leg attack
n.— «Alfimeprase is currently being evaluated in a Phase 3 clinical program for the treatment of patients with acute peripheral arterial occlusion (PAO), also known as “leg attack.”» —“Nuvelo Begins Phase 3 Program Evaluating Alfimeprase in Patients With Central Venous Catheter Occlusion” in Sunnyvale, Calif. Yahoo Finance Sept. 6, 2005. (source: Double-Tongued Dictionary)