Clinical Assessment: Chronic Venous Insufficiency (CVI) with Stasis Dermatitis

What the Image Shows

• Extensive dark brown to grayish-black hyperpigmentation concentrated in the "gaiter region" (lower third of the leg and ankle) - this is hemosiderin staining from red blood cells leaking out of congested veins into the skin
• Ankle and lower leg edema with loss of normal ankle contour - the tissue appears full and congested
• Thickened, leathery skin texture consistent with lipodermatosclerosis (chronic inflammation and fibrosis of the subcutaneous fat)
• Distribution on the medial supramalleolar region is the typical location for this condition

Pathophysiology

1. Slowed microvascular blood flow
2. Distension and damage to capillary walls
3. Extravasation of fluid (edema) and red blood cells
4. Hemosiderin deposits in the skin (the dark pigmentation seen)
5. Inflammatory mediator release and microangiopathy
6. Progressive fibrosis = lipodermatosclerosis

Why He Has Difficulty Walking

• Painful edema - swollen, tense tissue around the ankle restricts movement
• Lipodermatosclerosis - fibrosis makes the ankle stiff ("inverted champagne bottle" shape with time)
• Pruritus causing secondary excoriation and skin breakdown
• Possible underlying varicose veins reducing venous return on exertion

Differential Diagnosis to Consider

Recommended Investigations

1. Venous duplex ultrasound - gold standard to assess venous reflux and deep vein patency (rule out DVT)
2. Ankle-Brachial Pressure Index (ABPI) - mandatory before compression therapy to exclude arterial disease
3. Blood tests: FBC, renal function, liver function, blood sugar (diabetes worsens venous disease), thyroid function (can cause leg edema)

Management

1. Compression Therapy (FIRST-LINE - after ABPI is confirmed normal)

• Graduated compression stockings: Class II (23-32 mmHg) or higher
• Multi-layer compression bandaging for significant edema
• Do NOT start compression if ABPI < 0.8 (arterial disease present)

2. Leg Elevation

• Elevate legs above heart level for 30+ minutes, 3-4 times daily
• Avoid prolonged standing or sitting

3. Skin Care

• Emollients (e.g., white soft paraffin, ceramide creams) applied twice daily to prevent cracking and relieve dryness/itching
• Avoid fragranced products - sensitization is common in CVI (neomycin, lanolin, preservatives are common contact allergens in this group)

4. Topical Corticosteroids (for active dermatitis/itching)

• Moderate potency (e.g., betamethasone valerate 0.1% or mometasone 0.1%)
• Short courses only to control active flares
• Avoid long-term use on edematous, friable skin

5. Treat Underlying CVI

• Referral to vascular surgery / interventional radiology for ablation of incompetent veins (EVLA - endovenous laser ablation, sclerotherapy)
• This is the most effective long-term strategy per the SCAI 2024 CVD Guidelines

6. Lifestyle

• Weight reduction if overweight
• Walking exercise (calf muscle pump activation is key)
• Avoid prolonged static postures

Red Flags - Seek Urgent Attention If:

• Open sore or skin ulcer develops (especially above the medial malleolus)
• Rapid worsening of unilateral swelling (possible DVT)
• Area becomes hot, red, with spreading redness and fever (cellulitis/infection)
• Sudden onset of pain

Summary for This Patient

Note: This is a clinical assessment based on the image. A physical examination by a doctor is necessary before starting any treatment, particularly compression therapy.

Rx — Prescription

TOPICAL MEDICATIONS

• Apply a thin layer to the darkened, itchy areas on the lower leg and ankle
• Once daily at night
• Duration: 2-4 weeks (then review - do NOT use continuously)
• For the itch and active dermatitis

• Apply liberally to all affected skin twice daily (morning and after bath)
• Continue long-term as maintenance
• Emollient for dry, thickened skin

ORAL MEDICATIONS

• e.g., Daflon 500 mg OR Varikosette
• 2 tablets daily (morning + evening) with meals
• Duration: 3-6 months minimum
• Venotonic - reduces venous hypertension, edema, and inflammation

• Once daily at night
• Duration: 4 weeks
• For pruritus / itching relief

• Twice or three times daily with meals
• Duration: 3 months
• Improves microcirculation, reduces inflammation - beneficial in CVI

COMPRESSION THERAPY

• Wear from morning (before getting out of bed) until bedtime
• Both legs if bilateral involvement
• ⚠️ Only after ABPI is confirmed > 0.8 (arterial check mandatory)

INVESTIGATIONS ORDERED

• Venous Duplex Ultrasound - both legs
• Ankle-Brachial Pressure Index (ABPI)
• Fasting blood glucose / HbA1c
• Serum albumin, LFT (rule out hypoalbuminemia)
• Renal function (urea, creatinine)
• CBC

PATIENT INSTRUCTIONS

1. Elevate both legs above heart level for 30 minutes, at least 3 times a day
2. Walk regularly - 20-30 minutes daily (activates calf muscle pump)
3. Avoid prolonged standing or sitting with legs dependent
4. Do NOT scratch the affected areas - use cold compresses for itch relief
5. Use lukewarm water only for bathing; avoid hot water on the legs
6. Use only fragrance-free, gentle soap on affected areas
7. Keep skin moisturized at all times

REFERRAL

• Vascular Surgery / Interventional Radiology for assessment of venous ablation (EVLA/sclerotherapy) once duplex results are available - this is the definitive treatment

FOLLOW-UP

• 2 weeks - review skin response to steroids, adjust if needed
• 6 weeks - review with duplex ultrasound results
• Return immediately if: open wound/ulcer develops, rapid unilateral swelling, signs of infection (fever, hot red leg, pus)

⚠️ Important: This prescription is a clinical guide. A licensed physician must examine the patient, confirm the diagnosis, check for arterial disease before prescribing compression, and adjust medications based on comorbidities (diabetes, hypertension, renal/hepatic function) before it is finalized and dispensed.