Abstract
Mechanochemical endovenous ablation (MOCA) was introduced to treat superficial venous insufficiency of the lower leg with less pain and haematoma. Long-term outcome is still lacking. The purpose was to report long-term outcome and to analyse possible predictors for failure. The study was a retrospective pooled analysis of two prospective cohorts previously reported, but with prolonged long-term outcome up to 5-years follow-up. 163 treated legs were analysed. Mean follow-up was 5.4±0.6years, in which 33 total failures occurred. Four procedures were partially successful. VCSS improved significantly and remained stable after 1 and 2-years, but significantly rose again after 5-years. AVVQ dropped significantly, but increased after 1year to 4.3 and 6.1 at 5-years follow-up. MOCA was effective with minimal pain perioperative. However, anatomical success deteriorated after 1-year and showed even less results after 5-years, mainly due to partly recanalization, while clinical results were less affected. There were no clear clinical predictors for failure.
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