Investigating the need for further ultrasound follow-up scans after radiofrequency ablation of the great saphenous vein

Abstract

Follow-up of patients post Radiofrequency ablation (RFA) of the Great Saphenous vein (GSV) is only carried out once locally, 6 weeks post ablation. The literature indicated that RFA is effective, yet studies reviewed were inconclusive with regards to follow-up timing strategies. In Malta, no study was previously carried out evaluating the success rate of RFA treatment after 6 weeks post RFA. Objectives The objective of the study was to investigate the success rate of RFA of the GSV performed in a state general hospital in Malta. This was done by scanning patients with ultrasound at different follow-up time intervals post RFA. Another aim was to justify if additional ultrasound follow-up scans need to be carried out post RFA. Methodology The research design adopted was a quantitative, prospective, descriptive and a nonexperimental one. Forty patients (52 limbs) who underwent RFA between January 2016 and January 2019 by the same vascular consultant were included in this study. These patients had to have had RFA performed within the following time frame: 6 months, 1 year, 1.5 years, 2 years, 2.5 years and 3 years, from the start of the data collection period. These patients were assessed by carrying out a clinical examination of the treated limb, followed by an ultrasound scan carried out by the researcher. Results Results indicated that the rate of occlusion of the GSV post RFA was successful in 92.5% of the participants (49/52 limbs). Moreover, no statistical relationship was seen between occlusion failures and the timing of the follow-up ultrasound scans post RFA. Orthopaedic surgery post RFA was the only risk factor associated with recanalisation. Conclusion It was concluded that no follow-up scans post RFA are needed, other than the routine 6 week visit.