Endovenous Microwave Ablation (EMWA) is a modern, minimally invasive treatment for varicose veins performed under local anaesthetic. It uses microwave energy delivered inside the affected vein to heat and close it permanently. Unlike traditional vein stripping, which can lead to recurrence, EMWA works by heating the water within the vein wall cells, causing controlled ablation and sealing of the faulty vein. The procedure is performed using ultrasound guidance to ensure accuracy, and it allows patients to walk home shortly after treatment. The Whiteley Clinic introduced EMWA to the UK in 2019 and remains one of the first centres to perform it regularly.
Who are the best candidates?
Who are the best candidates?
The best candidates for EMWA are patients with large varicose veins or incompetent truncal and perforator veins identified through a venous duplex ultrasound scan. This treatment is particularly effective for those whose veins are too large or tortuous for standard laser or radiofrequency techniques. As EMWA devices are slightly larger, patients with smaller veins may not be suitable. Ideal candidates are typically seeking a long-term, minimally invasive solution under local anaesthetic without the downtime of surgical stripping. A full diagnostic assessment using The Whiteley Protocol determines who can safely benefit from this treatment.
Treatment Details
Treatment Details
EMWA is a day-case procedure performed under local anaesthetic using ultrasound guidance. After numbing the skin, a fine catheter is inserted into the target vein through a tiny needle puncture. The patient is positioned head-down to empty the vein of blood. Local anaesthetic fluid is then injected around the vein to protect surrounding tissue. Once the microwave catheter is in place, controlled energy is applied to heat the vein wall, causing it to close permanently. The procedure typically takes 30–60 minutes, and patients can walk immediately after treatment.
Anaesthetic Details
Only local anaesthetic is required for EMWA, meaning patients remain fully awake and comfortable throughout. The local anaesthetic solution, known as tumescent anaesthesia, is injected around the vein using ultrasound guidance. This not only prevents pain but also insulates surrounding tissues and skin from heat damage during the procedure. As a result, EMWA avoids the risks associated with general anaesthesia and allows for a quicker recovery.
Number of treatment Sessions
Most patients require just one EMWA session per affected vein, as the treatment permanently closes the targeted vein. In cases where multiple veins or both legs are involved, further sessions may be recommended as part of a personalised treatment plan. The Whiteley Protocol ensures that all underlying incompetent veins are treated first, minimising the need for repeat ablations in the future.
Pain Level
EMWA is designed to be a comfortable procedure. Patients may feel mild pressure or warmth during the treatment, but significant pain is very uncommon thanks to the local anaesthetic. After the procedure, a small amount of tenderness or tightness may be experienced along the treated vein for a few days, but this typically resolves quickly and does not interfere with normal activities.
Price Range
The exact cost of EMWA depends on the number and size of veins treated, as well as whether one or both legs are involved. At The Whiteley Clinic, prices are in line with other advanced endovenous procedures such as laser and radiofrequency ablation. All consultations include a duplex ultrasound scan to design a bespoke treatment plan, and the clinic provides clear pricing before treatment begins.
Financial Aids
The Whiteley Clinic does not currently offer formal financial aid or instalment plans for EMWA. Patients are encouraged to discuss payment options with the clinic’s administration team before booking. Transparent pricing and detailed consultation ensure that patients fully understand the costs associated with their personalised treatment plan.
Recovery Time & Aftercare
Recovery Time & Aftercare
Recovery following EMWA is rapid. Most patients return to normal activities within hours and to exercise within a few days. Walking immediately after treatment is encouraged to promote circulation and healing. Compression stockings may be advised for a short period to reduce minor swelling or bruising. Follow-up ultrasound scans are arranged to confirm that the treated vein has fully closed and that no new refluxing veins are present.
Potential side effects and risks
Potential side effects and risks
As with all minimally invasive vein procedures, EMWA carries very low risks. Temporary bruising, mild swelling, or a tight sensation along the treated vein are common but resolve naturally. Serious complications are rare, particularly when the procedure is performed under The Whiteley Protocol. The use of local anaesthetic fluid and ultrasound guidance protects nearby tissues, and strict clinical standards are followed to avoid skin burns or nerve irritation.
Clinical Success Rate
Clinical Success Rate
Early clinical studies and ongoing results at The Whiteley Clinic indicate that EMWA achieves a success rate comparable to established endovenous laser and radiofrequency treatments. When performed correctly using the optimal power settings, EMWA provides durable closure of targeted veins with excellent long-term outcomes.
Recurrence Rate after 5 years
Recurrence Rate after 5 years
Although EMWA is a relatively new technique in the UK, early outcomes and laboratory research from The Whiteley Clinic suggest that recurrence rates are expected to be very low, similar to other endovenous thermal ablation methods. By following The Whiteley Protocol — treating all underlying refluxing veins and using precise energy delivery — the risk of vein recurrence within five years is anticipated to remain minimal.
The Whiteley Clinic Locations
London
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Guildford
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Manchester
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Bristol
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Poole
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Liverpool
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Contact Detail
Contact Detail
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