% of women with bipolar disorder relapse postpartum therefore prophylaxis with mood stabilizers is recommended immediately postpartum to decrease the risk of relapse. ... 

TABLE 68—9. Approaches to Treating Bipolar Disorder in Special Populations and with Comorbidities... 

Perugi G, Frare F, Toni C, Tusini G, Vannucchi G, Akiskal HS. Adjunctive valproate in panic disorder patients with comorbid bipolar disorder or otherwise resistant to standard antidepressants a 3-year open follow-up study. Eur Arch Psychiatry Clin Neurosci 2010 260(7) 553-60. 

Hegarty CE, Foland-Ross LC, Narr KL, Sugar CA, McGough JJ, Thmpson PM, et al. ADHD comorbidity can matter when assessing cortical thickness abnormalities in patients with bipolar disorder. Bipolar Disord 2012 14(8) 843-55. 

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