Endovenous Laser Ablation (EVLA)
Learn about Endovenous Laser Ablation (EVLA) in Singapore, a minimally invasive treatment for varicose veins and venous reflux provided by Dr. Manish Taneja from the Supreme Vascular and Interventional Clinic. Understand how EVLA works, benefits, risks and recovery.

Endovenous Laser Ablation (EVLA) in Singapore
Minimally Invasive Laser Treatment for Varicose Veins
Endovenous laser ablation (EVLA) is a minimally invasive treatment used to treat varicose veins caused by faulty or refluxing veins.
Varicose veins develop when the valves inside a vein do not work properly, allowing blood to flow backwards and pool within the vein. This can cause veins to become enlarged, twisted and more visible beneath the skin.
During EVLA, a thin laser fibre is inserted into the affected vein under image guidance. Laser energy is then delivered along the vein, causing the vein to close.
Blood continues to return through other healthy veins, while the treated vein is gradually absorbed by the body.
At the Supreme Vascular and Interventional Clinic, venous treatment is led by Dr. Manish Taneja, a dual-trained neurointerventional and peripheral vascular intervention specialist.
With expertise spanning the brain and body, our clinic provides specialist-led vascular assessment, minimally invasive treatment and continuity of care under one roof.
Treatment Overview
| Treatment Type | Minimally invasive endovenous procedure |
|---|---|
| Also Known As | Endovenous laser therapy, laser vein ablation |
| Commonly Used for | Varicose veins and venous reflux |
| Treatment goal | Close the faulty vein and redirect blood through healthier veins |
| How it works | Laser energy is delivered through a thin fibre to close the affected vein |
| Procedure Guidance | Ultrasound-guided |
| Anaesthesia | Usually local anaesthesia |
| Follow-Up | Clinical review and ultrasound may be recommended |
| Performed By | Dr. Manish Taneja, dual-trained neurointerventional and peripheral vascular intervention specialist |
What Is Endovenous Laser Ablation?
Endovenous laser ablation is a minimally invasive procedure used to close an unhealthy vein that is contributing to venous reflux and varicose veins.
Healthy leg veins contain valves that help blood move upwards towards the heart. When these valves become weak or damaged, blood can flow backwards and collect within the vein.
This is known as venous reflux. Over time, increased pressure can cause veins to become enlarged and visible, resulting in varicose veins.
EVLA treats the faulty vein from inside the vessel.
A thin laser fibre is inserted into the vein and laser energy is delivered along the affected section. The heat causes the vein to close. The body gradually absorbs the treated vein, while blood is redirected through healthier veins.

How Does EVLA Work?
Closing the Faulty Vein From Inside
Before treatment, ultrasound imaging is used to identify the affected vein and assess the pattern of venous reflux. A small entry point is made and a thin laser fibre is guided into the affected vein.
Local anaesthetic is used around the vein to improve comfort during treatment. Laser energy is delivered through the fibre along the targeted section of the vein.
The heat causes the vein walls to close and seal. The laser fibre is removed once treatment is complete, and blood flow is redirected through healthier veins.
Key Difference: EVLA uses laser energy to close the faulty vein, while treatments such as VenaSeal use a medical adhesive and radiofrequency ablation uses radiofrequency energy.
When Might EVLA Be Recommended?
EVLA may be considered for patients with varicose veins caused by significant venous reflux.
Your specialist will consider:
- Your symptoms
- The appearance and extent of your varicose veins
- The pattern of venous reflux
- Ultrasound findings
- The veins affected
- Your medical history
- Previous vein treatments
- Your treatment goals
- Whether another minimally invasive treatment may be more appropriate
Symptoms associated with varicose veins may include:
- Aching or heaviness in the legs
- Leg swelling
- Pain after prolonged standing
- Itching around varicose veins
- Skin changes
- Night-time leg discomfort
- Visible enlarged or twisted veins
Not every varicose vein requires treatment.
Your specialist will first determine whether the symptoms and underlying venous reflux warrant intervention.
Potential Benefits of EVLA
Minimally Invasive Treatment for Venous Reflux
For appropriately selected patients, EVLA may provide several potential benefits.
