[Concomitant versus Staged Tributary Management during Endovenous Truncal Ablation for Varicose Veins: An Evidence-Based Progress Review].

Strategic management of tributary veins-concomitant versus staged intervention during endovenous thermal ablation for truncal varicose veins-remains debated. Hemodynamic studies demonstrate that staged approaches preserve the drainage function of tributaries, preventing edema in their respective drainage territories and reducing tributary intervention rates. Major venous disease guidelines exhibit substantial divergence: U.S. guidelines prioritize concomitant procedures, Japanese guidelines contraindicate them, while European and Chinese frameworks endorse individualized decision-making. Systematic literature review reveals that concomitant procedures (thermal ablation with ultrasound-guided foam sclerotherapy/phlebectomy) do not uniformly translate into reduced reintervention rates or improved early Venous Clinical Severity Scores (VCSS), yet consistently incur elevated complication risks and postoperative pain. Conversely, staged strategies (initial truncal ablation followed by deliberated tributary management) offer superior tolerability with minimized complications. Hemodynamic principles indicate that most competent tributaries undergo partial or complete regression within 6 weeks to 6 months post-ablation. A limited evidence subset suggests patients with tributary diameters>6 mm or CEAP C3-C6 classifications may benefit from concomitant intervention. Future multicenter randomized controlled trials are imperative to delineate comparative outcomes between concomitant and staged management of truncal and tributary veins.