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Preoperative anxiety and depressive symptoms predicted higher incidence of delirium post coronary artery bypass graft surgery

  • 0Critical Care, Cardiovascular Nursing, College of Nursing and Midwifery, Mohammed Bin Rashid University, Dubai, United Arab Emirates.
Nursing in Critical Care +

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November 25, 2024

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November 25, 2024

View abstract on PubMed

Summary

This summary is machine-generated.

Preoperative anxiety and depressive symptoms (ADS) significantly increase the risk of delirium after coronary artery bypass graft (CABG) surgery. Managing these psychological factors may reduce delirium incidence and shorten hospital stays for CABG patients.

Area Of Science

  • Cardiology
  • Psychiatry
  • Critical Care Medicine

Background

  • Anxiety, depressive symptoms, and delirium are prevalent in patients undergoing coronary artery bypass graft (CABG) surgery.
  • Postoperative delirium is linked to adverse outcomes, including extended mechanical ventilation and prolonged length of stay (LoS).
  • While risk factors for delirium are documented, the specific impact of preoperative anxiety and depressive symptoms (ADS) remains under-researched.

Purpose Of The Study

  • To investigate the association between preoperative anxiety and depressive symptoms (ADS) and the incidence of postoperative delirium in patients undergoing elective CABG.
  • To identify predictors of postoperative delirium in the context of preoperative psychological distress.

Main Methods

  • A prospective cohort study involving 400 patients undergoing elective CABG in Jordan.
  • Preoperative ADS were assessed using the Hospital Anxiety and Depression Scale.
  • Postoperative delirium was screened twice daily using the Confusion Assessment Method for the ICU.

Main Results

  • 40% of patients (160/400) developed postoperative delirium.
  • Independent predictors for delirium included older age, female sex, surgery duration of 7 hours or more, and preoperative anxiety and/or depression.
  • Delirium occurrence was an independent predictor of longer hospital/ICU length of stay.

Conclusions

  • Preoperative anxiety and depressive symptoms are significant risk factors for developing delirium after CABG surgery.
  • Managing preoperative ADS may be a key strategy to reduce delirium incidence and shorten LoS in CABG patients.
  • Nurses play a crucial role in identifying and managing preoperative psychological distress to mitigate postoperative delirium risk.

Keywords:

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