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Erschienen in: Lasers in Medical Science 4/2020

16.09.2019 | Original Article

Optimization of endovenous laser coagulation: in vivo experiments

verfasst von: Sergey A. Artemov, Alexander N. Belyaev, Olga S. Bushukina, Svetlana A. Khrushchalina, Sergey V. Kostin, Andrey A. Lyapin, Polina A. Ryabochkina, Alina D. Taratynova

Erschienen in: Lasers in Medical Science | Ausgabe 4/2020

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Abstract

Finding optimal parameters of endovenous laser coagulation using the radiation with a wavelength of 1910 nm. In vivo experiments have been carried out on the small saphenous veins of three sheep of Edilbay breed and the dependence of venous wall and surrounding tissue damage on the radiation power was analyzed on the basis of morphological study results, as well as ultrasound examination and clinical observation of animals in the postoperative period. As radiation source, we used the diode-pumped solid-state laser, based on the LiYF4:Tm crystal, with emission wavelength of 1910 nm. For morphological study, veins were harvested immediately and 40 days after operation. Histological analysis of the vein after treatment with 1.5-W radiation revealed asymmetric wall injury and a thrombus formation in the lumen. The blood thrombus formation and pronounced vein wall damage was observed after treatment with 3-W radiation. Perivenous tissue injury is insignificant and does not lead to postoperative complications as in the case of using 1.5-W radiation. Increasing the radiation power to 4 W results in the total vein wall destruction and the thrombus formation, which persists for 40 days after the procedure. Based on the results of clinical observations of animals with registration of skin wound healing, as well as the results of histological examination of veins harvested immediately after the EVLC and 40 days after, it was concluded that the laser power value of 3–4 W can be recommended for use in the clinic.
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Metadaten
Titel
Optimization of endovenous laser coagulation: in vivo experiments
verfasst von
Sergey A. Artemov
Alexander N. Belyaev
Olga S. Bushukina
Svetlana A. Khrushchalina
Sergey V. Kostin
Andrey A. Lyapin
Polina A. Ryabochkina
Alina D. Taratynova
Publikationsdatum
16.09.2019
Verlag
Springer London
Erschienen in
Lasers in Medical Science / Ausgabe 4/2020
Print ISSN: 0268-8921
Elektronische ISSN: 1435-604X
DOI
https://doi.org/10.1007/s10103-019-02874-6

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