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Surgical Swine Model of Chronic Cardiac Ischemia Treated by Off-Pump Coronary Artery Bypass Graft Surgery
Published on: March 27, 2018
[Vascular biology of coronary bypass grafts. Literature review]
L Barandon1, M Kindo, L P Perrault
1Département de chirurgie cardiaque, Institut cardiologique de Montréal, Québec, Canada. lesbarandon@wanadoo.fr
Insights
Coronary bypass surgery uses internal mammary artery and saphenous vein grafts. Understanding graft biology helps reduce coronary graft disease and improve bypass surgery outcomes.
Area of Science:
- Cardiovascular Surgery
- Vascular Biology
- Graft Patency Research
Context:
- Coronary artery bypass grafting (CABG) is a primary treatment for multivessel coronary artery disease.
- Internal mammary artery grafts offer superior long-term patency compared to saphenous vein grafts.
- Saphenous vein graft disease, characterized by atherosclerosis, significantly impacts graft patency over time.
Purpose:
- To review the biological mechanisms underlying coronary graft disease, particularly in saphenous vein grafts.
- To explore current and emerging therapeutic strategies aimed at enhancing graft longevity and patency.
- To bridge the understanding of graft biology with clinical interventions in myocardial revascularization.
Summary:
- This review synthesizes current literature on the biological behavior of vascular grafts used in myocardial revascularization.
- It highlights the pathophysiology of saphenous vein graft degeneration and the factors influencing graft patency.
- The paper discusses how this knowledge informs present and future treatment strategies to combat coronary graft disease.
Impact:
- Provides a comprehensive overview for researchers and clinicians investigating coronary graft failure.
- Informs the development of novel therapeutic targets to improve long-term outcomes of coronary bypass surgery.
- Facilitates a deeper understanding of graft biology to optimize patient selection and surgical techniques.
Abstract:
Myocardial revascularisation by coronary bypass surgery is the treatment of choice for patients with multivessel disease. The most commonly used grafts are the internal mammary artery and the saphenous vein. Although the use of internal mammery artery grafts gives excellent results, venous grafts, with time, are subject to atheroma which affects their patency. Improved physiopathological understanding of the natural history of grafts, especially the saphenous vein grafts, has opened the field for different operative strategies to try and reduce the incidence of coronary graft disease. This paper reviews the literature concerning the biology of coronary grafts used for myocardial revascularisation and the current and future therapeutic implications of this data.
