The high prevalence of "soft" bipolar (II)
features in atypical depression
by
Perugi G, Akiskal HS, Lattanzi L, Cecconi D,
Mastrocinque C, Patronelli A, Vignoli S, Bemi E
Institute of Psychiatry,
University of Pisa, Italy.
Compr Psychiatry 1998 Mar-Apr; 39(2):63-71

ABSTRACT

Seventy-two percent of 86 major depressive patients with atypical features as defined by the DSM-IV and evaluated systematically were found to meet our criteria for bipolar II and related "soft" bipolar disorders; nearly 60% had antecedent cyclothymic or hyperthymic temperaments. The family history for bipolar disorder validated these clinical findings. Even if we limit the diagnosis of bipolar II to the official DSM-IV threshold of 4 days of hypomania, 32.6% of atypical depressives in our sample would meet this conservative threshold, a rate that is three times higher than the estimates of bipolarity among atypical depressives in the literature. By definition, mood reactivity was present in all patients, while interpersonal sensitivity occurred in 94%. Lifetime comorbidity rates were as follows: social phobia 30%, body dysmorphic disorder 42%, obsessive-compulsive disorder 20%, and panic disorder (agoraphobia) 64%. Both cluster A (anxious personality) and cluster B (e.g., borderline and histrionic) personality disorders were highly prevalent. These data suggest that the "atypicality" of depression is favored by affective temperamental dysregulation and anxiety comorbidity, clinically manifesting in a mood disorder subtype that is preponderantly in the realm of bipolar II. In the present sample, only 28% were strictly unipolar and characterized by avoidant and social phobic features, without histrionic traits.

OCD
Options
Social phobia
Panic disorder
Atypical depression
Retarded depression
Body dysmorphic disorder
Dysthymia and cyclothymia
Dysthymia: undertreatment
Oversleeping and overeating
Atypical depression: treatment
The atypical subtype of depression
Atypical depression and personality
Atypical depression and noradrenaline
Atypical depression : biological markers
MAOIs v tricyclic antidepressants for atypical depressives

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