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Cyclothymic OCD: a distinct form?

E G Hantouche1, J Angst, C Demonfaucon

  • 1Mood Center, Department of Psychiatry, Pitié-Salpêtrière Hospital, 47 Bd de l'Hôpital, 75013 Paris, France. hantouch@noos.fr

Journal of Affective Disorders
|June 5, 2003
PubMed
Summary
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Bipolar disorder is a common comorbidity in patients with obsessive-compulsive disorder (OCD), particularly those with severe symptoms. Recognizing and treating this "cyclothymic OCD" is crucial for better patient outcomes.

Area of Science:

  • Psychiatry
  • Clinical Psychology

Background:

  • Obsessive-compulsive disorder (OCD) research often overlooks bipolar disorder comorbidity.
  • Severe or treatment-resistant OCD patients frequently present with undiagnosed bipolar disorder.

Purpose of the Study:

  • To investigate the prevalence of bipolar comorbidity in a large sample of patients with OCD.
  • To explore the clinical characteristics and treatment implications of bipolar comorbidity in OCD.

Main Methods:

  • Systematic exploration of bipolar comorbidity in 628 patients with OCD (French Association of patients suffering from OCD and psychiatric out-patients).
  • Utilized structured self-rated questionnaires for major depression, hypomania, and mania (DSM-IV criteria), and mood disorder assessments (Hypomania checklist, Cyclothymic Temperament).

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Main Results:

  • 11% of the combined sample met DSM-IV criteria for bipolar disorder (3% BP-I, 8% BP-II).
  • Dimensional assessment revealed 30% scored high on hypomania and 50% were classified as cyclothymic.
  • Cyclothymic OCD patients exhibited more severe OCD symptoms, episodic courses, higher rates of mood episodes, suicide attempts, psychiatric admissions, and poorer response to antidepressants.

Conclusions:

  • Bipolar comorbidity is highly prevalent and under-recognized in OCD patients.
  • "Cyclothymic OCD" may represent a distinct subtype requiring specific research and clinical attention.