Angiology: Open Access
Open Access

Innovations in Venous Insufficiency Treatment Comparing the Efficacy of Endovenous Laser and Radiofrequency Ablation

Elizabeth Harper^{* *}Correspondence: Elizabeth Harper, Department of Vascular Surgery, Institute of Cardiovascular Medicine, University of London, St. George's Hospital, London, United Kingdom, Email:

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Description

Chronic Venous Insufficiency (CVI) is a prevalent vascular condition characterized by the inability of the veins, especially in the legs, to efficiently return blood to the heart. This condition can lead to symptoms such as varicose veins, swelling, leg pain and in severe cases, venous ulcers. Over the years, there has been a significant evolution in the treatment of CVI, with minimally invasive procedures like Endovenous Laser Ablation (EVLA) and Radiofrequency Ablation (RFA) emerging as the gold standard for treating symptomatic varicose veins. Both techniques aim to close off incompetent veins, rerouting blood flow to healthier vessels. However, these two methods differ in their technology, procedural nuances and long-term outcomes, warranting a closer examination of their comparative efficacy.

A laser fiber is inserted into the target vein through a catheter and guided by ultrasound imaging. Once in place, the laser energy causes thermal injury to the vein, leading to its collapse and eventual absorption by the body. Studies have shown that EVLA is highly effective for treating larger veins, with success rates exceeding 90%. The procedure is minimally invasive, performed under local anesthesia and typically completed within an hour. One of the key benefits of EVLA is its ability to treat veins of varying sizes and its versatility across different stages of venous disease. Moreover, EVLA has demonstrated reduced recurrence rates and fewer complications when compared to traditional vein stripping. However, potential drawbacks include minor side effects like bruising, swelling and, in rare cases, thermal injury to surrounding tissue, which could lead to nerve damage or skin burns.

In contrast, Radiofrequency Ablation (RFA) utilizes radiofrequency energy to heat and close the affected veins. Like EVLA, RFA is performed using a catheter that delivers energy to the vein wall, causing it to collapse. The advantage of RFA lies in its use of a lower temperature compared to laser therapy, which some proponents claim results in less thermal damage to surrounding tissue. RFA has been found to be equally effective as EVLA in terms of vein closure, symptom relief and recurrence rates. In fact, RFA is particularly beneficial for patients with veins that are difficult to access or in cases where there is a higher risk of thermal injury due to proximity to sensitive structures like nerves. RFA procedures also have lower rates of post-treatment hyperpigmentation and bruising, providing a better cosmetic outcome in some patients. However, RFA does have its own set of risks, including nerve injury, Deep Vein Thrombosis (DVT) and, in rare cases, Pulmonary Embolism (PE). Despite these risks, RFA has been shown to offer quicker recovery times than traditional vein stripping and a favorable safety profile.

Both procedures offer significant advantages over traditional surgical treatments like vein stripping, which involves the complete removal of veins and carries a higher risk of complications, including infection, Deep Vein Thrombosis (DVT) and scarring. The decision between EVLA and RFA largely depends on the patient's individual condition, including vein size, location and the clinical expertise of the healthcare provider. Some studies suggest that EVLA may be superior in treating larger veins, while RFA may be more suitable for smaller veins and those located in more challenging anatomical regions.

The recovery period for both EVLA and RFA is generally quick, with most patients returning to normal activities within a few days. Compression stockings are typically required for a few weeks post-procedure to support healing and reduce the risk of complications such as hematoma formation. Patient satisfaction following both treatments is typically high, with most individuals reporting a significant reduction in symptoms such as pain, heaviness and swelling. Both EVLA and RFA have been found to improve the quality of life for patients with CVI, though the choice of procedure should be based on careful consideration of the patient’s unique needs and the expertise of the treating physician.

Long-term follow-up data on both EVLA and RFA suggest that both treatments are highly effective in the management of CVI, with low recurrence rates and minimal complications. However, there are still ongoing debates regarding which procedure is definitively superior. While some studies suggest that EVLA may offer a slight edge in terms of vein closure rates, others indicate that RFA may have a more favorable safety profile with fewer adverse events. Additionally, the use of imaging technology, such as duplex ultrasound, has significantly enhanced the precision of both techniques, further improving their outcomes.

Conclusion

In conclusion, both Endovenous Laser Ablation (EVLA) and Radiofrequency Ablation (RFA) are highly effective, minimally invasive treatments for chronic venous insufficiency. They provide substantial improvements in venous function, reduce symptoms and carry fewer risks than traditional vein stripping. The choice between EVLA and RFA depends on several factors, including the size and location of the varicose veins, patient preferences and the surgeon’s expertise. As both techniques continue to evolve, ongoing research will provide further clarity on their long-term efficacy and guide clinicians in selecting the most appropriate treatment for individual patients.

References

1. Gale SS, Lee JN, Walsh ME, Wojnarowski DL, Comerota AJ. A randomized, controlled trial of endovenous thermal ablation using the 810-nm wavelength laser and the ClosurePLUS radiofrequency ablation methods for superficial venous insufficiency of the great saphenous vein. J Vasc Surg. 2010 Sep 1;52(3):645-50.
2. Jiang W, Liang Y, Long Z, Hu M, Yang H, Qin X.et al. Endovenous radiofrequency ablation vs laser ablation in patients with lower extremity varicose veins: A meta-analysis. J Vasc Surg Venous Lymphat Disord. 2024 Sep 1;12(5):101842
3. Hissink RJ, Bruins RM, Erkens R, Nuijts MC, Van Den Berg M. Innovative treatments in chronic venous insufficiency: endovenous laser ablation of perforating veins: a prospective short-term analysis of 58 cases. Eur J Vasc Endovasc Surg. 2010 Sep 1;40(3):403-6
4. Gauw SA, van Vlijmen CJ, Pronk P, Gaastra MT, Tangelder MJ, Mooij MC.et al. Prospective comparative cohort study evaluating incompetent great saphenous vein closure using radiofrequency-powered segmental ablation or 1470-nm endovenous laser ablation with radial-tip fibers (Varico 2 study). J Vasc Surg Venous Lymphat Disord. 2018;6(1):31-40.
5. Kornmann VN, Van Eekeren RR, Tromp E, Ünlü Ç, Reijnen MM, de Vries JP.et al. Treatment modalities for small saphenous vein insufficiency: systematic review and meta-analysis. Endovasc Ther. 2016;23(1):199-211.
6. Guo J, Zhang F, Guo J, Guo L, Gu Y, Huang Y.et al. A systematic review and meta-analysis comparing the efficacy of cyanoacrylate ablation over endovenous thermal ablation for treating incompetent saphenous veins. Phlebology. 2021;36(8):597-608.
7. Dimech AP, Cassar K. Efficacy of cyanoacrylate glue ablation of primary truncal varicose veins compared to existing endovenous techniques: a systematic review of the literature. J Surg. 2020;6(02):77-86.
8. Rathbun S, Norris A, Stoner J. Efficacy and safety of endovenous foam sclerotherapy: meta-analysis for treatment of venous disorders. Phlebology. 2012;27(3):105-117.
9. Dumantepe M, Tarhan A, Yurdakul I, Özler A. Endovenous laser ablation of incompetent perforating veins with 1470 nm, 400 μm radial fiber. PMLS. 2012;30(11):672-677.
10. Davies HO, Popplewell M, Darvall K, Bate G, Bradbury AW. A review of randomised controlled trials comparing ultrasound-guided foam sclerotherapy with endothermal ablation for the treatment of great saphenous varicose veins. Phlebology. 2016;31(4):234-240.