Abstract
Raynaud's phenomenon manifests as triphasic color changes of the digits, induced by exposure to low temperature or emotional stress. It is a relatively common disorder, estimated to affect 5% to 10% of the general population and 25% to 30% of otherwise healthy women. Although usually self-limiting, it can be severely painful and debilitating, and complicated by ulcerations and tissue necrosis. For the emergency physician treating a patient with an acute presentation of the phenomenon, the main challenges are to achieve adequate pain control, reverse vasospasm, and maintain viable tissue. Emergency treatment can also extend to patient education and arrangement of appropriate referrals and follow-up care.
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