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A Magnetic Resonance Imaging-based Computational Protocol for Analysis of Plaque Morphology and Hemodynamics in Patients with Carotid Artery Stenosis
09:36

A Magnetic Resonance Imaging-based Computational Protocol for Analysis of Plaque Morphology and Hemodynamics in Patients with Carotid Artery Stenosis

Published on: August 12, 2025

Carotid stenosis and coronary artery bypass grafting

Marcelo Pereira da Rosa1, Vera Lúcia Portal

  • 1Instituto de Cardiologia, Fundação Universitária de Cardiologia, Porto Alegre, RS, Brazil. verap.pesquisa@cardiologia.org.br

Revista Da Associacao Medica Brasileira (1992)
|June 22, 2011
PubMed

Insights

Carotid stenosis (CS) affects 17.4% of patients undergoing coronary artery bypass grafting (CABG). Clinically relevant CS and chronic renal failure (CRF) independently predict mortality in these patients.

Area of Science:

  • Cardiovascular Surgery
  • Vascular Surgery
  • Nephrology

Background:

  • Coronary artery bypass grafting (CABG) is a common procedure.
  • Carotid stenosis (CS) is a potential comorbidity in patients undergoing CABG.
  • Identifying risk factors for mortality in CABG patients is crucial.

Purpose of the Study:

  • To determine the prevalence of carotid stenosis (CS) in patients scheduled for elective coronary artery bypass grafting (CABG).
  • To identify independent predictors of mortality among these patients.

Main Methods:

  • A cohort study included 393 patients undergoing scheduled CABG.
  • Carotid arteries were assessed for stenosis using color Doppler ultrasound prior to CABG.
  • Morbidity and mortality were tracked during hospitalization.
  • Logistic regression analysis was employed to identify independent predictors of mortality.

Main Results:

  • The prevalence of carotid stenosis (CS) was 17.4%.
  • Clinically relevant CS (defined as >50% stenosis) was a significant independent predictor of mortality (p = 0.001).
  • Chronic renal failure (CRF) was also identified as an independent predictor of mortality (p = 0.03).

Conclusions:

  • Carotid stenosis (CS) is highly prevalent in patients undergoing CABG.
  • Both CS (>50%) and chronic renal failure (CRF) are independent predictors of mortality in this patient population.
  • These findings highlight the importance of assessing for CS and CRF in CABG candidates.
Abstract

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