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Psychotic features and combat-associated PTSD

M B Hamner1

  • 1Ralph H. Johnson VA Medical Center, Department of Psychiatry, Medical University of South Carolina, Charleston 29401, USA.

Depression and Anxiety
|January 1, 1997
PubMed
Summary

Psychotic symptoms in posttraumatic stress disorder (PTSD) are often linked to comorbid mood disorders, not necessarily PTSD severity. Further research is needed on this PTSD and depression link.

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Area of Science:

  • Psychiatry
  • Clinical Psychology
  • Neuroscience

Background:

  • Psychotic symptoms are occasionally reported in chronic posttraumatic stress disorder (PTSD).
  • These symptoms may be related to core PTSD symptoms or comorbid conditions like depression or substance abuse.
  • Understanding the relationship between PTSD and psychosis is crucial for effective treatment.

Purpose of the Study:

  • To investigate the prevalence and characteristics of psychotic symptoms in combat-related PTSD patients.
  • To determine if psychotic features are associated with PTSD symptom severity or specific comorbid disorders.
  • To explore the potential shared diathesis between PTSD and mood disorders.

Main Methods:

  • A prospective study of 25 combat-associated PTSD patients.
  • Utilized Structured Clinical Interview for DSM-III-R with psychotic screen (SCID-P), Clinician Administered PTSD Scale (CAPS), and Impact of Events Scale (IES).
  • Assessed for psychotic symptoms and comorbid psychiatric conditions.

Main Results:

  • 36% of patients reported psychotic symptoms, frequently comorbid with major depressive episode, bipolar disorder, substance abuse, panic disorder, or phobias.
  • All but one patient with psychotic features also met criteria for major depressive episode; none had a primary psychotic disorder.
  • No significant differences in CAPS or IES scores were found between patients with and without psychotic features, suggesting psychosis is not directly tied to PTSD symptom severity.

Conclusions:

  • Psychotic features in PTSD may be secondary to comorbid mood disorders, particularly major depressive episode.
  • PTSD and mood disorders, including psychotic depression, might share a common underlying vulnerability (diathesis).
  • Further research is warranted to elucidate the complex relationship between PTSD, psychosis, and mood disorders.

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