No significant differences in ultrasound morphology after endovenous laser ablation with 1940-nm versus 1470-nm radially emitting fibers: A one-year prospective randomized multicenter study

Markus Stücker, Lars Müller, Thomas Mattausch, Thomas Weiler, Department of Dermatology, Venereology and Allergology, Center for Vein Treatment at the Section of Dermatology and Vascular Surgery, Catholic Hospital Bochum gGmbH, Department of Vascular Surgery, Dermatologikum Hamburg GmbH, Department of Vascular Medicine, University Heart and Vascular Center, University Medical Center Hamburg-Eppendorf, Venenzentrum am Bruehl, Venenzentrum Pforzheim

Phlebology: The Journal of Venous Disease

Published online on June 03, 2026

Abstract

Phlebology, Ahead of Print.
BackgroundEndovenous laser ablation (EVLA) is a guideline-recommended treatment for great saphenous vein (GSV) incompetence. Higher-wavelength lasers (1470 nm, 1940 nm) with radial fibers aim to improve efficacy while reducing postoperative morbidity. ...