Keywords: AV fistula; AVVQ; Ambulatory compression; CEAP; CTV; Chronic venous disease; Compression; Duplex ultrasound; Endophlebectomy; High ligation; Laser; MRV; Non-thermal ablation; Phlebectomy; Phlebography; Plethysmography; Radiofrequency ablation; Recurrent varicose veins; Sclerotherapy; Stenting; Stripping; Thermal ablation; VCSS; Varicose veins; Vein Qol Sym; Venous disease; Venous malformation; Villalta; Wound dressings.