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The diagnostic value of clinical signs and symptoms in patients with Raynaud's phenomenon. A cross-sectional study.
Netherlands Journal of Medicine 1990 December
Patients presenting with Raynaud's phenomenon pose differential diagnostic problems. The question is whether the discolorations are a symptom of the benign primary type or a symptom of an underlying disease, mostly a connective tissue disease or an atherosclerotic occlusive disease, both having major prognostic implications. To evaluate whether Raynaud patients can be classified properly in the above-mentioned categories on clinical grounds we evaluated 225 patients using a checklist dealing with signs and symptoms supposed to be specific for primary Raynaud's phenomenon or the two major types of the secondary form. Complaints that started before the age of 20, reactive hyperaemia at the end of an attack and discolorations of the earlobes and the nose have a high predictive value for primary Raynaud's phenomenon. Trophic skin disturbances are rare in the latter but are rather specific for connective tissue diseases. In the case of arterial obstructive disease, the feet are always involved and risk factors associated with atherosclerosis are often present, whereas this type is specifically encountered in men in whom the complaints started over the age of 50 [corrected], and in whom signs of atherosclerotic vessel wall disease were seen elsewhere. In conclusion, in most patients who present with a Raynaud's phenomenon a complete history and physical examination are sufficient for a correct diagnosis. Supplementation with determination of anti-nuclear antibodies, measurements of the capillary perfusion and of the finger skin systolic pressure completes the diagnostic classification.
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