How Does EVLA Work to Seal Damaged Veins from the Inside?
If you are researching treatment for varicose veins or venous reflux, you may come across EVLA, or endovenous laser ablation. Unlike traditional surgical approaches that may involve removing sections of a problematic vein, EVLA is designed to treat certain affected veins from the inside.
During EVLA, a thin laser fibre is positioned within the targeted vein. Controlled laser energy is then used to heat the vein wall, causing it to close. Blood is redirected through other functioning veins, while the treated vein is gradually broken down and absorbed by the body.
At Atrium Vascular, we provide specialized vascular services for referred patients from Richmond Hill, Markham, Vaughan, Aurora, Scarborough, North York, and communities throughout the Greater Toronto Area (GTA).
Why Would a Vein Need to Be Sealed?
Healthy leg veins contain one-way valves that help blood travel toward the heart. Because blood in the legs must move upward against gravity, these valves help prevent it from flowing backward. When the valves within certain veins become ineffective, blood may travel backward and collect within the vein. This is known as venous reflux.
The resulting increase in pressure can contribute to enlarged or twisted varicose veins and symptoms such as aching, heaviness, swelling, throbbing, or itching. Over time, some people with more advanced venous disease may also experience skin discolouration, changes in skin texture, or wounds around the lower legs.
EVLA may be considered when assessment identifies an appropriate superficial vein affected by reflux.
What Does EVLA Mean?
EVLA stands for endovenous laser ablation. “Endovenous” means that the treatment takes place from inside the vein, while “ablation” refers to intentionally closing the targeted vein.
You may also encounter the term EVLT, or endovenous laser treatment. EVLA and EVLT are commonly used to describe the same general laser-based approach to vein closure.
The important distinction is that the affected vein is not necessarily physically removed. Instead, it is treated internally so that it closes and is no longer part of the active pathway carrying blood.
How Does the Laser Get Inside the Vein?
EVLA generally begins with ultrasound guidance. Ultrasound allows the healthcare professional to identify the targeted vein and guide treatment.
A small access point is created, and a thin laser fibre is introduced into the vein. The fibre is carefully positioned along the section of vein being treated.
Local anaesthetic is commonly used around the treatment area. Your healthcare team should explain the specific preparation, anaesthesia, and procedural steps that apply to your treatment.
How Does Laser Energy Seal the Vein?
Once the laser fibre is appropriately positioned, controlled laser energy is delivered from inside the vein.
The energy generates heat that affects the vein wall. As treatment progresses along the targeted section, the vein closes.
The objective is not to burn away or instantly remove the vein. Instead, the procedure causes the treated vein to close so blood no longer travels through that problematic pathway. Over time, the body gradually breaks down and absorbs the closed vein.
What Happens After the Vein Is Sealed?
Recovery varies between patients and should follow the instructions provided by the healthcare team responsible for the procedure.
Patients may receive guidance regarding walking, work, exercise, bathing, and care of the treatment area. Temporary bruising, tenderness, tightness, or discomfort may occur following treatment.
Compression stockings may also be recommended after certain vein procedures. If compression is part of your recovery plan, follow the specific instructions provided regarding fit, pressure, and how long the stockings should be worn.
If symptoms following treatment are significantly different from what you were told to expect, contact your treating healthcare provider.
Does EVLA Permanently Fix Venous Disease?
EVLA is intended to close a specific problematic vein, but it does not guarantee that a patient will never develop another varicose vein or experience future venous problems.
Venous disease can involve multiple vessels, and new or recurrent varicose veins may develop over time. Follow-up, monitoring, or additional treatment may therefore be appropriate for some patients.
Expected outcomes, potential risks, alternatives, and the possibility of recurrence should be discussed with your vascular specialist.
What Makes Us Unique
At Atrium Vascular, we recognize that understanding why a vein is being treated is just as important as understanding the procedure itself. Our approach emphasizes specialized vascular expertise, individualized assessment, patient-centred care, and clear communication.
For referred patients, we evaluate relevant symptoms and clinical findings before discussing vascular care options that may be appropriate for their individual circumstances.
Atrium Vascular provides specialized vascular services for referred patients from Richmond Hill, Markham, Vaughan, Aurora, Scarborough, North York, and communities throughout the Greater Toronto Area.
Have Questions About EVLA?
If you have questions about the vascular services available at Atrium Vascular, including general information about EVLA and endovenous laser procedures, our clinic can provide service information and explain the referral process.
A medical referral is required to see Dr. Sydney Wong. If you have varicose veins, swelling, aching, heaviness, skin changes, or another concern and would like to determine whether EVLA or another treatment may be medically appropriate, please speak with your family physician or primary healthcare provider about whether a referral to Dr. Sydney Wong is appropriate for you.
