RT Book, Section A1 Doherty, Gerard M. SR Print(0) ID 58092914 T1 Arterial Occlusion, Acute T2 Quick Answers Surgery YR 2010 FD 2010 PB The McGraw-Hill Companies PP New York, NY SN LK accesssurgery.mhmedical.com/content.aspx?aid=58092914 RD 2024/10/08 AB • Sudden occlusion of previously patent artery supplying an extremity• Abrupt onset of ischemia: pain, coldness, numbness, motor weakness, absent pulses• Tissue viability determined by collaterals and surgical intervention• Line of demarcation occurs between viable and nonviable tissue• Caused by embolus, thrombosis, trauma, or dissection