Fotona’s Endovenous Laser Ablation (EVLA) works on the principle of ablation and photocoagulation of the vein's inner layers by laser-induced thermal effects. Because laser treatments have proven less invasive, with a lower complication rate and exceptional patient tolerability, EVLA is increasingly replacing classical surgical stripping and ligation
In Fotona’s EVLA treatment an optical fi ber is inserted into the to-be-treated vein, and QCW Nd:YAG laser energy is directed into the interior of the vein. The vein contracts as the vein wall is destroyed while the optical fi ber is slowly withdrawn. This leads to occlusion of the vein, and the healthy veins that surround the closed vein can then restore the normal fl ow of blood to the treated area.
The procedure is preformed under local anesthetic and can be completed in just under an hour, depending on the size and number of varicose veins. The general steps of the treatment are as follows:
Step 1 - ACCESS: Puncturing of the vein with G19 needle under ultra sound control creates an entry hole in order to allow the laser fi ber to be inserted into the vein through a catheter. Ultrasound is also used in order to properly position the fi ber in the vein.
Step 2 - PROTECT: Tumescent anesthesia is delivered through a syringe or by using a special pump. Tumescent anesthesia has analgesic and vasoconstrictor effects; it also creates a cold shield in the vein to protect the surrounding tissue.
Step 3 - OCCLUDE: Laser energy from 1064 nm Nd:YAG laser is delivered to the desired location inside the vein by using a bare laser fi ber inside a catheter. The laser is repeatedly fi red
as it is gradually withdrawn, depositing the thermal energy into the blood and vein wall.
Fotona’s QCW* Nd:YAG wavelength has the ability to optimally deliver laser energy into vein walls. Its high precision and level of absorption in hemoglobin limits undesirable mechanical and thermal effects in the surrounding tissues.
Fig. 2A: During operation - catheter with fi ber visible in vein. Fig. 2B: 6 weeks post-op - the vein has been completely occluded and is fully overgrown by surrounding tissue. (Courtesy of dr. Šikovec)
A growing number of surgeons consider Fotona’s QCW Nd:YAG to be the laser of choice for endovascular treatments, especially in terms of treatment efficacy, speed, patient comfort and cost. Fotona’s laser systems have a user-interface that is designed from a surgeon's perspective, offering a full view of
all treatment parameters on one screen. At the touch of a button, the laser system accommodates laser parameters to the application, providing unrivalled convenience.
The high performance, selectivity and precision (limiting thermal effects to the target tissue) of Fotona’s EVLA treatment allow for minimal patient discomfort, exceptional success rates and shortened recovery times. Additionally, because the procedure can be performed through a small incision, it won't leave any scaring.
EVLA can be performed with any Fotona QCW Nd:YAG laser system. Fotona additionally offers an EVLA Upgrade Kit, giving practitioners the necessary knowledge, accessories and tools to confidently and skillfully perform Endovenous Laser Ablation on their patients. Training in EVLA is provided through Fotona's partnership with the Laser and Health Academy, where participants cover basic laser physics and gain an in- depth understanding of laser-tissue interaction. Live demonstrations give participants an insight in EVLA and other surgical procedures that can be performed with Fotona lasers.
QCW is available with the following Fotona laser systems: SP and XP Dynamis, SP and XP Spectro