title: Occlusion rate, venous symptoms and patient satisfaction after radiofrequency-induced thermotherapy (RFITT®): are there differences between the great and the small saphenous veins?
abstract: BACKGROUND
  Previous studies on the therapy of insufficient saphenous veins mainly compare different treatment methods. Only a few investigate differences of a specific treatment option between the great (GSV) and the small saphenous vein (SSV). The aim of this study was to evaluate the efficacy, clinical improvement and patient satisfaction after radiofrequency-induced thermotherapy (RFITT®) with regard to the treated vein.
  
  
  METHODS
  We included 65 patients (40 women, 25 men; mean age 54.75 years) who were treated with RFITT® for incompetent saphenous veins (n = 83: 62 GSV, 21 SSV). Occlusion rates were determined by duplex-sonography. Additionally, we performed a prospective analysis of venous symptoms and signs by means of a standardized questionnaire and of patient satisfaction using a semi-quantitative rating (1 = very good, 6 = insufficient).
  
  
  RESULTS
  The GSV group showed a significantly greater reduction of venous symptoms in comparison to the SSV group (p = 0.005) despite no significant differences in long term occlusion rates (mean time after operation: 22 months) of 90 % in the GSV group and 81.8 % in the SSV group (p = 0.598). Following the procedure, detailed analysis revealed significantly more swelling (p = 0.022), feeling of heavy legs (p = 0.002) and nightly calf cramps (p = 0.001) in the SSV group. Additionally, RFITT® led to a significant improvement in patient satisfaction in the GSV group (from 1.93 at day 1 - 3 to 1.41 after 6 - 12 months, p = 0.009) but not in the SSV group (from 2.29 to 2.07, p = 0.43).
  
  
  CONCLUSIONS
  With regard to the improvement of venous symptoms and patient satisfaction, the benefit of RFITT® is greater for patients with incompetent GSV compared to those with incompetent SSV.
authors.affiliation: 1 Department of Dermatology, Venereology and Allergology, Ruhr-University Bochum, Vein Center of the Departments of Dermatology and Vascular Surgery Bochum, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Doerler
authors.forename: Thomas
authors.initials: T
authors.lastname: Blenkers
authors.forename: Stefanie
authors.initials: S
authors.lastname: Reich-Schupke
authors.forename: Peter
authors.initials: P
authors.lastname: Altmeyer
authors.forename: Markus
authors.initials: M
authors.lastname: Stücker
mesh_terms: D017115:Catheter Ablation / Q000009:adverse effects; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction; D011183:Postoperative Complications / Q000209:etiology; D011446:Prospective Studies; D012189:Retrospective Studies; D012501:Saphenous Vein / Q000000981:diagnostic imaging / Q000601:surgery*; D011795:Surveys and Questionnaires; D013997:Time Factors; D016896:Treatment Outcome; D018616:Ultrasonography, Doppler, Duplex; D014689:Venous Insufficiency / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*
keywords: Chronic venous insufficiency; endovenous thermal ablation; patient satisfaction; radiofrequency ablation; venous clinical severity score