The fate of a composite arterial graft in a 58-year-old man having strong comorbidities and atherosclerotic burden

Abstract

For some difficult subsets of coronary patients having specific comorbidities, such as insulin-dependent diabetes and chronic renal failure, arterial myocardial revascularization could be a satisfactory option. The key question is which arteries should be used. A 58-year-old insulin-dependent diabetic patient with severe renal failure, despite previous kidney transplantation, underwent treatment of his severe and diffuse coronary disease using a composite arterial Y-graft and saphenous vein. Both internal thoracic arteries were harvested as skeletonized conduits. The patient's hospital course was totally uneventful. Fifty-six months later, the patient underwent hospital readmission due to a new (inferior) myocardial infarction. Coronary angiography showed both the progression of disease into the native vessels and occlusion of the venous graft. The Y-graft was patent and well functioning despite the presence of a preoperative left upper limb dialysis fistula. This case report emphasizes the concept that both internal thoracic arteries seem to be refractory to most aggressive forms of atherosclerosis, and that a more liberal use even for high-risk candidates could be a rational practice. However, many surgeons consider the use of both internal thoracic arteries for myocardial revascularization as a too risky strategy that has to be adopted only for young and low-risk patients.

Keywords

• Arterial grafts
• atherosclerosis
• chronic renal failure
• coronary bypass surgery
• diabetes
• insulin
• kidney transplantation
• outcome