| VMs | Vascular Malformations |
| ECT | Electrochemotherapy |
| PRISMA | Preferred Reporting Items for Systematic Reviews and Meta-Analyses |
| RCT | Randomized Controlled Trial(s) |
| NOS | Newcastle-Ottawa Scale |
| BEST | Bleomycin ElectroScleroTherapy |
| COP | Current Operating Procedure |