This kind of assessment would not have been possible by following strictly the DSM-IV structured clinical interview (SCID), which does not allow assessment of hypomania co-occurring during a major depressive episode.24-25 Hypomania
and depressive symptoms can mix, sometimes meeting DSM-IV-TR criteria for a major depressive episode. Dysphoric (mixed) hypomania (hypomania plus major depressive episode, no elevated mood) was not common among depressed outpatients (frequency found to be around 15%), and it was similar to mixed depression on bipolar validators, supporting a continuity between hypomania and depression.41, 49, 50 A strong association between bipolar (bipolar I and Inhibitors,research,lifescience,medical bipolar II) family history and mixed depression supported the bipolar nature of mixed depression of bipolar disorders and of Inhibitors,research,lifescience,medical major depressive disorder. Not only was bipolar family history
more common in mixed depression versus nonmixed depression, but also a dose-response relationship was found between number of hypomanic symptoms co-occurring during depression and bipolar family history loading in bipolar II disorder and major depressive disorder (ie, the higher the number of co-occurring hypomanic symptoms, the higher the bipolar family history loading). Mixed depression in major depressive disorder, compared with nonmixed major depressive disorder, had a bipolar family history and an age at onset closer to that of bipolar Inhibitors,research,lifescience,medical II disorder. Mixed depression was also validated by several factor analysis studies, showing a “hypomanic” factor superimposed on nonbipolar Inhibitors,research,lifescience,medical depression, and a factor structure of the hypomanic symptoms of mixed depression similar to that of hypomania occurring outside depression (apart from the elevated mood factor). Several selleck chem dimensional and categorical definitions of mixed depression were tested. It was more the number of cooccurring hypomanic symptoms than specific hypomanic symptoms, Inhibitors,research,lifescience,medical combinations of symptoms, and hypomanic factors that was found to be more strongly linked to bipolar validators. The most validated definition, on the basis of
its strong links to bipolar family history and bipolar II disorder (thus showing both a diagnostic validity and a diagnostic www.selleckchem.com/products/brefeldin-a.html utility, ie, a high positive predictive value for bipolar II disorder) was that of a major depressive episode plus three or more co-occurring hypomanic symptoms. Kraepelin, among the mixed states, described “excited Dacomitinib depression,” whose opposite polarity (manic) symptom was psychomotor agitation. The diagnostic validity of agitated depression was tested. Agitated depression was described in bipolar I disorder and in bipolar II disorder. In bipolar I disorder it was often a psychotic depression, while in bipolar II disorder it was often nonpsychotic. Agitated depression was found to be often mixed (ie, it had many concurrent manic/hypomanic symptoms). It was only when agitated depression was mixed that it was different from nonagitated depression on bipolar validators.
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