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Anhedonia as predictor of clinical events after acute coronary syndromes: a 3-year prospective study

Michel Leroy1, Gwenole Loas, Fernando Perez-Diaz

  • 1Veneux les Sablons and University Department of Psychiatry, Hôpital Pinel and CHU d'Amiens, 80044 Amiens cedex 01, France.

Comprehensive Psychiatry
|November 26, 2009
PubMed

Insights

Anhedonia, the inability to feel pleasure, independently predicts poor outcomes after acute coronary syndromes (ACS). This finding highlights anhedonia as a crucial factor in cardiac event prognosis, even more so than depression alone.

Area of Science:

  • Cardiology
  • Psychiatry
  • Clinical Psychology

Background:

  • Depression following acute coronary syndromes (ACS) is a known risk factor for adverse cardiac events.
  • The role of anhedonia, characterized by a reduced capacity to experience pleasure, in ACS prognosis remains understudied.
  • This study investigates the impact of anhedonia on long-term outcomes in patients hospitalized for ACS.

Purpose of the Study:

  • To examine the prognostic value of anhedonia in patients who have experienced ACS.
  • To compare the predictive power of anhedonia versus depression on cardiac events.
  • To assess both dimensional and categorical aspects of anhedonia in relation to clinical outcomes.

Main Methods:

  • 291 consecutively admitted ACS patients completed anhedonia (Chapman Physical Anhedonia Scale) and depression scales at baseline.
  • Anhedonia was assessed dimensionally (continuous score) and categorically (using cutoff scores of 23 or 29).
  • Patients were followed for 3 years, with outcomes including severe cardiac events (mortality, myocardial infarction) and broader clinical events.

Main Results:

  • Anhedonia, both dimensional and categorical, was associated with poorer prognosis and predicted clinical events.
  • Anhedonia emerged as the sole predictor of severe cardiac events and overall clinical events after adjusting for covariates.
  • Categorical anhedonia (PAS >23) independently predicted severe cardiac events, with a 2.18 hazard ratio for death/MI compared to non-anhedonic individuals.

Conclusions:

  • Both dimensional and categorical anhedonia independently predict severe cardiac events and clinical events following ACS.
  • Anhedonia is a significant prognostic factor for adverse outcomes in ACS patients.
  • These findings underscore the importance of assessing anhedonia in cardiac patient care.
Abstract

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