Dear Readers, In this issue, Michel Perrin reviews the evidence–or the lack of thereof–for treatment of recurrent or residual varicose veins after previous treatment (PREsence of VArices after operatIve Treatment [PREVAIT]). Duplex ultrasound is essential for determining an adequate therapeutic approach. Several treatment methods have been reported, of which foam sclerotherapy is becoming the most popular. Unfortunately, the vast majority of available studies on surgical treatment, thermal ablation, or chemical ablation only report short-term results up to 1 year after the procedure. More prospective studies are definitely needed. Giovanni Mosti sheds light on compression after treatment of varicose veins…