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Raynaud’s disease Reference – Symptoms, Diagnosis, Treatments
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Raynaud’s disease Reference – Symptoms, Diagnoses, Treatments
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Raynaud's disease-From Wikipedia, the free encyclopedia
Raynaud's disease Classification & external resources ICD-10 I73.0 ICD-9 443.0 OMIM 179600 DiseasesDB 11186 MedlinePlus 000412 eMedicine med/1993 MeSH C14.907.744 Raynaud's disease (RAY-noz) is a condition that affects blood flow to the extremities which include the fingers, toes, nose and ears when exposed to temperature changes or stress. It was named after Maurice Raynaud (1834 - 1881), a French physician who first described it in 1862.
Contents 1 Symptoms 2 Disease vs. phenomenon 2.1 Primary Raynaud's (disease) 2.2 Secondary Raynaud's (phenomenon) 3 Prevention 4 Treatment 5 References 6 See also 7 External links
Symptoms
Hands with Raynaud's diseaseThe symptoms include several cyclic color changes:
When exposed to cold temperatures, the oxygen supply to the fingertips, toes, nose, and earlobes of Raynaud's disease patients is reduced and the skin turns pale or white (called pallor) and becomes cold and numb. When the oxygen supply is depleted, the skin colour turns blue (called cyanosis). These events are episodic and when the episode subsides, or the area is warmed, blood returns to the area and the skin colour turns red (rubor) and then back to normal, often accompanied by swelling and tingling. These symptoms are thought to be due to reactive hyperemias of the areas deprived of blood flow. All three colour changes are present in classic Raynaud's disease. However, some patients do not see all of the colour changes in all outbreaks of this condition.
Flat nails are also associated with Raynaud's disease[1].
Disease vs. phenomenon It is important to distinguish Raynaud's disease from Raynaud's phenomenon. In order to diagnose these two forms of Raynaud's, your doctor may look for signs of arthritis or vasculitis and conduct a number of laboratory tests.
Primary Raynaud's (disease) Raynaud's disease (or "Primary Raynaud's") is diagnosed if the symptoms occur only by itself and is not accompanied by other diseases. It often develops in young women in their teens and young adulthood. This form of Raynaud's is thought to be hereditary, although it is uncertain if it is actually genetic or if it is simply recognized more often within families of people diagnosed with the disease.
Secondary Raynaud's (phenomenon) Raynaud's phenomenon (or "Secondary Raynaud's") occurs secondary to many different causes:
The most common causes are connective tissue disorders such as systemic lupus erythematosus, scleroderma/systemic sclerosis, arthritis and many others. Other disorders that can be causes include carpal tunnel syndrome and obstructive arterial disease. Medications that can be causes include beta-blockers and ergotamine. In contrast to the disease form, this form of Raynaud's can progress to necrosis or gangrene of the fingertips.
Prevention Patients with Raynaud's disease are advised to keep warm by wearing gloves and socks. They should also avoid stress, medicines that can constrict blood vessels such as decongestants and touching cold objects. Patients are also advised to avoid foods and activities that may constrict blood vessels such as drinking caffeinated drinks and smoking. Avoiding artificially cold environments, such as refrigirated or highly air conditioned spaces, can also help prevent episodes from occuring.
Treatment The severity of the disease runs from mild to severe. In people with mild cases, this may be simply an annoyance. More serious cases require medical intervention due to the risks of gangrene and possible digital amputation. Microvascular surgery of the affected areas is a possible therapy.
Treatment for Raynaud's disease may include prescription medicines that enlarge blood vessels, such as calcium channel blockers (nifedipine). Mild cases of Raynaud's can be addressed by biofeedback or a technique to help control involuntary body functions such as skin temperature. In severe cases, a sympathectomy procedure can be performed. Here, the nerves that signals the blood vessels of the fingertips to constrict are surgically cut.
References Raynaud AGM. De l'asphyxie locale et de la gangrène symétrique des extrémités. Academic thesis, Paris, Rignoux, 1862.
See also Raynaud's syndrome CREST syndrome Vasospasm ..
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