An in vitro study to optimise treatment of varicose veins with radiofrequency-induced thermo therapy

Abstract

Using low power (6 W) and a slow discontinuous pullback (6 s every 0.5 cm, in steps), we were able to achieve our target thermal ablation in the porcine liver model without carbonisation and high impedance cut outs. This suggests the currently recommended power levels could be reduced, reducing the need to remove the device to clean the electrodes during treatment while achieving target thermoablation of the treated tissue.

Comparison of Endovenous Laser and Radiofrequency Ablation in Treating Varices in the Same Patient

“…8 Numerous studies using radiofrequency ablation (RFA) were subsequently published. [9][10][11] Studies comparing endovenous laser ablation (EVLA) and RFA then began being published. These studies generally reported equal success between EVLA and RFA, albeit with fewer side-effects and greater patient satisfaction with RFA.…”

Re. “Comments to: Histological and Immunofluorescent Analysis of the Large Tributary of the Great Saphenous Vein Treated With a 1920 nm Endovenous Laser: Preliminary Findings”

“…In a series of three papers, we have shown that by modelling thermal spread from an endovenous thermal ablation device in porcine liver, 6 confirming the findings in an ex vivo vein can then lead to 100% ablation in the clinical setting at one year 7, 8…”

RF-energised intracoronary guidewire to enhance bipolar ablation of the interventricular septum:in-silicofeasibility study

“…In order to reduce the risks as far as possible, we consider that the RF-energised guidewire should be introduced into a venous rather than an arterial branch, as recently proposed for the ethanol injection [26]. The technical limitations could be related to the metallic guidewire sticking to the inner wall of the vessel, which has been observed in endovenous varicose vein RF-ablation [27]. Even though.…”