EVLT stands for EndoVenous Laser Therapy. After radiofrequency ablation (Closure) became available, laser companies developed a laser system designed for the same purpose. Unfortunately, laser is a less controllable source of heat and there is generally more bruising and pain with the procedure because of damage to tissues around the vein. It was attractive to surgeons because it was faster than the original Closure procedure. The new ClosureFAST catheter, however, is as fast or faster than laser, but with the advantage of less tissue trauma. We don’t use EVLT at Vein Surgery and Treatment Center.