The invention pertains to a vascular graft (1) for interposition at a resection of vascular structures, said vascular graft comprising a hollow body (2) elongated along a longitudinal axis (3) which includes a first end (4) defining a first opening (5) and a second end (6) defining a second opening (7), wherein said resection of vascular structures concerns a resection of the carotid bifurcation, and wherein said first end (4) is configured to be attached to the common carotid artery and said second end (6) is configured to be attached to the internal carotid artery or the external carotid artery, and wherein said vascular graft comprises polytetrafluoroethylene, and wherein said vascular graft comprises an inside diameter which decreases from said first end (4) towards said second end (6).