Opening Hours

Monday-Tuesday-Thursday: 9:00am - 5:00pm      Wednesday: 7:00 am - 5:00 pm
Friday-Satuday-Sunday: Closed

Davenport Rd

Toronto, ON,
M5R 1J3

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Radiofrequency (Closure™)

Endovenous Radiofrequency Ablation For Varicose Veins

At The Vein Institute of Toronto™, we have developed our own method of performing Endovenous Radiofrequency Ablation (EVRFA) for varicose veins through our research, patient feedback, extensive procedure experience and use of the latest medical technology. At The Vein Institute of Toronto™, we utilize the ClosureFast™ catheter, the latest in technology, that enables controlled vein lumen contraction for a fast and effective treatment. We also utilize a unique micropuncture technique to insert the radiofrequency catheter, which minimizes patient discomfort and has led to a 98% technical success rate in performing the procedure.

Dr. Sanjoy Kundu and his team of professionals, perform one of the largest volumes of VNUS® ClosureFast™ Endodovenous Radiofrequency Ablation procedures in Canada and North America. The Vein Institute Of Toronto is recognized as a training and luminary site for the EVRFA procedure for other physicians.

What is Endovenous Radiofrequency Ablation?

The Endovenous Radiofrequency Ablation (EVRFA) procedure is a minimally invasive treatment that uses radiofrequency (RF) energy to effectively treat patients suffering from varicose veins or Chronic Venous Insufficiency (CVI). Our Vein Institute Of Toronto specialist, Dr. Sanjoy Kundu, inserts a catheter into a varicose vein to provide consistent and uniform heat to contract the collagen in the vein walls, causing them to collapse and close. After the vein is sealed shut, blood is then naturally redirected to healthy veins. The vein simply becomes fibrous tissue after treatment. Over time, the vein will be completely absorbed into the surrounding tissue.

What Are The Benefits Of The VNUS Closure™ procedure?

Tumescent Anesthesia: Painless Endovenous Radiofrequency Ablation

Tumescent anesthesia is one of the major advances in vein surgery. Tumescent means swelling or distention. When we administer tumescent anesthesia, the tissues are flooded with dilute liquid anesthetic and become distended giving an appearance resembling the outside of an orange. The unique feature of tumescent anesthesia is that it involves the use of a very low concentration of local anesthetic. he anesthesia achieved by this technique is excellent and has a prolonged duration, allowing the patient to get home long before the anesthesia wears off. Additionally, the post-operative discomfort seems remarkably diminished.

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Consultation Today!

Learn more about what treatment options are available and which one is right for you. You don’t need a doctor’s referral to get your varicose veins treated–call us today to schedule an OHIP Covered consultation with our vein specialist.


The Vein Institute
217 Davenport Road,
Toronto, Ontario
M5R 1J3


Monday: 9:00 am - 5:00 pm
Tuesday: 9:00 am - 5:00 pm
Wednesday: 7:00 am - 5:00 pm
Thursday: 9:00 am - 5:00 pm
Friday: Closed
Saturday: Closed
Sunday: Closed