Management of Varicose Veins
Endovenous thermal ablation (radiofrequency or laser) is the first-line treatment for symptomatic varicose veins with documented saphenofemoral or saphenopopliteal junction reflux ≥500ms and vein diameter ≥4.5mm, followed by foam sclerotherapy for tributary veins 2.5-4.5mm in diameter. 1, 2
Initial Conservative Management
Before proceeding to interventional treatment, patients must complete a documented 3-month trial of conservative therapy including: 1, 2
- Medical-grade gradient compression stockings (20-30 mmHg minimum pressure) worn daily 1
- Leg elevation above heart level for 30 minutes, 3-4 times daily 3
- Regular exercise focusing on calf muscle pump activation 3
- Weight loss if BMI >25 to reduce venous pressure 3
- Avoidance of prolonged standing (>30 minutes without movement) 3
Conservative therapy alone is appropriate only for asymptomatic varicose veins or when patients decline intervention. 4, 5 Recent evidence shows compression stockings do not prevent disease progression when significant reflux is present. 1
Diagnostic Requirements Before Intervention
Duplex ultrasound performed within 6 months is mandatory before any interventional therapy, documenting: 1, 2
- Reflux duration at saphenofemoral junction (SFJ) or saphenopopliteal junction (SPJ) - pathologic if ≥500 milliseconds 1, 2
- Vein diameter measured at specific anatomic landmarks - minimum 4.5mm for thermal ablation, 2.5mm for sclerotherapy 1, 2
- Exact location and extent of refluxing segments 1
- Deep venous system patency to exclude thrombosis 1
- Incompetent perforating veins if present 1
Evidence-Based Treatment Algorithm
Step 1: Treat Main Saphenous Trunks with Junctional Reflux
For veins ≥4.5mm diameter with reflux ≥500ms at SFJ or SPJ: 1, 2
- Endovenous thermal ablation (radiofrequency or laser) achieves 91-100% occlusion rates at 1 year 1, 2, 6
- Performed under ultrasound guidance with local tumescent anesthesia 2
- Same-day discharge with rapid return to normal activities 2
- Superior long-term outcomes compared to foam sclerotherapy alone (which has 20-28% recurrence at 5 years) 1
Critical principle: Treating junctional reflux is mandatory before or concurrent with tributary treatment to prevent recurrence from persistent downstream venous hypertension. 1 Chemical sclerotherapy alone without addressing junctional reflux has significantly worse outcomes at 1-, 5-, and 8-year follow-up. 1
Step 2: Treat Tributary and Accessory Veins
For veins 2.5-4.5mm diameter or residual tributaries after thermal ablation: 1
- Foam sclerotherapy (including polidocanol/Varithena) achieves 72-89% occlusion rates at 1 year 1, 6
- Ultrasound guidance is mandatory for safe administration 1
- Can be performed concurrently with or after thermal ablation 1
- Appropriate for accessory saphenous veins and tortuous segments unsuitable for catheter-based ablation 1
For bulging tributary veins >4mm: 1
- Ambulatory phlebectomy (stab phlebectomy) is more appropriate than sclerotherapy 1
- Must be performed concurrently with junctional treatment to meet medical necessity 1
- Avoid common peroneal nerve near fibular head to prevent foot drop 1
Step 3: Surgery (Third-Line)
High ligation and stripping is reserved for: 6, 7
- Cases where endovenous techniques are not feasible (extreme tortuosity, very large diameter >12mm) 1
- Failed endovenous ablation with persistent symptoms 6
- Patient preference after counseling on higher complication rates 2
Surgery has similar long-term efficacy to thermal ablation but higher rates of bleeding, hematoma, wound infection, paresthesia, and longer recovery. 2, 6
Treatment Outcomes and Complications
Expected Success Rates
- Thermal ablation: 91-100% occlusion at 1 year 1, 2, 6
- Foam sclerotherapy: 72-89% occlusion at 1 year 1, 6
- Surgery: Similar long-term efficacy but more complications 2, 6, 7
Complications to Counsel Patients About
- Nerve damage from thermal injury: ~7% (usually temporary) 1, 2
- Deep vein thrombosis: 0.3% 1, 2
- Pulmonary embolism: 0.1% 1, 2
- Skin burns, hematoma, phlebitis (self-limited) 1
Foam sclerotherapy: 1
- Phlebitis (common, self-limited) 1
- Residual pigmentation at injection sites 1
- New telangiectasias 1
- Transient colic-like pain (resolves within 5 minutes) 1
- Deep vein thrombosis: rare (~0.3%) 1
Special Clinical Scenarios
Patients with Venous Ulceration (CEAP C5-C6)
Do not delay intervention for compression therapy trial. 1 Endovenous thermal ablation should be performed promptly as ulceration represents advanced disease requiring treatment of underlying reflux for wound healing. 1, 2
Patients with Skin Changes (CEAP C4)
Patients with hemosiderin staining, corona phlebectasia, lipodermatosclerosis, or stasis dermatitis require intervention to prevent progression even without severe pain. 1 These skin changes indicate moderate-to-severe venous disease warranting treatment. 1
Recurrent Varicose Veins After Prior Treatment
- Serial ultrasound is required to document new reflux in previously treated segments or identify untreated segments 1
- Foam sclerotherapy is appropriate for residual refluxing segments after prior thermal ablation 1
- Repeat thermal ablation may be needed if main trunk has recanalized 1
Common Pitfalls to Avoid
- Treating tributaries without addressing junctional reflux leads to 20-28% recurrence at 5 years 1
- **Treating veins <2.5mm diameter** results in only 16% patency at 3 months (vs. 76% for veins >2.5mm) 1
- Performing sclerotherapy without ultrasound guidance increases risk of complications and reduces efficacy 1
- Inadequate documentation of reflux duration and vein diameter prevents appropriate treatment selection and increases recurrence 1, 2
- Delaying intervention in patients with ulceration while attempting prolonged compression therapy trials 1
Post-Procedure Management
- Compression stockings (20-30 mmHg) for 1-2 weeks post-procedure optimize outcomes 2
- Early mobilization immediately after procedure reduces thrombotic risk 2
- Duplex ultrasound at 2-7 days post-thermal ablation to detect endovenous heat-induced thrombosis 1
- Follow-up ultrasound at 3-6 months to assess treatment success and identify residual incompetent segments 1
Pharmacological Adjuncts
Oral medications have limited evidence but may provide symptomatic relief: 5
These are appropriate only as adjuncts to compression or intervention, not as standalone therapy for significant varicose veins. 5