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Treatment of Varicose Veins
Varicose veins affect at least 10% of the general population and result from venous valve incompetence leading to venous hypertension, dilation, and tortuosity - most commonly of the great saphenous vein (GSV). Risk factors include obesity, female sex, prolonged standing, and family history.
Assessment First
Before any treatment, duplex ultrasound is essential for anatomical and physiological assessment - identifying the site of reflux (saphenofemoral junction, saphenopopliteal junction, or perforating veins), vein diameter, and deep vein status. Treatment planning depends on whether truncal reflux (GSV/SSV) is present.
1. Conservative Management
Compression therapy is the cornerstone first-line treatment for all symptomatic patients.
- Elastic compression stockings: 20-30, 30-40, or 40-50 mmHg, knee-high to thigh-high
- Stockings should cover all symptomatic varices
- The 2025 SCAI guidelines give a conditional recommendation for compression over no compression in symptomatic varicose veins/chronic venous insufficiency
- Additional measures: weight loss, leg elevation, avoiding prolonged standing
Compression alone provides adequate symptom relief for many patients. Intervention is warranted when symptoms worsen despite stockings, or when lipodermatosclerosis or venous ulceration is present.
2. Sclerotherapy
Sclerotherapy destroys the venous endothelium and is effective for:
- Telangiectasias and small reticular veins (liquid sclerotherapy)
- Varicose veins up to 4+ mm (foam or liquid sclerotherapy)
Common sclerosing agents (per Pfenninger & Fowler's Procedures for Primary Care):
| Agent | FDA Approved | Key Feature |
|---|
| Sodium tetradecyl sulfate (STS) | Yes | Painless; risk of extravascular necrosis |
| Hypertonic saline (23.4%) | Yes (as abortifacient) | No anaphylaxis risk; inexpensive; causes some discomfort |
| Polidocanol | No (in US) | Painless; less necrosis risk |
Concentrations by vessel size:
- Telangiectasias: 11.7-23.4% saline, 0.1-0.25% STS, 0.25-0.5% polidocanol
- Larger varices: 23.4% saline, 0.5-1% STS, 0.75-1.0% polidocanol
After injection, elastic bandages are worn continuously for 3-5 days, then compression stockings for at least 2 weeks. Complications include hyperpigmentation, thrombophlebitis, DVT, allergic reaction, and skin necrosis.
Foam sclerotherapy (sclerosant mixed with air or CO₂) improves efficacy for larger veins via ultrasound guidance.
3. Endovenous Thermal Ablation (First-line for GSV/SSV Reflux)
For truncal (GSV or small saphenous vein) reflux, endovenous ablation is now the preferred treatment over surgery:
Endovenous Laser Ablation (EVLA)
- Laser fiber advanced under ultrasound guidance to the saphenofemoral junction
- Tumescent local anesthesia injected perivenously
- Laser withdrawn, delivering thermal energy to ablate the vein
Radiofrequency Ablation (RFA)
- Same access technique; RFA catheter used instead
- A 2024 meta-analysis (PMID 38316290) comparing EVLA vs RFA found both equally effective, though RFA is associated with less post-procedure pain and bruising
Both techniques offer:
- Durable GSV ablation
- Recurrence and clinical severity scores comparable to open surgery
- Faster recovery than surgical stripping
Risks: DVT, ecchymosis, saphenous nerve injury
- Schwartz's Principles of Surgery, 11th Ed. - 1024
4. Non-Thermal Ablation (Newer Techniques)
- Mechanochemical ablation (MOCA): Combines rotating catheter (endoluminal mechanical injury) with simultaneous sclerosant injection - no tumescent anesthesia required
- Cyanoacrylate adhesive (VenaSeal): Proprietary glue injected under ultrasound to seal the vein - no heat, no tumescent anesthesia, early results are promising
- These are especially useful in patients where tumescent anesthesia is difficult or where nerve proximity is a concern
5. Surgical Treatment
Surgery is reserved for specific indications:
High ligation and stripping of the GSV
- Still preferred for very large GSVs (>2 cm diameter) where endovenous techniques are less reliable
- Performed via groin and below-knee incisions; vein removed with a blunt-tip or invagination pin stripper
- Lower recurrence than saphenofemoral ligation alone
- Complications: ecchymosis, hematoma, lymphocele, DVT, infection, saphenous nerve injury
Stab avulsion phlebectomy (ambulatory phlebectomy)
- Best for large branch varicosities
- 2-mm incisions placed directly over the varicosity; the vein is dissected out and avulsed
- Typically combined with truncal ablation or stripping
- Bleeding controlled with elevation, manual compression, and tumescent anesthesia
6. Treatment of Associated Complications
| Complication | Management |
|---|
| Thrombophlebitis | NSAIDs, compression, anticoagulation if extensive |
| Venous leg ulcer | High-compression bandaging (Cochrane SR: PMID 37497816 supports endovenous ablation to accelerate ulcer healing) |
| Bleeding varicosity | Direct pressure, then elective ablation/excision |
| Hyperpigmentation | Avoid iron deposits; compression |
Summary: Treatment Selection by Scenario
| Presentation | Preferred Treatment |
|---|
| Mild symptoms, small veins | Compression stockings first |
| Telangiectasias / spider veins | Liquid sclerotherapy |
| Truncal (GSV/SSV) reflux, symptomatic | Endovenous ablation (EVLA or RFA) |
| Large GSV (>2 cm), truncal reflux | Surgical stripping |
| Branch varicosities after trunk ablation | Stab avulsion phlebectomy |
| Patients preferring no heat/tumescent | Cyanoacrylate or MOCA |
| Venous leg ulcer | Ablation + compression bandaging |
Current Guidelines (2025)
- Compression therapy as initial management
- Endovenous ablation (thermal or non-thermal) over open surgery for most patients
- Phlebectomy for symptomatic tributary varices without truncal reflux
- Duplex ultrasound to guide all treatment decisions
Sources: Schwartz's Principles of Surgery, 11th Ed.; Bailey and Love's Surgery, 28th Ed.; Pfenninger & Fowler's Procedures for Primary Care, 3rd Ed.; SVS/AVF 2023 guidelines (PMID 37652254); SCAI 2025 guidelines.