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Predictive relationship between depression and physical functioning after coronary surgery

Friederike Kendel1, Götz Gelbrich, Markus Wirtz

  • 1Institute of Medical Psychology, Charité-Universitätsmedizin Berlin, Germany. friederike.kendel@charite.de

Archives of Internal Medicine
|October 27, 2010
PubMed

Insights

Depression negatively impacts physical functioning after coronary artery bypass graft (CABG) surgery. Patients with systolic heart failure are particularly vulnerable to this decline, highlighting the need for mental health support post-surgery.

Area of Science:

  • Cardiology
  • Psychiatry
  • Health Psychology

Background:

  • Depression is common in patients undergoing coronary artery bypass graft (CABG) surgery.
  • Depression is linked to poorer health outcomes in CABG patients.

Purpose of the Study:

  • To examine the relationship between depression and physical functioning in CABG patients.
  • To identify if depression predicts changes in physical functioning over time.

Main Methods:

  • 883 patients undergoing CABG completed the Patient Health Questionnaire (PHQ) for depression and the 36-Item Short-Form Health Survey (SF-36) for physical functioning.
  • Assessments occurred pre-surgery (T1), 2 months post-surgery (T2), and 1 year post-surgery (T3).
  • Cross-lagged path analysis and multigroup comparisons were used.

Main Results:

  • Increased depressive symptoms predicted decreased physical functioning at both 2 months (β = -0.15) and 1 year (β = -0.17) post-surgery.
  • This effect was more pronounced in patients with systolic heart failure (left ventricular ejection fraction [LVEF] ≤45%) between 2 months and 1 year post-surgery (β = -0.30).
  • Physical functioning did not predict changes in depression.

Conclusions:

  • Diagnosis and treatment of depression are crucial for CABG patients.
  • Patients with systolic heart failure and depression are at higher risk for physical functioning decline after CABG.
  • Targeted interventions for depression may improve physical recovery in this population.
Abstract

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