Radial Artery Bypass Grafts Have an Increased Occurrence of Angiographically Severe Stenosis and Occlusion Compared With Left Internal Mammary Arteries and Saphenous Vein Grafts

Abstract

Background-The radial artery has been increasingly used in CABG. However, angiographic outcome data have been limited. Methods and Results-We reviewed all coronary angiography procedures from February 1996 to October 2001 and selected patients with a radial artery bypass graft. Angiographic outcomes were divided into groups as (1)

c-Jun Regulates Shear- and Injury-inducible Egr-1 Expression, Vein Graft Stenosis after Autologous End-to-Side Transplantation in Rabbits, and Intimal Hyperplasia in Human Saphenous Veins

“…First, the present study provides the first ever demonstration that Dz13 inhibits neointima formation in venous tissue. All previous models involving Dz13 have only used arteries, and findings from arteries cannot necessarily be extrapolated to veins (25). Second, the end-to-side venoarterial autologous bypass transplantation model used here in rabbits is analogous to the anastomosis commonly performed in human CABG.…”

Comparação da perviedade entre artéria radial e veia safena em pacientes em pós-operatório de cirurgia de revascularização miocárdica com retorno dos sintomas

“…Borger et al [7] demonstrated lower mortality or cardiovascular event in 5 years, in patients undergoing CABG with two arterial grafts compared to those receiving only ITA and SV grafts. In contrast, in 2004, Khot et al [8] showed reduced graft patency of RA when compared to ITA and SV grafts. In 2006, Locali et al [9] performed a meta-analysis that showed no statistical difference in graft patency of the RA compared with SV grafts.…”

“…The radial artery (RA) appeared as a good option, but there is still no proof of its superiority over the SV [7][8][9][10][11].…”

<![CDATA[<B>Radial artery versus saphenous vein to myocardial revascularization</B>: <B>meta-analysis (there is no statistically significant difference)</B>]]>

“…On the other hand, Khot et al in 2004 concluded that the patency of the RA grafts is worse than the patency of all other vessels employed in CABG [28]. However, all of these studies were not randomized or controlled but observational, whether prospective or retrospective, and so they have little reliability and are subject to a considerable amount of bias.…”

“…A recent observational study by Khot et al [28] in 2004, showed a reduction in the perviability of RA grafts when compared to ITA and SV grafts. Despite of being a study with a low level of significance, with high potential of bias in the selection and follow-up, there was a stir in the credibility of surgeons who used RA grafts.…”