Systolic compression of bypass grafts

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Updated: Aug 8, 2026

Surgical Porcine Model of Chronic Myocardial Ischemia Treated by Exosome-laden Collagen Patch and Off-pump Coronary Artery Bypass Graft
05:25

Surgical Porcine Model of Chronic Myocardial Ischemia Treated by Exosome-laden Collagen Patch and Off-pump Coronary Artery Bypass Graft

Published on: September 15, 2023

Raed Aqel1, Ritesh Gupta, Gilbert Zoghbi

  • 1University of Alabama at Birmingham, Birmingham V.A. Medical Center, Division of Cardiology, Department of Medicine, Birmingham, Alabama, USA.

The Journal of Invasive Cardiology
|May 4, 2006
PubMed

Insights

Myocardial bridging, the compression of coronary arteries during the heart

Area of Science:

  • Cardiovascular Surgery
  • Interventional Cardiology
  • Cardiac Anatomy

Background:

  • Myocardial bridging typically affects native coronary arteries.
  • Systolic compression of bypass grafts is an uncommon phenomenon.
  • Understanding graft dynamics is crucial for surgical outcomes.

Observation:

  • Two cases of dynamic systolic compression in coronary artery bypass grafts were observed.
  • One case involved a vein graft to the right coronary artery.
  • The second case involved a left internal mammary artery graft to the left anterior descending artery.

Findings:

  • Demonstrated systolic compression within bypass grafts, mimicking myocardial bridging.
  • Highlighted the potential for dynamic mechanical complications in grafts.
  • Correlated graft compression with specific coronary artery targets.

Implications:

  • Suggests that bypass grafts can undergo similar intramyocardial compression as native arteries.
  • May necessitate considering graft compression in diagnosing graft dysfunction.
  • Informs surgical planning and graft selection for coronary artery bypass grafting.

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