Stasis Dermatitis and Venous Leg Ulcers

Overview / Definition Stasis dermatitis is a form of eczema that arises due to prolonged venous stasis, commonly associated with chronic venous insufficiency (CVI). It manifests as inflammatory changes in the skin, typically affecting the lower extremities, and can progress to the development of venous leg ulcers if not appropriately treated. Epidemiology Stasis dermatitis is prevalent in populations with risk factors for chronic venous disease, including: Age: More common in adults over 50 years old. Gender: Higher incidence in women. Obesity: Increased body mass index (BMI) correlates with higher risk. History of venous thrombosis or varicose veins. Prolonged standing or sitting, particularly in occupations like nursing or teaching. Pathophysiology / Mechanism The pathophysiology of stasis dermatitis involves: Chronic venous insufficiency: Inadequate venous return leads to increased venous pressure. Venous hypertension: Results in capillary leakage of proteins and inflammatory mediators into the interstitial space. Skin changes: This process causes alterations in skin integrity, leading to erythema, scaling, and potentially ulceration. Clinical Presentation Patients with stasis dermatitis typically present with: Erythema: Redness of the skin, particularly around the ankles and lower legs. Pruritus: Itching is a common complaint. Scaling and crusting: The affected skin may become dry and flaky. Exudation: In severe cases, there may be serous or purulent discharge. Venous ulcers: Chronic inflammation can lead to ulcerations in the lower extremities. Diagnosis / Workup Diagnosis is primarily clinical, based on history and physical examination. Key diagnostic steps include: History: Assess for risk factors, duration of symptoms, and previous interventions. Physical examination: Examine for signs of venous disease such as varicosities, edema, and ulceration. Duplex ultrasound: To evaluate venous reflux and confirm CVI. Skin biopsy: In atypical cases, to rule out other