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Varicose veins are among the common problems affecting the quality of life. Endovenous laser ablation (EVLA) has been introduced as a noninvasive treatment for varicose veins. This study was performed according to the Meta-analyses Of Observational Studies in Epidemiology (MOOSE) protocol, and the results were reported based on Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines. MeSH keywords were searched in several online databases. Heterogeneity among studies was assessed using Cochran's Q test and I2 index, and the random-effects model. Data were analyzed using Comprehensive Meta-analysis software version 2. EVLA success, recurrence and recanalization rates were 94.5%, 10.3% and 3.6%, respectively. EVLA complications in the treatment of varicose veins were ecchymosis (41.3%), pain (26.1%), bruising (24.2%), induration (22.7%), edema (8.3%), phlebitis (4.8%), dyspigmentation (4.1%), venous thrombosis (3.7%), thrombophlebitis (3.7%), paresthesia (3.1%), thermal injury (1.8%), hematoma (1.7%), cellulitis (1.4%), bleeding (0.9%), infection (0.9%), nerve injury (0.9%), deep vein thrombosis (DVT) (0.6%) and pulmonary thromboembolism (PTE) (0.4%). The success rate of EVLA increased with an increase in wavelength and peaked at 1470 nm (nm). The highest rate of recurrence and recanalization was at 810 nm and 940 nm, and the lowest was at 1470 nm. EVLA is an effective, less invasive and mostly safe treatment with no need to general anesthesia and also minor complications. The follow-up duration and geographical location of studies also provide insight into the differences in success rate, recurrence and recanalization rate of EVLA. [ABSTRACT FROM AUTHOR]

Varicose veins are a common disorder for which different treatments with varied efficacy have been introduced so far. In this study, we review the results of previous studies to evaluate the efficacy of ClosureFast endovenous radiofrequency ablation (RFA) in treating varicose veins. The present study was performed based on the Meta-analysis Of Observational Studies in Epidemiology (MOOSE) protocols, and the results were reported based on the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guideline. Searches were conducted in all authentic online databases, and the retrieved papers were conducted until March 2021 using Mesh keywords. Study data with the necessary quality to enter the meta-analysis were extracted. Data were analyzed using comprehensive meta-analysis (CMA) software version 2. The cutoff level for significance was determined at 0.05. In total, 36 studies with sample size 7404 procedures were included. Radiofrequency ablation success, recurrence, and recanalization rates in the treatment of varicose veins were estimated to be 95%, 7%, and 3% respectively. The most common complications were bruising 13%, induration 11.6%, edema 8%, ecchymosis 7.4%, and numbness 6.3%. This study showed that the radiofrequency ablation method is a high-performance method with few and often transient complications, and the risk of significant complications in using this method to treat varicose veins is low. More studies are needed to evaluate the effectiveness of this method compared to other treatments. [ABSTRACT FROM AUTHOR]