Non-surgical varicose vein treatment

The phrase groups together heterogeneous techniques, united by a negative criterion: they do not remove the vein through an incision, as surgical stripping does. This family took shape as alternatives to open surgery developed. It does not designate a single technique, but a set of modalities that differ from one another by their access route.

Classification by degree of breach

Management options for venous reflux are ranked by the penetration of the body they require. Three degrees emerge.

"Non-surgical" excludes the first degree, incision. It says nothing about the second. Most so-called non-surgical techniques rely on a puncture, alone or to introduce a catheter into the vein. Only one venous modality crosses neither: HIFU treatment, applied from outside the body.

Techniques that rely on a puncture

Most non-surgical management options pass through the lumen of the vessel, reached by puncture.

Endovenous thermal techniques, laser and radiofrequency, introduce a fiber or a probe into the vein and close its wall with heat. Today they are the first choice in the 2022 European guidelines for great saphenous vein incompetence, with the most extensive clinical follow-up.

Cyanoacrylate glue seals the vein with an adhesive injected through a catheter. Mechanochemical ablation combines a mechanical action on the wall with the injection of a sclerosing agent. Sclerotherapy, in liquid or ultrasound-guided foam form, directly injects an agent that triggers closure, by puncture without a catheter.

These techniques share one point: a source or an agent is placed inside the vessel.

The place of HIFU treatment

HIFU treatment is the only venous modality in this family that does not cross the skin. The beam of focused ultrasound is applied from outside the body and converges on the target vein, where it produces the heat that closes it. No instrument enters the lumen; the procedure is performed without incision or breach of the skin.

This distinct position stems from the access route, not from the effect obtained. HIFU closes the vein with heat, like laser and radiofrequency. It differs from them by where that heat is applied, delivered from a distance rather than inside the vessel.

What "non-surgical" does not say

The criterion is an access route, not a hierarchy. "Non-surgical" says nothing about the efficacy, the safety, or the level of evidence of a technique. Each of these dimensions is established from clinical data specific to each modality, with its own numbers and follow-up durations.

A technique without incision is not, on that basis alone, superior to one that involves it. Likewise, the absence of breach does not remove the need for a prior workup or for follow-up. The choice of a modality is a medical decision, based on the anatomy of the venous network, the characteristics of the reflux, and the patient's condition.