Bypass to the anterior interosseous artery in the forearm: Follow-up a
t 3 years A 56 year-old, otherwise healthy woman suffered from acute i
schaemia of her left arm one year after a fracture of the radius which
had been treated with plaster fixation. Angiography demonstrated occl
usions of the brachial, radial and ulnar arteries. Three surgical thro
mbectomies, local fibrinolysis and throacoscopic sympathectomy all fai
led to restore adequate blood supply to the forearm and hand. The pati
ent continued to have pain on exercise and even at rest. After three m
onths, an autologous vein bypass graft was implanted from the proximal
brachial artery to the anterior interosseous artery. Thereafter the p
atient became free of symptoms. At over three years, angiography was r
epeated and demonstrated a patent bypass. Furthermore, the lumen of th
e previously heavily diseased brachial artery had considerably improve
d in terms of diameter and regularity. These changes and possible mech
anisms are discussed.