Minimally Invasive
EVLA is performed through a small entry point rather than through open vein surgery.
Treats the Underlying Faulty Vein
The procedure targets the vein responsible for the abnormal blood flow rather than simply treating visible surface veins.
Ultrasound Guided
Imaging allows the specialist to identify the affected vein and guide treatment precisely.
No Surgical Vein Removal
The treated vein is closed rather than surgically removed.
Varicose Vein Symptoms Improvement
Closing a refluxing vein may help reduce symptoms associated with venous insufficiency.
Can Be Combined With Other Treatments
Additional procedures may be considered for remaining visible veins depending on the individual's condition.
Important reminder: Treatment results vary between patients. EVLA is appropriate only when the underlying vein anatomy and venous reflux pattern support this approach.
EVLA vs Radiofrequency Ablation
Understanding the Difference
EVLA and radiofrequency ablation are both minimally invasive treatments that use heat to close faulty veins.
| EVLA | Radiofrequency Ablation |
|---|---|
| Uses laser energy | Uses radiofrequency energy |
| A laser fibre is inserted into the affected vein | A radiofrequency catheter is inserted into the affected vein |
| Heat closes the vein | Heat closes the vein |
| Blood is redirected through healthier veins | Blood is redirected through healthier veins |
| Ultrasound is used to guide treatment | Ultrasound is used to guide treatment |
Both treatments may be suitable for selected patients with venous reflux. The appropriate treatment depends on your vein anatomy, ultrasound findings, symptoms and individual circumstances.
EVLA vs VenaSeal
Different Ways of Closing a Faulty Vein
EVLA and VenaSeal are both minimally invasive treatments for selected varicose veins, but they use different methods. Your specialist can assess which treatment is most appropriate based on your venous anatomy and treatment goals.
| EVLA | Venaseal |
|---|---|
| Uses laser energy | Uses medical adhesive |
| Heat closes the affected vein | Adhesive seals the affected vein |
| Usually involves local anaesthesia around the vein | May require less anaesthetic depending on the treatment |
| Uses a laser fibre | Uses a specialised delivery catheter |
| Blood is redirected through healthier veins | Blood is redirected through healthier veins |
EVLA and Foam Sclerotherapy
Foam sclerotherapy is another minimally invasive treatment used for selected varicose and smaller veins.
Instead of using heat to close a vein, foam sclerotherapy involves injecting a specialised solution into the targeted vein.
EVLA is generally used to treat an underlying refluxing vein, while foam sclerotherapy may be used for selected remaining or smaller varicose veins.
In some patients, different treatments may be combined as part of an individualised treatment plan.
What Are the Potential Risks and Limitations?
Understanding the Risks of EVLA
EVLA is generally a minimally invasive procedure, but like any medical treatment it carries potential risks.
Potential risks may include:
- Bruising
- Tenderness along the treated vein
- Temporary swelling
- Skin irritation or changes in sensation
- Inflammation of the treated vein
- Recurrence or development of new varicose veins
Your individual risk depends on your vein anatomy, medical history and the treatment performed.
Your specialist will discuss the potential benefits, risks and alternative treatments before recommending EVLA.
Recovery After EVLA
What Can You Expect After Treatment?
Recovery following EVLA is generally shorter than recovery from traditional surgical vein removal, although individual recovery varies.
After treatment, you may be advised to:
- Walk regularly
- Avoid prolonged periods of standing or sitting
- Follow wound-care instructions
- Take prescribed medication when required
- Wear compression if recommended
- Attend follow-up appointments
- Return gradually to normal activities according to your specialist's advice
Some patients experience bruising, tightness or tenderness along the treated vein during the early recovery period.
Follow-up ultrasound may be recommended to assess the treated vein and check the surrounding circulation.
