Vascular ulcers Flashcards
Define ulcer
Interruption in the continuity of an epithelial surface
What are the causes of ulcers?
Venous - most common Arterial Neuropathic - Alcoholics, DM Trauma - Pressure Systemic disease e.g. pyoderma gangrenosum Neoplasia - SCC
What are the properties of a venous ulcer?
Shallow sloping sides
Painless
Usually medial gaiter region
What are the risk factors for a venous ulcer?
Venous insufficiency
Varicosities
DVT
Obesity
What are the properties of an arterial ulcer?
Punched out, deep lesion
Painful
Appears at pressure points eg heads of metatarsals, heal
What are the properties of a neuropathic ulcer?
Painless with loss of sensation in surrounding skin
Warm foot
Good pulses
Tend to be on the base of the foot
What are some of the complications of an ulcer?
Osteomyelitis
Development of SCC in the ulcer
What investigations can be done in a patient with an ulcer?
ABPI - Ankle brachial pulse index (Less than 0.5 suggests arterial ulcers)
Duplex ultrasonography
Biopsy if concerned about SCC
What is the management of venous ulcers?
Refer to community ulcer team
Focus on prevention - pressure stockings, venous surgery
Optomise RFs eg smoking, nutrition
Analgesia
Bed rest/leg elevation
4 layer graded compression bandage if ABPI >0.8
Define mixed ulcer
An ulcer which has developed in a patient with venous and arterial pathology
Use ABPI to determine management