EVLT Laser Overview

Endovenous Laser Treatment (EVLT) is a minimally invasive procedure used to treat varicose veins using laser energy.

Why Varicose Veins Occur

Weak vein walls

Poor blood circulation

Prolonged standing or sitting

Blood pooling in lower limbs

1940nm Laser Advantage

Highest absorption in water

More efficient than 1470nm and 980nm

Requires lower power (4–6W)

Safer and more precise

 

Procedure Steps

1. Ultrasound marking
2. Local anesthesia
3. Fiber insertion into vein
4. Laser energy delivery
5. Vein closure
6. Compression applied
7. Immediate recovery

Mechanism of Action

Precision Energy Absorption
The 1940nm laser is selectively absorbed by water in the vein wall, ensuring accurate targeting.

Direct Vein Closure
Thermal energy causes collagen contraction and endothelial damage, sealing the vein.

Natural Absorption
The treated vein gradually fibroses and is naturally absorbed by the body over time.

Key Clinical Advantages

 Virtually Bruise-Free

Since the primary chromophore is water rather than hemoglobin, vessel rupture and erythrocyte extravasation are minimized, resulting in little to no post-treatment bruising.

 Lower Risk of Hyperpigmentation

Energy remains confined within the vessel wall, reducing thermal diffusion into adjacent tissues and significantly lowering the incidence of post-inflammatory hyperpigmentation.

 Concurrent Skin Tightening

Localized thermal stimulation promotes collagen denaturation and remodeling in the dermis, providing a secondary benefit of skin tightening in the treated area.

Enhanced Patient Comfort

The selective and localized action reduces stimulation of perivascular nerves, improving comfort during the procedure and shortening recovery time.