Coronary anatomy and left ventricular ejection fraction in patients with type 2 diabetes admitted for elective

Peter Ammann1, Hanspeter Brunner-La Rocca, Thomas Fehr

  • 1Division of Cardiology, Kantonsspital St. Gallen, St. Gallen, Switzerland. peter.ammann@kssg.ch

Insights

Diabetic patients have significantly worse coronary artery disease and heart function compared to non-diabetics. Early cardiac screening is crucial for individuals with diabetes mellitus to detect heart problems.

Area of Science:

  • Cardiology
  • Endocrinology
  • Vascular Biology

Background:

  • Diabetes mellitus (DM) is linked to more severe coronary artery disease (CAD).
  • Diabetic patients face a 2-4 times higher risk of myocardial infarction and mortality.
  • Understanding the cardiac implications of DM is critical for patient outcomes.

Purpose of the Study:

  • To analyze and compare coronary anatomy and left ventricular ejection fraction (LVEF) in diabetic versus non-diabetic patients.
  • To identify cardiac risk factors associated with diabetes in patients undergoing coronary angiography.
  • To determine if DM independently predicts advanced coronary heart disease and left ventricular dysfunction.

Main Methods:

  • Coronary angiography data from 6,234 patients were analyzed.
  • Left ventricular ejection fraction was assessed in 4,767 patients (76.5%).
  • Diabetic (n=641) and non-diabetic patient groups were compared for CAD severity, LVEF, and risk factors.

Main Results:

  • Diabetic patients were older and had higher rates of hypertension.
  • Three-vessel disease was significantly more prevalent in diabetic patients (44.7% vs. 25.4%).
  • Reduced left ventricular ejection fraction was also significantly associated with diabetes (58.4% vs. 63.9%).

Conclusions:

  • Advanced coronary heart disease and left ventricular dysfunction are highly prevalent in diabetic patients.
  • These cardiac issues are present independently of age and other cardiovascular risk factors.
  • Cardiac assessment in diabetic patients should include screening for left ventricular dysfunction alongside diabetic control.

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