"ent français du sang Aquitaine- Limousin ABSTRACT Mixed arterial and venous ulcers often heal poorly if there is no revascularization, as observed in the elderly, diabetics, and chronic renal failure patients who often have diffuse, distal, and calcified vascular lesions. Treatment therefore is based on optimized local wound care, pain control, and management of the risk of infection inherent in these types of patients with chronic wounds. Current avenues of research in treatment are based on the development of angiogenesis and the use of growth factors to promote healing. Placental tis"

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