Mechanochemical endovenous ablation of small saphenous vein insufficiency using the clarivein® device: One-year results of a prospective series

D. Boersma* (Corresponding Author), R.R.J.P. van Eekeren, D.A.B. Werson, R.I.F. van der Waal, M.M.J.P. Reijnen, J.-P.P.M. de Vries

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

63 Citations (Scopus)
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Objective: This study evaluated the feasibility, safety and 1-year results of mechanochemical endovenous ablation (MOCA™) of small saphenous vein (SSV) insufficiency. Design: Prospective cohort study. Materials and methods: Fifty consecutive patients were treated for primary SSV insufficiency with MOCA™ using the ClariVein® device and polidocanol. Initial technical success, complications, patient satisfaction and visual analogue scale (VAS) pain score were assessed. Anatomic and clinical success was assessed at 6 weeks and at 1 year. Results: Initial technical success of MOCA™ was 100%. At the 6-week assessment, all treated veins were occluded. The 1-year follow-up duplex showed anatomic success in 94% (95% confidence interval, 0.87-1). Venous clinical severity score (VCSS) decreased significantly from 3.0 (interquartile range (IQR) 2-5) before treatment to 1.0 (IQR 1-3, P < 0.001) at 6 weeks and to 1.0 (IQR 1-2, P < 0.001) at 1 year. Median procedural VAS score for pain was 2 (IQR 2-4). No major complications were observed, especially no nerve injury. Conclusions: MOCA™ is a safe, feasible and efficacious technique for treatment of SSV insufficiency. One-year follow-up shows a 94% anatomic success rate and no major complications.

Original languageEnglish
Pages (from-to)299-303
Number of pages5
JournalEuropean journal of vascular and endovascular surgery
Issue number3
Publication statusPublished - 1 Mar 2013
Externally publishedYes


  • Polidocanol
  • Saphenous vein
  • Varicose veins
  • Varicose veins therapy


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