Introduction to Endovenous Microwave Ablation

Microwave for varicose vein treatment

Endovenous Microwave Ablation (EMWA) is a new, unique and minimally invasive method for treating varicose veins with the use of local anaesthetic.

Until now, Endovenous Laser Ablation (EVLA) has been at the forefront of varicose vein treatment, with EMWA following suit and incorporating the same fundamental idea of EVLA, however utilising a different source of energy with the same end goal of treating the varicose vein condition.

Endovenous ablation sees the destruction of a vein to a degree where it is killed and shrivels away through the insertion of a device into the problematic vein itself. Unlike all other methods of Endovenous Ablation that are used to treat varicose veins, EMWA does not require any contact with the vein wall itself in order to successfully ablate the vein.

Microwave for varicose vein treatment


When practising the EMWA procedure, a patient will undergo a Duplex Ultrasound, carried out by a trained Clinical Vascular Scientist, to identify the problematic veins. Local anaesthetic is then used to numb the area of the skin that is required for this unrivalled treatment.

While proceeding through the EMWA treatment, the patient is tilted with their head tipping downwards to drain any blood out of the vein. This reduces the risk of damage through heat spread, during this varicose vein treatment.

The next step of the EMWA procedure requires the use of a needle to insert an introducer which will then subsequently be used to insert the microwave into the targeted and problematic varicose vein.

A form of microwave catheter will then be inserted into the vein, upon activation the microwave heats the blood components and induces frictional heat from interactions with polar water molecules found in the cells of the vein wall, leading to the denaturation of proteins in the cells and permanently ablates them.

Once the microwave is inserted, local anaesthetic will follow directly after in order to prevent the heat from damaging the tissues and structures adjacent to the vein being performed on.

Whilst microwave treatment is a relatively new method of treating varicose veins, studies conducted have already identified that EMWA typically produces high levels of vein occlusion than those treated with EVLA. EMWA treatment can also have the ability to produce much higher levels of energy which directly correlates with the thoroughness of endothelial damage caused along with vein wall ablation.

Other benefits of EMWA include, significantly lower risks of skin burn due to the much lower temperatures reached at the tip, which is roughly around 80°C. The safety precautions that are also utilised during the EMWA treatment are also not as stringent as those associated with EVLA with no requirement of safety goggles for the medical team or patient compared to that of using a laser. Through these findings we can conclude that the EMWA is most certainly a new and revolutionised way of treating varicose veins.

Microwave for varicose vein treatment

Doctors Trained in Endovenous Microwave Ablation (EMWA) of Varicose Veins

All doctors performing EMWA have to attend an approved EMWA training course. The following doctors have attended the course and have ben certified:

To book onto the Introduction to Endovenous Microwave Ablation Course please follow the link below:

Introduction to Endovenous Microwave Ablation Treatment