The emergency cold leg.

The clinical state of the emergency cold leg is appropriately named. The problem may be classified as a vasospastic or venoocclusive nonocclusive lesion or as an embolic or a thrombotic occlusive lesion. Diagnosis is based on the history and results of physical examination. The status of the pulses determines the need for arteriography. Rapid recognition of the problem, with an aggressive reconstructive approach, is the cornerstone of successful management. Complications resulting from failure to carry out proper treatment or arising even when proper treatment is given may be serious and lead to loss of limb or life. The seriousness of emergency cold leg cannot be overemphasized.