February 9, 2019
EVLT takes roughly 45 minutes and is performed as an outpatient procedure using local anesthesia. It involves minimal pain, no scarring, quick recovery and immediate return to most normal routines.
What is EVLT?
Until recently, the only treatment option available for venous insufficiency was a major surgery called vein stripping. Vein stripping is an invasive procedure with a long recovery that frequently failed after a few years. Over the past decade, a revolutionary new treatment has been developed. The procedure is performed by interventional radiologists, who are experts in imaging and minimally invasive treatments.
This new treatment, called endovenous laser ablation (EVLT), is an outpatient procedure performed using ultrasound imaging guidance. Instead of pulling the vein out, as is done in vein stripping, the problematic vein is gently heat sealed shut from the inside using a sophisticated laser fiber. This is done through an opening in the skin not much larger than needed for a typical IV.
After applying local anesthetic to the skin, the interventional radiologist inserts a catheter, which is like an IV, into the vein. An ultrasound is used to expertly guide the catheter up the vein to an exact location. After numbing the area around the vein, laser energy is then applied to the inside of the vein, heating the vein and sealing it closed. By closing the problematic vein, the twisted and varicosed branch veins closest to the skin also shrink and improve in appearance. Once the diseased veins are closed, the blood is rerouted to normal, healthy deep veins causing the pain and symptoms to begin to disappear.
What are the benefits of EVLT?
EVLT is minimally invasive, requiring no surgical incision or visible scars, and is generally performed as an outpatient procedure. With a high success rate up to 97% and a low recurrence compared to surgery, EVLT vein therapy is extremely safe and requires minimal recovery time. Patients are often encouraged to walk and resume most normal activities the same day.
What do I need to do to prepare for EVLT?
To prepare for EVLT, patients must not shave their legs or apply moisturizer the day of treatment. However, it is important to wash the leg with antibacterial soap the morning of the procedure.
It is also important to wear loose-fitting pants and loose shoes to allow room for thick bandages and compression garments. You must also bring your prescription Class II stockings with you. Failure to do so will require your appointment to be rescheduled for a later date. We also ask that you not schedule any long car or plane rides for at least two weeks after your procedure.
What can I expect during the procedure?
A sonographer will first perform a limited ultrasound. You will be asked to stand for five minutes, after which your varicosities will be marked using a VeinLite marker.
The EVLT tube, or catheter, will be inserted into the vein under ultrasound control, and the tip is positioned at the top of the vein. Once the laser tip is confirmed in place and the device is turned on, the laser is slowly retracted over 2-3 minutes, a process which the patient generally does not feel. Compression is then applied by a combination of bandages and compression garments.
You may need to return later to complete treatment with ultrasound-guided sclerotherapy of the residual varicosities.
Are there any limitations or restrictions following EVLT?
After your procedure, you will wear compression stockings for two weeks. With the exception of heavy exercise, you will be encouraged to walk immediately and can resume most normal activity. If you experience minor soreness and bruising, you can take over-the-counter medication as needed. Periodic ultrasound examinations will confirm that the vein remains closed.
What can I expect following EVLT?
You may experience mild pain for several days following the procedure, which is usually improved by walking or by taking over the counter pain medication. (Note: Do not take Ibuprofen, as it may interfere with the vein closing.) You may also experience some inflammation and bruising around the treated areas.
What are the possible complications of EVLT?
Complications are rare, but can occur even when the procedure is technically successful. Such complications include severe bruising, prolonged redness and/or tenderness around the puncture sites or over the treated vein, infection of the puncture site (thrombophlebitis), clots extending into the important deep veins (deep vein thrombosis), and burning of the skin.