Grafts used in Coronary Bypass surgery.

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SUMMARY

The Internal Mammary Artery (IMA) is now the preferred graft for coronary artery bypass surgery, replacing the Great Saphenous Vein (GSV). The IMA does not undergo atherosclerosis, which significantly enhances its longevity, with a functional lifespan of up to 10 years. This discussion raises questions about the mechanisms that prevent atherosclerosis in the IMA compared to other arteries, such as the aorta and coronary arteries, particularly in relation to perfusion dynamics and structural properties.

PREREQUISITES
  • Understanding of coronary artery bypass grafting techniques
  • Knowledge of atherosclerosis and its risk factors
  • Familiarity with vascular anatomy, specifically the Internal Mammary Artery
  • Basic principles of perfusion and blood flow dynamics
NEXT STEPS
  • Research the biological mechanisms preventing atherosclerosis in the Internal Mammary Artery
  • Explore comparative studies on graft longevity between IMA and GSV
  • Investigate the impact of perfusion on graft health and longevity
  • Learn about advancements in surgical techniques for coronary artery bypass grafting
USEFUL FOR

Cardiothoracic surgeons, medical students, and healthcare professionals involved in cardiac surgery and vascular health will benefit from this discussion.

Manish7
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Previously graft for coronary artery bypass was great saphenous vein (GSV) still being used,but now Internal mammary artery(IMA) is the graft of choice.
Because IMA doesn't atherosclerose at alland all the vessels of upper limb, and its life is upto 10years.
I need to put up query why it is that it doesn't atherosclerose, is it due to anything related to perfusion or it possesses any mechanism to avoid it which these large arteries such as aorta , coronary doesn't ?
When used as a graft it shows tendency to atherosclerose (as its life expectancy is 10 years), keeping in mind the major risk factors for atherosclerosis present.
 
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Is this a homework or coursework question?
 
I replied in the previous thread of mine.
 

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