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| {{SI}}
| | #redirect[[Saphenous Vein Graft]] |
| {{WikiDoc Cardiology Network Infobox}}
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| {{CMG}}<br/>
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| '''Associate Editors-In-Chief:''' Jason C. Choi, M.D., Xin Yang, M.D.
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| {{Editor Help}}
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| ==Background==
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| Coronary artery revascularization with [[saphenous veins]] ([[saphenous vein grafts]] or [[SVGs]]) has become a modern surgical standard for the treatment of [[coronary artery disease]]. This technique can be employed when a native [[coronary artery]] is blocked, thus causing a reduction or obstruction in [[blood flow]]. [[Cardiac surgeons]] use the sutured graft to connect the [[aorta]] to the coronary artery beyond the area of obstruction, so that [[blood flow]] may resume.
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| Despite their ability to restore [[blood flow]], SVGs commonly encounter [[stenosis]] problems. The incidence of SVG stenosis is 15-30% one year after surgery, and it increases to 50% 10 years after surgery. Several factors contribute to [[stenosis]] of [[saphenous vein grafts]], including [[intimal hyperplasia]], [[plaque]] formation, and graft remodeling. Additionally, arterialization of the graft accelerates [[atherosclerosis]]. Furthermore, [[atheroma]] found in SVGs are more friable (easily break into small pieces) and more prone to [[thrombus]] than [[plaques]] found in native vessels. Another reason why SVGs are more susceptible to [[thrombotic occlusion]] is that they lack side branches.
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| Although intervention on a chronic total occlusion of an SVG may seem like an effective treatment strategy, it is best avoided.
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| ==Goals of Treatment==
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| Primarily, the goal should be to detect and treat a SVG [[stenosis]] early in the development of [[ischemia]] while the SVG is still patent. [[Patent (disambiguation)|Patency]] allows intervention to be performed before the SVG is completely [[occlusion|occluded]], at which point intervention can no longer be performed.
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| {{SIB}}
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| [[Category:Cardiology]]
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