Non-compressible hemorrhage is the most common preventable cause of death on
battlefield and in civilian traumatic injuries. We report the use of microsecond pulses of
electric current to induce rapid constriction in femoral and mesenteric arteries and veins in
rats. Electrically-induced vasoconstriction could be induced in seconds while blood vessels
dilated back to their original size within minutes after stimulation. At higher settings, a blood
clotting formed, leading to complete and permanent occlusion of the vessels. The latter …