Ms. Meral F. Somunyudan Profile

Meral F. Somunyudan

at Bogaziçi Üniv

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Proceedings Article | 23 February 2011 Paper

Endovenous laser ablation with TM-fiber laser

Meral Filiz Somunyudan, Nermin Topaloglu, Mehmet Umit Ergenoglu, Murat Gulsoy

Proceedings Volume 7897, 789707 (2011) https://doi.org/10.1117/12.875411

KEYWORDS: Veins, Fiber lasers, Absorption, Laser applications, Laser ablation, Semiconductor lasers, Tissues, Laser energy, Laser tissue interaction, Tissue optics

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Endovenous Laser Ablation (EVLA) has become a popular minimally invasive alternative to stripping in the treatment of saphenous vein reflux. Several wavelengths have been proposed; of which 810, 940 and 980- nm are the most commonly used. However, the most appropriate wavelength is still the subject of debate. Thermal shrinkage of collagenous tissue during EVLA plays a significant role in the early and late results of the treatment. The aim of this study is to compare the efficacy of 980 and 1940-nm laser wavelengths in the treatment of varicose veins. In this study, 980 and 1940-nm lasers at different power settings (8/10W for 980-nm, 2/3W for 1940-nm) were used to irradiate stripped human veins. The most prominent contraction and narrowing in outer and inner diameter were observed with the 1940-nm at 2W, following 980-nm at 8W, 1940-nm at 3W and finally 980-nm at 10W. The minimum carbonization was observed with the 1940-nm at 2W. As a conclusion, 1940-nm Tm-fiber laser which has a significant effect in the management of varicose veins due to more selective energy absorption in water and consequently in the vein is a promising method in the management of varicose veins.

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