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Brazilian Journal of Cardiovascular Surgery
On-line version ISSN 1678-9741
SOBRAL, Marcelo Luiz Peixoto et al. Comparative randomized study of the immediate outcomes of patients with radial arteries proximally anastomosed to the aorta or as a composite graft. Rev Bras Cir Cardiovasc [online]. 2006, vol.21, n.1, pp.35-41. ISSN 1678-9741. http://dx.doi.org/10.1590/S0102-76382006000100008.
OBJECTIVE: The clinical results of the radial artery when proximally anastomosed to the aorta or to the left internal thoracic artery (LITA) as a composite Y-graft were comparatively evaluated. METHODS: From November 1999 to March 2001, 100 patients who underwent coronary artery bypass grafting using the RA, the LITA and, when required, the saphenous vein, were divided in two groups with 50 patients each in a prospective randomized study. Group I (GI) with radial artery proximally anastomosed to the aorta and Group II (GII) as a composite graft (Y-graft) with the LITA. RESULTS: Early mortality was 1.0 % (GI 2.0% and GII 0.0%) (p=1.00). A mean of 3.0+0.12 (GI) versus 2.82+0.12 (GII) (p=0.29) coronary vessels were grafted per patient. Patients in composite Y-graft group had shorter bypass time (p=0.0001). There were no differences in terms of perioperative outcomes. CONCLUSIONS: The RA provides similar clinical results as aorto-coronary grafts and ascomposite Y-grafts with the LITA, except in respect to the bypass time.
Keywords : Myocardial revascularization; Radial artery; Anastomosis, surgical [methods].