Your EVLA Treatment Journey
| Step | Stage | Description |
|---|---|---|
| 1 | Specialist Consultation & Vein Assessment | Review your symptoms, medical history and concerns about your varicose veins. |
| 2 | Ultrasound Vein Mapping | Identify venous reflux and determine which veins are contributing to your symptoms. |
| 3 | Individualised Treatment Planning | Determine whether EVLA or another minimally invasive vein treatment is appropriate. |
| 4 | Ultrasound-Guided Access | Insert a thin laser fibre into the affected vein through a small entry point. |
| 5 | Local Anaesthesia | Apply local anaesthetic around the treated vein to improve comfort. |
| 6 | Laser Vein Ablation | Deliver controlled laser energy to close the faulty vein. |
| 7 | Recovery & Follow-Up | Begin recovery with personalised aftercare and follow-up when required. |
Why Choose the Supreme Vascular and Interventional Clinic for EVLA?
Brain-to-Body Vascular Expertise Under One Roof
Varicose veins are a common vascular condition, but effective treatment starts with understanding the underlying venous circulation.
At the Supreme Vascular and Interventional Clinic, care is led by Dr. Manish Taneja, a dual-trained neurointerventional and peripheral vascular intervention specialist.
Specialist Vascular Expertise
Treatment is guided by detailed understanding of the venous and arterial systems rather than treating the visible veins alone.
Brain-to-Body Expertise
Dr. Manish Taneja's expertise spans neurointerventional and peripheral vascular intervention, providing comprehensive vascular knowledge across the body.
Minimally Invasive Treatment
EVLA treats the underlying faulty vein through a small catheter entry point rather than traditional surgical vein removal.
Ultrasound-Guided Planning
Detailed ultrasound assessment helps identify venous reflux and determine which veins should be treated.
Personalised Treatment
Not every patient needs the same vein procedure. Treatment is selected according to your symptoms, vein anatomy and treatment goals.
Continuum of Care
From assessment and ultrasound imaging through treatment and follow-up, our specialized clinic provides continuity of specialist vascular care under one roof.
Frequently Asked Questions About EVLA
What is EVLA used for?
EVLA is commonly used to treat selected varicose veins caused by underlying venous reflux.
Is EVLA a minimally invasive treatment?
Yes. EVLA is performed through a small catheter entry point rather than traditional surgical removal of the vein.
How does EVLA treat varicose veins?
Laser energy is delivered through a thin fibre inside the affected vein, causing the vein to close so blood can return through healthier veins.
Is EVLA painful?
Local anaesthetic is used around the treated vein to improve comfort. Some patients may experience temporary tenderness, bruising or tightness afterwards.
How long does EVLA take?
Treatment time varies depending on the number and complexity of veins being treated and the individual's anatomy. It generally takes 1 hour depending on the number of veins and legs treated.
Can EVLA treat all varicose veins?
No. EVLA is most appropriate when ultrasound identifies suitable underlying venous reflux. Other treatments may be more appropriate for certain veins.
What is the difference between EVLA and radiofrequency ablation?
Both treatments use heat to close a faulty vein. EVLA uses laser energy, while radiofrequency ablation uses radiofrequency energy.
What is the difference between EVLA and VenaSeal?
EVLA uses laser energy to close the vein, while VenaSeal uses a medical adhesive to seal the affected vein.
Can EVLA and other varicose vein treatments be combined?
Yes. Depending on the patient's vein anatomy, additional treatments such as foam sclerotherapy may be considered for remaining varicose veins.
Can varicose veins return after EVLA?
New varicose veins can develop over time, and some veins may remain or become affected by venous reflux in the future. Follow-up is therefore important.
What happens after EVLA?
Patients can usually begin walking soon after treatment and receive personalised advice about activity, compression, medication and follow-up. EVLA is performed as an outpatient, clinic-based procedure with same-day admission and discharge (no overnight hospital stay is required).
Specialist Assessment for EVLA in Singapore
Effective varicose vein treatment starts with understanding why the veins have become enlarged and whether underlying venous reflux is present. At the Supreme Vascular and Interventional Clinic, Dr Manish Taneja provides specialist vascular assessment, ultrasound review and personalised treatment planning for patients with varicose veins and other venous conditions.
With expertise spanning the brain and body, our specialized clinic provides minimally invasive vascular treatment and a continuum of specialist care under one roof. If you have varicose veins, symptoms of venous reflux, have been referred for EVLA or are considering your treatment options, our team can help you understand your condition and the most appropriate treatment approach.

