EVLT addresses the root cause of varicose veins — the incompetent trunk vein — not just the surface appearance.
How EVLT works
Endovenous Laser Treatment (EVLT) uses a thin laser fiber inserted into a refluxing vein under duplex ultrasound guidance. Laser energy heats the vein wall, closing the diseased vein so blood reroutes through healthier pathways.
EVLT is commonly used for larger incompetent veins — especially the great saphenous vein — when symptoms include heaviness, swelling, and persistent aching. For New York patients with physically demanding schedules or long commutes, treating the source vein first is often the most efficient path to lasting relief.
- Targets the source vein driving reflux
- Performed under ultrasound guidance with local anesthesia
- 45–60 minutes in-office — no hospital stay
- Often covered by insurance when medically necessary
- Immediate walking encouraged after the procedure
How sclerotherapy works
Sclerotherapy uses a sclerosing agent injected directly into a target vein, causing irritation of the lining and gradual closure. The treated vein is reabsorbed by the body over weeks to months.
It is most effective for spider veins, reticular veins, and selected smaller varicose veins. It can also complement EVLT as part of a staged treatment plan once deeper reflux has been corrected.
- No anesthesia required — fine needle injection
- 15–30 minutes per session with no downtime
- Best for spider veins and smaller surface vessels
- Results appear gradually over several weeks
- Often combined with EVLT in a staged plan
Duplex ultrasound drives the treatment decision. The anatomy shown on ultrasound — not the visible vein — determines whether EVLT, sclerotherapy, or a staged combination is appropriate.
What ultrasound findings reveal
The single most important factor in choosing between EVLT and sclerotherapy is what duplex ultrasound shows. If the great saphenous vein or small saphenous vein is refluxing, that source must typically be addressed with EVLT before surface veins are treated — otherwise cosmetic results may be short-lived.
When ultrasound shows no significant reflux and the concern is purely surface vessels, sclerotherapy is often the appropriate first-line treatment.
Patients at our vein disorders clinic who skip ultrasound evaluation frequently end up needing retreatment within one to two years.
Treating surface veins with sclerotherapy before correcting underlying reflux is a common reason for early recurrence. Ultrasound evaluation should come first — every time.
Choosing the right option
The best treatment depends on ultrasound findings, symptom burden, and vein anatomy — not personal preference alone. Larger refluxing trunks often require EVLT first, while visible surface veins may be treated with sclerotherapy after deeper flow is corrected.
In many patients, both treatments are used strategically: EVLT for the source vein and sclerotherapy for residual cosmetic or branch veins. This staged approach is especially common for patients presenting with both symptomatic varicose veins and cosmetic spider veins.
- Significant reflux present → EVLT first, then reassess
- Surface-only veins, no reflux → sclerotherapy may be first-line
- Mixed presentation → staged plan with EVLT followed by sclerotherapy
- Repeat symptoms after previous treatment → new ultrasound to reassess anatomy
Recovery and practical expectations
Both procedures are minimally invasive and typically completed in-office in Manhattan or at our Long Island locations. Walking is encouraged after treatment, and most patients return to daily routines quickly with compression guidance.
Your physician will review activity restrictions, symptom expectations, and follow-up ultrasound timing so results and safety can be monitored.
Plan to wear compression stockings for one to two weeks following EVLT or sclerotherapy. Bring a comfortable pair of walking shoes to your appointment — you will walk out of the office.
Related Treatment Resources
Need Personalized Vein Care?
Schedule a physician-led evaluation and review treatment options tailored to your symptoms and goals.