Raynaud’s Phenomenon

Pathophysiology

1) intermittent ischemia of fingers and toes 2) if occurs as an isolated event, then it is called Raynaud’s disease or primary Raynaud’s phenomenon 3) proposed theories – it is an exaggerated sympathetic reflex vasoconstriction or an exaggerated response to cold stimuli 4) if ischemia occurs in association with other conditions it is called Raynaud’s phenomenon or secondary Raynaud’s phenomenon