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Synergizing Antegrade Endoscopic with Bridging Vein Harvesting for Improvement of Great Saphenous Vein Graft Quality from the Lower Leg
Published on: November 19, 2019
Saphenous vein graft disease
S Peykar1, D J Angiolillo, T A Bass
1Division of Cardiology and Cardiovascular Imaging Core, Laboratories University of Florida, Shands Jacksonville, Jacksonville, FL 32209, USA.
Insights
Saphenous vein graft disease complicates coronary artery bypass grafting surgery. This review covers its causes, complications, and current therapeutic options, including promising new drug-eluting stents.
Area of Science:
- Cardiovascular Surgery
- Interventional Cardiology
- Vascular Biology
Background:
- Saphenous vein graft (SVG) disease remains a significant challenge after coronary artery bypass grafting (CABG).
- SVG disease progresses through distinct phases: thrombosis, intimal hyperplasia, and atherosclerosis, leading to recurrent ischemia.
- Repeat operations carry high mortality/morbidity, while percutaneous treatments face procedural and long-term complications.
Purpose of the Study:
- To review the pathogenesis of SVG disease.
- To discuss current and emerging therapeutic options for managing SVG disease.
- To highlight challenges and potential solutions in treating SVG disease.
Main Methods:
- Literature review of pathogenesis and therapeutic strategies for SVG disease.
- Analysis of complications associated with repeat operations and percutaneous interventions.
- Evaluation of novel approaches, including drug-eluting stents and distal protection devices.
Main Results:
- SVG disease involves thrombosis, intimal hyperplasia, and atherosclerosis, resulting in poor long-term patency.
- Percutaneous treatment is hindered by distal embolization, no-reflow, myocardial infarction, and restenosis.
- Distal protection devices offer some benefit; drug-eluting stents show promise for reducing restenosis.
Conclusions:
- Effective management of SVG disease requires addressing its complex pathogenesis and multifactorial complications.
- Novel therapies like drug-eluting stents represent a significant advancement in improving outcomes for SVG disease.
- Further research is needed to optimize treatment strategies and improve long-term graft patency.
Abstract:
Saphenous vein graft (SVG) disease has been an obstinate problem facing the cardiologist since the early days of coronary artery bypass grafting (CABG) surgery. SVG disease follows temporally distinct phases of thrombosis, intimal hyperplasia and progressive atherosclerosis leading to recurrent ischemia which can be treated with repeat operation or percutaneous revascularization. However, repeat operation is associated with high mortality and morbidity. Also, percutaneous treatment of SVG disease is complicated by a high rate of procedural and long term complications due to the interrelated phenomena of distal embolization, slow flow or no reflow, periprocedure myocardial infarction, and subsequent restenosis. Long-term patency is poor in this patient population regardless of the treatment modality. Many pharmaceutical and device based approaches have been tested to avert these complications, but few, such as the use of distal protection devices, have shown benefit. The novel drug-eluting stents show promise in reducing the occurrence of restenosis and solving one of the problems associated with the percutaneous treatment of SVG disease. The pathogenesis and therapeutic options for SVG disease is reviewed in this article.
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