Effect of Coronary-Coronary Bypass Geometrical Configuration on Blood Flow Parameters in End-to-Side and Side-to-End Anastomoses Regions

In this paper, in order to investigate the effect of different degree of stenoses andgrafting angle on wall shear stress, three dimensional pulsatile blood flow was studied ina coronary-coronary bypass. The blood was considered as Newtonian, homogenous andincompressible fluid. Simulations were carried out in 20, 30 and 40 bypass grafting angle and 50, 75 and 85 stenoses percentages using Fluent software. Results show the stenoses percentage effect on recirculation zone in the upstream of coronary artery. Simulation results also show using 30° bypass angle is a very suitable bypass angle in coronary-coronary bypass grafting.