Comparative Histopathology of Radial Artery Versus Internal Thoracic Artery and Risk Factors for Development of Intimal Hyperplasia and Atherosclerosis

Abstract

The RA is more likely to have atherosclerosis, intimal hyperplasia, and medial calcification than the ITA. Morphometric analysis indices showed marked differences between the RA and the ITA. Care should be taken when selecting the RA as a conduit in CABG, particularly in patients who are elderly, diabetic, smoke, or have peripheral vascular disease.