Hemodynamics of sequential bypass grafts in peripheral arterial occlusions.

An experimental model of double arterial occlusion with potential run-off through an intervening arterial segment has been devised to measure the efficacy of sequential bypass grafting in augmenting run-off. Graft flows were augmented in all instances by the addition of a sequential anastomosis. The increases in flow rates ranged from 49 to 182 per cent.