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Stroke after coronary artery bypass: incidence, predictors, and clinical outcome

S C Stamou1, P C Hill, G Dangas

  • 1Section of Cardiac Surgery, Department of Surgery, Washington Hospital Center, Washington, DC, USA. sxs3@mhg.edu

Stroke
|July 7, 2001
PubMed

Insights

Stroke after coronary artery bypass grafting (CABG) is a serious risk. Preoperative and postoperative factors can predict increased stroke risk, impacting patient morbidity and mortality.

Area of Science:

  • Cardiovascular Surgery
  • Neurology
  • Critical Care Medicine

Background:

  • Postoperative stroke is a significant adverse event following coronary artery bypass grafting (CABG).
  • Understanding the factors contributing to stroke after CABG is crucial for patient outcomes.

Purpose of the Study:

  • To identify risk factors, prevalence, and prognostic implications of stroke in patients undergoing CABG.
  • To analyze preoperative and postoperative variables associated with stroke after cardiac surgery.

Main Methods:

  • A retrospective analysis of 16,528 consecutive patients who underwent CABG.
  • Logistic regression analysis was employed to identify predictors of postoperative stroke.

Main Results:

  • The prevalence of postoperative stroke was 2% (333 patients).
  • Significant risk factors included chronic renal insufficiency, recent myocardial infarction, prior cerebrovascular accident, carotid artery disease, hypertension, diabetes, advanced age (>75 years), left ventricular dysfunction, low cardiac output syndrome, and atrial fibrillation.
  • Postoperative stroke was associated with prolonged hospital stay and increased in-hospital mortality (14% vs. 2.7%).

Conclusions:

  • Stroke following CABG is linked to substantial short-term morbidity and mortality.
  • Preoperative and postoperative clinical factors effectively predict the risk of stroke after CABG.
Abstract

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