doiSerbia

Patency of internal thoracic artery and vein grafts according to revascularized coronary artery properties

Redžek Aleksandar (Institute of Cardiovascular Diseases of Vojvodina, Department of Cardiovascular Surgery, Sremska Kamenica)
Mihajlović Bogoljub (Institute of Cardiovascular Diseases of Vojvodina, Department of Cardiovascular Surgery, Sremska Kamenica)
Kovačević Pavle (Institute of Cardiovascular Diseases of Vojvodina, Department of Cardiovascular Surgery, Sremska Kamenica)
Čemerlić-Ađić Nada (Institute of Cardiovascular Diseases of Vojvodina, Department of Cardiology, Sremska Kamenica)
Pavlović Katica (Institute of Cardiovascular Diseases of Vojvodina, Department of Cardiology, Sremska Kamenica)
Velicki Lazar (Institute of Cardiovascular Diseases of Vojvodina, Department of Cardiovascular Surgery, Sremska Kamenica)

Long-term results of surgical myocardial revascularization are determined by the quality of grafts and the progression of atherosclerosis in coronary arteries. The aim of the study was to evaluate the patency rate of internal thoracic artery and great saphenous vein grafts in relation to the hemodynamic properties of revascularized coronary artery. The patency of internal thoracic artery and great saphenous vein grafts was analyzed in relation to the degree of coronary stenosis estimated by angiography and the diameter of distal portion of coronary artery assessed intra-operatively. The long-term patency of great saphenous grafts depends on the distal coronary artery diameter but not on the degree of coronary artery stenosis. The patency of internal thoracic artery graft depends on the degree of co­ronary artery stenosis but not on the distal coronary artery diameter. The internal thoracic artery is the superior graft in coronary surgery, but the low patency rate in case of moderate coronary artery stenosis emphasizes the importance of selective approach.

Keywords: Coronary Artery Bypass, Myocardial Revascularization, Graft Occlusion, Vascular, Mammary Arteries, Internal Mammary - Coronary Artery Anastomosis, Vascular Patency, Coronary Stenosis