stasis dermatitis
Introduction
Introduction to stasis dermatitis Stasisdermatitis, also known as stasisczema, varicose eczema (vasicoseeczema), gravity eczema (gravitationaleczema), hypostatic dematitis (hypostaticdermatitis), similar to the "muscle" recorded in the medical literature of the motherland . Chinese medicine believes that it is a hot and humid bet, meridian barrier, congestion and blood stasis, poor blood; or aggravation of the tumor for a long time, blocking the meridians, skin dystrophy. basic knowledge The proportion of sickness: 0.004% - 0.006% Susceptible people: no special people Mode of infection: non-infectious Complications: thrombophlebitis
Cause
Causes of stasis dermatitis
(1) Causes of the disease
The true cause is still unknown, the incidence is related to varicose veins of the lower extremities, long-term engaged in standing or heavy physical labor or multiple pregnancies, pelvic varicose veins in addition to congenital vein wall weakness and venous valve defects, can also be secondary to thrombophlebitis Venous occlusion.
(two) pathogenesis
Some people think that it is related to venous hypertension to cause arteriovenous fistula or arteriovenous short circuit in the affected part. It is also believed that the venous flow pressure in the gastrocnemius pump is increased, the local capillaries are dilated, and the intercellular space gap is widened to allow fibrin to penetrate into the stroma. Layer fibrin forms a barrier around the capillaries, causing local skin tissue hypoxia and malnutrition. When varicose veins, the venous return is blocked and the blood flow becomes slow and backward, causing venous congestion, reduced blood oxygen and nutrients, and capillary osmosis. Increased sex, liquid, protein and red blood cells, metabolites and other infiltration into the tissue, the formation of edema, and then hypoxia and malnutrition, itching or paresthesia, scratching, rubbing or trauma and other irritations that occur.
Prevention
Stasis dermatitis prevention
Early diagnosis, early treatment, such as long-term standing or heavy physical labor, try to take protective measures.
The skin of patients with stasis dermatitis is susceptible to irritation, and antibiotic creams, first aid (anesthetic) creams, alcohol, lanolin or other chemicals should not be used as they may aggravate the condition.
Complication
Staphylococcal dermatitis complications Complications thrombophlebitis
If a trauma or infection occurs, it can form a long-lasting ulcer, which can be secondary to venous occlusion after thrombophlebitis.
Symptom
Stasis dermatitis symptoms Common symptoms Skin rough itching scarring venous thrombosis Calf and ankle joint week... Calf edema
In addition to the acute venous thrombosis, the general onset is slow, first began to appear mild edema in the lower third of the calf, can disappear after rest, standing or walking for a long time, then reappear, aging erythema or maroon Patches, sometimes purplish-like patches, rounded, about five cents in size, with mild erosions and scars on them, borders are clear, consciously itchy, rough skin, desquamation, thickening, Cleft palate, showing mossy lesions, and even keloid-like hardness due to progressive fibrosis, recurrent or exacerbated, especially in winter.
Examine
Examination of stasis dermatitis
Check the location, shape, size, and area of the skin lesion.
Diagnosis
Diagnosis and identification of stasis dermatitis
diagnosis
According to the location of the disease, the characteristics of the lesion, chronic comorbidities often combined with lower extremity varicose veins, it is generally not difficult to diagnose.
Differential diagnosis
It needs to be differentiated from progressive pigmented skin disease and hypertrophic lichen planus.
