The first description of “Vieussen’s valve,” “Vieussens’s ring,” and the “Thebesian veins” of the heart. "These ‘ducti carnosi’ were ultimately named ‘Thebesian veins’ after subsequent work completed by Adam Christian Thebesius just two years after Vieussens’s publication. Vieussens's 1706 work also included a description of the valve of the coronary vein known now as Vieussens’s valve—of clinical significance during placement of biventricular pacing leads—as well as a description of a conus branch of the right coronary artery circling around the aorta to the left arterial system providing a source of collateral flow known as Vieussens’s ring” (Jeremy Parker).