Thoracic aorta atherosclerosis burden index predicts coronary artery disease in patients undergoing transesophageal

Alexandra Frogoudaki1, John Barbetseas, Constadina Aggeli

  • 1Thriasion General Hospital, Magoula, Greece. afrogou@otenet.gr

Atherosclerosis
|May 26, 2007
PubMed

Insights

The novel thoracic aortic atherosclerosis burden index (TAABI) accurately predicts coronary artery disease (CAD). A TAABI greater than 6 indicates a high likelihood of significant CAD, aiding in risk assessment.

Area of Science:

  • Cardiovascular Medicine
  • Medical Imaging
  • Atherosclerosis Research

Background:

  • Thoracic aortic atherosclerosis (TAA) severity correlates with coronary artery disease (CAD) extent.
  • Quantitative assessment of TAA is crucial for predicting CAD.
  • Existing methods may not fully capture the relationship between TAA and CAD.

Purpose of the Study:

  • To develop and validate a novel atherosclerotic index for quantifying TAA.
  • To establish a quantitative relationship between TAA severity and CAD extent.
  • To assess the predictive value of the novel index for identifying significant CAD.

Main Methods:

  • Transesophageal echocardiography (TEE) and coronary angiography were performed on 246 patients.
  • A grading system assessed TAA extent in individual thoracic aorta segments.
  • The thoracic aortic atherosclerosis burden index (TAABI) was calculated as the sum of segment gradings.

Main Results:

  • The TAABI demonstrated high specificity and sensitivity in predicting CAD.
  • A TAABI > 6 was associated with a 16-fold increased probability of CAD.
  • This threshold yielded 88% specificity and 81% sensitivity for CAD prediction.

Conclusions:

  • A TAABI value exceeding 6 reliably predicts the presence of significant CAD.
  • Patients with minimal TAA have a low risk of developing angiographically significant CAD.
  • The TAABI serves as an effective tool for risk stratification in patients with suspected CAD.
Abstract

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