Thermal ablation revolutionized the treatment of saphenous reflux, and refinements in fiber and electrode design have extended radiofrequency (RF) energy to smaller superficial veins and incompetent perforators that were historically managed by sclerotherapy or open surgery. These innovations broaden the minimally invasive toolkit for chronic venous disease.
Rationale for small-vein ablation
Reflux is not confined to the main saphenous trunks. Incompetent tributaries and perforating veins contribute to symptoms, recurrence, and skin changes. Precisely controlled RF energy delivered through fine probes allows targeted closure of these smaller vessels while limiting thermal spread to surrounding tissue.
Technique
Under ultrasound guidance, a fine RF probe is advanced into the target vein or perforator. Tumescent anesthesia protects surrounding tissue, and energy is delivered in controlled segments during pullback. Real-time ultrasound confirms position and immediate closure. The approach can be combined with truncal ablation in a single session to treat the full reflux pattern.
Long-term outcomes
Reported experience shows durable closure and symptom improvement when reflux is comprehensively addressed, including tributaries and perforators as indicated. Treating the complete pattern of reflux — rather than the trunk alone — is associated with lower recurrence and better quality-of-life outcomes over time.
Patient selection
Duplex mapping defines which veins are refluxing and which are suitable for thermal versus non-thermal treatment. Careful selection avoids unnecessary treatment of competent vessels and matches the modality to vessel size and location.
INVAMED technologies in this space
INVAMED's venous portfolio spans thermal and non-thermal ablation, including small-vein RF systems; explore the varicose vein category.
Device availability and approved indications vary by country. This content is prepared for healthcare professionals and does not replace clinical judgment or the instructions for use.