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You should not undergo RFA treatment if you are pregnant and many specialists will not treat patients who are breast feeding.If there is a history of past deep vein thrombosis (DVT), the ultrasound scan will need to pay particular attention to the state of the deep veins. If there is significant deep vein obstruction, RFA may be inadvisable. Other contra-indications include:
· If you have had any previous varicose vein surgery, or phlebitis, then you may not be suitable for radiofrequency ablation and may require another endovenous techniques such as endovenous laser ablation.
· If you are on anticoagulation, you can still undergo radiofrequency ablation but you must tell the doctor as it might modify the technique particularly as to whether phlebectomies are performed.