Comprehensive Guide to Arterial (Ischemic) Ulcers
Arterial ulcers occur due to reduced blood flow (ischemia) to the skin and limbs, usually appearing as chronic and painful wounds on the feet and toes.
What Is an Arterial Ulcer?
An arterial ulcer is a wound that occurs due to insufficient blood supply (ischemia) caused by arterial insufficiency. These ulcers account for about 15% of all leg ulcers and usually appear on the lower leg or between the toes.
Arterial or ischemic ulcers are very painful—especially at night—and are commonly seen in patients with a history of poor circulation. Patients often hang their legs off the bed to relieve the pain.
Common sites include the heel, the tips and spaces between the toes, bony prominences, and areas that rub against shoes or bed sheets.
An arterial ulcer usually indicates severe impairment of blood flow and requires prompt and thorough evaluation.
Who Is at Risk of Arterial Ulcers?
The main predisposing factors are related to lifestyle and underlying diseases:
- ✓Diabetes
- ✓Smoking
- ✓High cholesterol and blood lipids
- ✓High blood pressure (Hypertension)
- ✓Kidney failure
- ✓Obesity
- ✓Rheumatoid arthritis
- ✓Blood clotting and circulation disorders
- ✓Other arterial diseases such as coronary artery disease and peripheral artery disease (PAD)
Causes of Arterial Ulcers
Arterial ulcers result from a severe reduction in oxygenated blood flow to the tissues. The most common cause is atherosclerosis — the buildup of fatty deposits in the arterial walls that narrows the vessels and reduces blood flow.
Smoking, high blood pressure, high blood sugar, high cholesterol, and a sedentary lifestyle are major factors that worsen arterial insufficiency.
In advanced cases, local ischemia leads to tissue death (necrosis); even without external injury, the skin may break down and ulcerate.
Clinical Features of Arterial Ulcers
The characteristic signs of arterial ulcers include:
- ✓Ulcer location: toes, heel, or lower leg
- ✓Severe pain, especially at night
- ✓Well-defined edges with a punched-out appearance
- ✓Minimal bleeding
- ✓Cold, pale, bluish, or shiny skin around the ulcer
- ✓Hair loss and reduced or absent ankle pulses
Other signs of arterial insufficiency include:
- ✓Pain during walking that improves with rest (intermittent claudication)
- ✓Rest pain or burning sensation that improves when the leg is dangled down
- ✓Numbness, weakness, or coldness of the foot
- ✓Color changes (red when dependent, pale when elevated)
- ✓Non-healing ulcer with persistent nocturnal pain
Diagnosis of Arterial Leg Ulcers
Clinical diagnosis is based on assessment of blood flow, skin condition, nails, and foot pulses.
The physician palpates femoral, popliteal, and pedal pulses and compares arm and leg blood pressure to calculate the ABI (Ankle-Brachial Index). A lower ankle pressure indicates arterial insufficiency.
In advanced PAD (Peripheral Arterial Disease), ischemia may become critical — requiring urgent surgical or endovascular intervention to save the limb.
⚠️Critical Warning Signs
Severe or persistent leg pain even at rest
Sudden change in leg color or unusual coldness of the limb
Blackening or foul odor from the wound (necrosis)
Weak or absent pulse at the ankle
Signs of infection: redness, warmth, swelling, or fever
Common Locations and Clinical Appearance of Arterial Ulcers
Arterial ulcers commonly appear on the toes, heels, ankles, and other pressure points.
The wound typically appears deep with well-defined edges and a pale or necrotic base. The surrounding skin is often cold, hairless, and lacks a palpable pulse.
Treatment of Arterial Ulcers
Treatment includes managing the underlying arterial insufficiency and providing specialized wound care.
- ✓Smoking cessation
- ✓Diet modification and cholesterol control
- ✓Control of blood sugar and blood pressure
- ✓Regular physical activity appropriate to the patient’s condition
Wound care involves sterile dressing, debridement of necrotic tissue, and maintaining a moist wound environment.
Systemic antibiotics are indicated only if signs of infection are present:
- ✓Redness or swelling around the wound
- ✓Increased pain or local warmth
- ✓Purulent discharge or wound enlargement
- ✓Fever
Specialized and Surgical Treatment Methods
Specialized Treatment
In resistant or advanced cases, the following treatments are necessary:
- ✓Use of vasodilators and anticoagulant medications
- ✓Wound care with specialized dressings and regular debridement
- ✓Angioplasty or arterial bypass to restore blood flow
- ✓Skin grafting to cover ischemic ulcers
- ✓In severe conditions, limb amputation to save the patient’s life
Prevention and Lifestyle Modification
Key Factors for Preventing Arterial Ulcers
Lifestyle changes can significantly reduce the risk of developing or recurring ulcers:
- ✓Complete smoking cessation — the most important controllable factor
- ✓Following a low-fat, high-fiber diet
- ✓Regular physical activity such as walking, cycling, or swimming
- ✓Managing underlying conditions like diabetes and hypertension
Nutritional Recommendations
Recommended foods:
- ✓Leafy green vegetables such as kale and spinach
- ✓Fish rich in omega-3 fatty acids
- ✓Nuts such as walnuts and hazelnuts
Foods to Avoid
- ✓Processed and fried foods
- ✓High-sugar and high-salt snacks
⚠️When to Contact Your Doctor
New pain or increased pain in the leg or foot
Foot turning pale, purple, or becoming numb
Decreased pulse or extreme coldness in the limb
Appearance of new blisters or ulcers
Signs of infection at or around the wound site
Specialized Consultation with Taskin Wound Clinic
The Taskin specialized team, experienced in the treatment of ischemic wounds, is ready to provide consultation, angiography, and advanced wound care services.
📞Request a Consultation