Vein Mapping Prior to Endovenous Catheter Ablation of the Great Saphenous Vein Predicts Risk of Endovenous Heat-Induced Thrombosis

Abstract

Objective: We investigate the value of vein mapping for predicting the risk of endovenous heat-induced thrombosis (EHIT) after endovenous laser treatment (EVLT) and radiofrequency ablation (RFA) of the great saphenous vein (GSV). Methods: In all, 355 consecutive vein mappings were retrospectively analyzed. A generalized estimating equations approach to linear logistic regression was used to evaluate the variables. Results: Among the 312 vein ablation of the GSV, 10 (3.2%) developed EHIT. When comparing the group of patients who developed EHIT versus no EHIT, the mean GSV diameter was 13.05 ± 5.59 mm versus 8.39 ± 3.38 mm (odds ratio [OR]: 1.25, P = .001), the presence of valvular incompetence at the saphenofemoral junction (SFJ) was 10.71% versus 0.44% (OR: 27.75, P =.001), and 3.09% in RFA versus 3.33% in EVLT (OR: 1.09, P = .89). Conclusions: Patients with valvular insufficiency of the SFJ and a large proximal GSV diameter had a significantly higher risk of developing heat-induced thrombosis after endovenous catheter ablation.

Keywords

endovenous heat-induced thrombosis complication after vein ablation minimally invasive vein surgery

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