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Related Experiment Videos

Empirically derived MMPI profiles. Coronary bypass surgery.

C Clark1, H Klonoff

  • 1Department of Psychiatry, University of British Columbia, Vancouver, Canada.

The Journal of Nervous and Mental Disease
|February 1, 1988
PubMed
Summary

This study identified distinct psychological profiles in patients awaiting heart surgery using the MMPI-168. Post-surgery, these distress profiles improved significantly, indicating the positive impact of successful coronary bypass surgery.

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Area of Science:

  • Psychology
  • Cardiology
  • Psychometrics

Background:

  • Patients awaiting coronary bypass surgery often experience significant psychological distress.
  • Understanding these psychological states is crucial for patient management and recovery.

Purpose of the Study:

  • To identify and characterize distinct psychological profiles in patients before coronary bypass surgery.
  • To examine the changes in these profiles after successful surgical intervention.
  • To validate the derived psychological profiles using external measures of depression and anxiety.

Main Methods:

  • Cluster analysis of eight clinical scales from the Minnesota Multiphasic Personality Inventory-168 (MMPI-168) in 129 pre-surgical patients.
  • Follow-up assessments at 3, 12, and 24 months post-surgery.

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  • External validation using Beck Depression Inventory and State-Trait Anxiety Inventory scores.

    • Main Results:

    • Five distinct psychological profiles were identified: normal, marginal distress, conversion V, neurotic, and generalized distress.
    • These profiles maintained their distinctiveness post-surgery, although overall distress levels significantly decreased.
    • External validation confirmed the consistency of the MMPI-derived profiles with depression and anxiety measures.

    Conclusions:

    • Psychological distress profiles in patients undergoing coronary bypass surgery are identifiable and change significantly after successful intervention.
    • The derived MMPI profiles offer a valuable model for assessing the interplay between personality traits and the stress of cardiac surgery.
    • These findings support the development of targeted psychological interventions for cardiac patients.