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Endovenous laser ablation: The role of intraluminal blood

Research output: Contribution to journalArticleScientificpeer-review


Original languageEnglish
Pages (from-to)120-126
Number of pages7
Issue number1
Publication statusPublished - Jul 2011
Publication typeA1 Journal article-refereed


Objective: In this histological study, the role of the intraluminal blood during endovenous laser ablation was assessed. Methods: In 12 goats, 24 lateral saphenous veins were treated with a 1500-nm diode laser. Four goats were treated in an anti-Trendelenburg position (group 1). The next four goats were treated in a Trendelenburg position (group 2) and the remaining four goats in the Trendelenburg position with additional injection of tumescent liquid (group 3). Postoperatively, the veins were removed after 1 week and sent for histological examination. We measured the number of perforations. Vein wall necrosis and the perivenous tissue destruction were quantified using a graded scale. Results: The 'calculated total vein wall destruction' was significantly higher in the third group (81.83%), as compared with groups one (61.25%) (p <0.001) and two (65.92%) (p <0.001). All three groups showed a significant difference in the perivenous tissue destruction scale (p <0.001) with the lowest score occurring in the third group. Vein wall perforations were significantly more frequent in groups one and two as compared with the third group (T-test respectively p <0.001, p = 0.02). Conclusion: A higher intraluminal blood volume results in reduced total vein wall destruction. Injection of tumescent liquid prevents the perivenous tissue destruction and minimises the number of perforations.


  • Endovenous laser, Histological study, Intraluminal blood, Venous disease