Leg Ulcers Flashcards
what is an ulcer
local defect or excavation of the surface of an organ or tissue that is produced by sloughing of inflammatory necrotic tissue
what is a skin ulcer
loss of an area of epidermis and dermis to produce a defect
what is erosion
loss of the epidermis (shallow)
what are the causes of leg ulcer
most common cause is vascular (venous 70%, arterial 10%)
rare causes - neuropathic, inflammatory, infection
what are the risk factors for venous leg ulcers
vascular incompetence
previous drainage of venous system
obesity
what is bilateral cellulitis
vary rare due to venous hypertensive changes and venous eczema
what are associated signs of chronic venous hypertension
venous flare varicose veins varicose eczema lipidermatosclerosis atrophy blance
what are arterial ulcers associated with
peripheral vascular disease
what are the risk factors of arterial ulcers
diabetes
hypertension
history of ischaemic disease
what is the end stage of arterial ulceration
gangrene
where are neuropathic ulcers common
often under metatarsal head or the heal