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Recurrent unipolar mania: A comparative, cross-sectional study.

Ravi Philip Rajkumar1

  • 1Department of Psychiatry, Jawaharlal Institute of Postgraduate Medical Education and Research, Dhanvantari Nagar, Pondicherry 605 006, India.

Comprehensive Psychiatry
|January 17, 2016
PubMed
Summary

Patients with recurrent mania alone (unipolar mania) showed no significant differences from those with bipolar disorder (mania and depression) in demographic, clinical, or risk factors. This suggests unipolar mania may not be a distinct subtype.

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Area of Science:

  • Psychiatry
  • Clinical Psychology
  • Neuroscience

Background:

  • A subset of patients experience recurrent mania without depression, potentially differing from typical bipolar disorder.
  • Existing literature on unipolar mania versus bipolar disorder presents inconsistent findings.
  • Understanding these differences is crucial for accurate diagnosis and treatment.

Purpose of the Study:

  • To compare demographic, clinical, and risk factor profiles of patients with recurrent mania (with and without depression).
  • To investigate potential distinctions between unipolar mania and bipolar disorder (mania and depression).

Main Methods:

  • Bipolar I disorder patients (n=66) were categorized into unipolar mania (MA) and bipolar (mania and depression, MD) groups.
  • Comorbidities were assessed using the Mini International Neuropsychiatric Interview (MINI).

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  • Genetic and environmental risk factors were evaluated using the Diagnostic Interview for Genetic Studies (DIGS), Childhood Trauma Questionnaire (CTQ), and a custom questionnaire.

    • Main Results:

    • The bipolar (mania and depression) group exhibited higher rates of lifetime suicide attempts, antidepressant use, and catatonic symptoms.
    • Childhood overcrowding showed a tentative association with the presence of depressive episodes.
    • No other significant demographic, clinical, or risk factor differences were identified between the MA and MD groups.

    Conclusions:

    • The findings suggest that unipolar mania may not represent a distinct disorder or subtype of bipolar disorder.
    • This conclusion is preliminary, based solely on clinical and demographic data.
    • Further research is needed to definitively characterize unipolar mania.