Antidepressant-associated mood elevations in bipolar II disorder compared with bipolar I disorder and major depressive disorder: a systematic review and meta-analysis.
ABSTRACT Antidepressant-associated manic and hypomanic episodes have been reported in bipolar I disorder but are rare in major depressive disorder (MDD). Several lines of evidence suggest that bipolar II disorder is a distinct illness from bipolar I disorder and MDD. The risk of antidepressant-associated mood elevations (AAME) in bipolar II disorder relative to bipolar I disorder and MDD is unknown.
We conducted a computer-aided MEDLINE search encompassing the dates 1949 to February 2008, using the keywords antidepressant and mania, antidepressant and hypomania, antidepressant and bipolar, fluoxetine and bipolar, fluvoxamine and bipolar, sertraline and bipolar, paroxetine and bipolar, citalopram and bipolar, escitalopram and bipolar, venlafaxine and bipolar, mirtazapine and bipolar, bupropion and bipolar, monoamine oxidase inhibitor and bipolar, phenelzine and bipolar, tranylcypromine and bipolar, tricyclic and bipolar, imipramine and bipolar, amitriptyline and bipolar, nortriptyline and bipolar, and desipramine and bipolar.
All prospective English-language studies, including randomized, controlled trials (RCTs), open-label studies, and naturalistic treatment reports, were eligible for inclusion. We located 13 studies, including 7 RCTs, that reported rates of antidepressant-associated mood elevations in bipolar I disorder versus bipolar II disorder, and 5, including 4 RCTs, that reported rates in bipolar II disorder versus MDD.
Data were combined to estimate mean switch rates and subjected to meta-analysis to determine the relative risks of antidepressant-associated mood elevations in bipolar I disorder versus bipolar II disorder and in bipolar II disorder versus MDD.
The mean rates of antidepressant-associated mood elevations in studies comparing bipolar I disorder and bipolar II disorder were 14.2% and 7.1%, respectively, in acute trials (less than 16 weeks), and 23.4% and 13.9%, respectively, in maintenance studies. The mean rates in reports comparing bipolar II disorder and MDD were 8.1% and 1.5%, respectively, in acute trials, and 16.5% and 6.0%, respectively, in maintenance studies. The relative risk (RR) of antidepressant-associated mood elevations was greater in bipolar I disorder than bipolar II disorder (RR = 1.78, 95% CI = 1.24 to 2.58, p = .002), and higher in bipolar II disorder than MDD (RR = 2.77, 95% CI = 1.26 to 6.09, p = .01). Mood elevations occurred almost exclusively into hypomania in MDD and bipolar II disorder, while patients with bipolar I disorder experienced manias and hypomanias with similar frequencies.
The risk of antidepressant-associated mood elevations in bipolar II disorder is intermediate between that in bipolar I disorder and MDD.
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ABSTRACT: Background The bipolar II disorder has been recognized a mental disorder distinctive from the bipolar I disorder, showing the stability of diagnosis in prospective studies. However, the characterization of the bipolar II disorder still remains under investigation. Methods The present study was conducted on consecutively admitted bipolar II inpatients diagnosed by DSM-IV-TR to delineate the clinical features. Results The types of initial mood disorders of the bipolar II inpatients were divided into four groups, i.e., major depressive episode (MDE), hypomanic episode (HME), and dysthymic and cyclothymic disorders. Seventy-one percent of all the patients belonged to the MDE group, a half of which underwent the first HME following the first MDE. The number of patients that exhibited the HME within one year after the first MDE was the highest in a widely distributed interval of years between the first MDE and the first HME. The cyclothymic disorder group was relatively young at the onset and was more prone to attempt suicide. Moreover, there might be a complex connection with other psychiatric disorders, such as anxiety disorders, in the longitudinal course of the bipolar disorder. Limitation The present study was carried out on a limited number of patients admitted to one hospital. The data are partly based on the retrospective information from the patients and their relatives. The generalization of the results requires further studies. Conclusion The bipolar II disorder could be divided into heterogeneous groups in the longitudinal course. Hence, paying attention to the heterogeneity in clinical practice and a study of the disorder are required.Journal of Affective Disorders 10/2014; 168:363–366. DOI:10.1016/j.jad.2014.07.023 · 3.71 Impact Factor
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ABSTRACT: Bipolar spectrum disorders are frequently under-recognized and/or misdiagnosed in various settings. Several influential publications recommend the routine screening of bipolar disorder. A systematic review and meta-analysis of accuracy studies for the bipolar spectrum diagnostic scale (BSDS), the hypomania checklist (HCL-32) and the mood disorder questionnaire (MDQ) were performed.Methods The Pubmed, EMBASE, Cochrane, PsycINFO and SCOPUS databases were searched. Studies were included if the accuracy properties of the screening measures were determined against a DSM or ICD-10 structured diagnostic interview. The QUADAS-2 tool was used to rate bias.ResultsFifty three original studies met inclusion criteria (N=21,542). At recommended cutoffs, summary sensitivities were 81%, 66% and 69%, while specificities were 67%, 79% and 86% for the HCL-32, MDQ, and BSDS in psychiatric services, respectively. The HCL-32 was more accurate than the MDQ for the detection of type II bipolar disorder in mental health care centers (P=0.018). At a cutoff of 7, the MDQ had a summary sensitivity of 43% and a summary specificity of 95% for detection of bipolar disorder in primary care or general population settings.LimitationsMost studies were performed in mental health care settings. Several included studies had a high risk of bias.Conclusions Although accuracy properties of the three screening instruments did not consistently differ in mental health care services, the HCL-32 was more accurate than the MDQ for the detection of type II BD. More studies in other settings (for example, in primary care) are necessary.Journal of Affective Disorders 10/2014; 172. DOI:10.1016/j.jad.2014.10.024 · 3.71 Impact Factor
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ABSTRACT: To examine the efficacy and safety of short-term and long-term use of antidepressants in the treatment of bipolar disorder.Neural Regeneration Research 11/2013; 8(31):2962-74. DOI:10.3969/j.issn.1673-5374.2013.31.009 · 0.23 Impact Factor