What is it?
Ends (disease(PVD)) vasomotor disorders are the result of abnormalities in the neurological control of fluctuations in size of small vessels.

Mechanisms
Arterial blood arrives at the ends in arterioles more fine which become capillaries. These capillaries are gradually transformed in venules and veins the blood return. The capillary network is what separates the arterial system of the venous system. This vascular network is not inert.

asomotor disorders of extremities

The sizes of the vessels change constantly depending on very many factors through the intervention of the vasomotor nerves that operate independently of the will. Disruption of this system of vasoconstriction and vasodilation causes a peripheral vascular disease. Raynaud’s disease and Raynaud’s syndrome.

WHAT IS IT?

These are localized symmetrical flushing crises at the extremities of the limbs, especially the fingers.

SIGNS OF THE DISEASE

Access occur the day, exposure to the cold.In the typical form, both hands become by crises suddenly white, icy, insensitive, bloodless. When it warms up, the white color is gradually replaced by a shade of mauve, purple, and the patient feels tingling and tingling in the fingers reflecting the return of the blood vasculature. In some cases, this phenomenon also affects the feet, nose, ears.Pulse and oscillations are preserved, which eliminates an Arteritis by atherosclerosis of limb.In the absence of treatment, the evolution is done in a decade to ulcerative (bedsores) of the extremities lesions.

RAYNAUD’S DISEASE

The cause is unknown.This disease primarily affects women of puberty at the age of 40.The patient must protect themselves from the cold. Calcium channel blockers are useful. Tobacco is prohibited. Removal of the sympathetic ganglia (dorsal ganglion sympathectomy) will block the sympathetic system responsible for vasoconstriction.

RAYNAUD’S SYNDROME

The latter means secondary to a systemic disease, a cryoglobulinemia, some medicines (beta-blockers, clonidine, ergot of rye…), poisoning by lead, repetitive, etc.Treatment is cause.

Erythromelalgia
Is vasodilation of the ends which the exact cause is unknown.This benign condition is seen in both sexes at all ages.Bilateral and symmetric crises are triggered by the (above 31 ° c) heat and fingers become red, hot and painful, causing a burning sensation.Treatment relies on cooling, aspirin.

Acrocyanosis
Is a very common circulatory disorder that manifests itself especially among women under 30 years.Hands are purple, cool and moist, with worsening cold and wet weather.Ears and nose may be affected.This condition is not painful, it is permanent and does not cause an ulcer.Just avoid exposure to the cold, wear warm clothing.

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What is it? Ends (disease(PVD)) vasomotor disorders are the result of abnormalities in the neurological control of fluctuations in size of small vessels. Mechanisms Arterial blood arrives at the ends in arterioles more fine which become capillaries. These capillaries are gradually transformed in venules and veins the blood return. The capillary network...