Endovenous laser coagulation of varicose veins: evolution continues
The article discusses the evolution of the endovenous laser ablation technique for the treatment of varicose vein disease of lower extremities. The history of studies aimed at improving the endovenous laser ablation is provided. The authors described the features of endovenous laser ablation with wa...
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| Format: | Article |
| Language: | Russian |
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Remedium Group LTD
2023-05-01
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| Series: | Амбулаторная хирургия |
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| Online Access: | https://www.a-surgeon.ru/jour/article/view/339 |
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| author | V. P. Minaev V. Yu. Bogachev K. A. Kaperiz |
| author_facet | V. P. Minaev V. Yu. Bogachev K. A. Kaperiz |
| author_sort | V. P. Minaev |
| collection | DOAJ |
| description | The article discusses the evolution of the endovenous laser ablation technique for the treatment of varicose vein disease of lower extremities. The history of studies aimed at improving the endovenous laser ablation is provided. The authors described the features of endovenous laser ablation with wavelengths from λ = 0.445 to 1.94 µm, alongside with edge- and radial-emitting working fibers, as well as fibers with radiation absorption at its distal end. The physical and biophysical mechanisms of the most popular to-date method for outpatient treatment of varicose vein disease of lower extremities are reviewed. The propagation process of laser radiation in the scattering medium is described, and the important role of the radiation scattering effect on the depth of its penetration into biological tissues is shown. The processes that take place during endovenous laser ablation are considered. The difference in physical processes that take place during the use of laser radiation mainly absorbed by hemoglobin (hemoglobin-absorbed range) and by water (water-absorbed range) is described. Expedience of simulating the processes that take place during endovenous laser ablation with the use of blood plasma has been substantiated. The blood plasma simulation demonstrated the decisive action of laser-induced boiling on thermal damage to the vein wall, which causes its fibrous transformation. It has been shown that the use of radial-emitting fibres during intense boiling generates steam bubbles around the site of radiation coupling. The contents of such steam bubbles do not absorb radiation, which thus reaches the venous wall, causing its symmetrical thermal damage. The advantages of using water-absorbing radiation with a wavelength of λ = 1.94 µm in conjunction with a radial-emitting fibre have been substantiated. |
| format | Article |
| id | doaj-art-1e0eeab707724eefad9c151b275d448d |
| institution | OA Journals |
| issn | 2712-8741 2782-2591 |
| language | Russian |
| publishDate | 2023-05-01 |
| publisher | Remedium Group LTD |
| record_format | Article |
| series | Амбулаторная хирургия |
| spelling | doaj-art-1e0eeab707724eefad9c151b275d448d2025-08-20T02:17:36ZrusRemedium Group LTDАмбулаторная хирургия2712-87412782-25912023-05-0120117418410.21518/akh2023-002283Endovenous laser coagulation of varicose veins: evolution continuesV. P. Minaev0V. Yu. Bogachev1K. A. Kaperiz2IRE-PolyusPirogov Russian National Research Medical UniversityNational Medical Research Center for Preventive MedicineThe article discusses the evolution of the endovenous laser ablation technique for the treatment of varicose vein disease of lower extremities. The history of studies aimed at improving the endovenous laser ablation is provided. The authors described the features of endovenous laser ablation with wavelengths from λ = 0.445 to 1.94 µm, alongside with edge- and radial-emitting working fibers, as well as fibers with radiation absorption at its distal end. The physical and biophysical mechanisms of the most popular to-date method for outpatient treatment of varicose vein disease of lower extremities are reviewed. The propagation process of laser radiation in the scattering medium is described, and the important role of the radiation scattering effect on the depth of its penetration into biological tissues is shown. The processes that take place during endovenous laser ablation are considered. The difference in physical processes that take place during the use of laser radiation mainly absorbed by hemoglobin (hemoglobin-absorbed range) and by water (water-absorbed range) is described. Expedience of simulating the processes that take place during endovenous laser ablation with the use of blood plasma has been substantiated. The blood plasma simulation demonstrated the decisive action of laser-induced boiling on thermal damage to the vein wall, which causes its fibrous transformation. It has been shown that the use of radial-emitting fibres during intense boiling generates steam bubbles around the site of radiation coupling. The contents of such steam bubbles do not absorb radiation, which thus reaches the venous wall, causing its symmetrical thermal damage. The advantages of using water-absorbing radiation with a wavelength of λ = 1.94 µm in conjunction with a radial-emitting fibre have been substantiated.https://www.a-surgeon.ru/jour/article/view/339endovenous laser ablationvaricose vein diseaselaser radiationbiological tissuesblood coagulation |
| spellingShingle | V. P. Minaev V. Yu. Bogachev K. A. Kaperiz Endovenous laser coagulation of varicose veins: evolution continues Амбулаторная хирургия endovenous laser ablation varicose vein disease laser radiation biological tissues blood coagulation |
| title | Endovenous laser coagulation of varicose veins: evolution continues |
| title_full | Endovenous laser coagulation of varicose veins: evolution continues |
| title_fullStr | Endovenous laser coagulation of varicose veins: evolution continues |
| title_full_unstemmed | Endovenous laser coagulation of varicose veins: evolution continues |
| title_short | Endovenous laser coagulation of varicose veins: evolution continues |
| title_sort | endovenous laser coagulation of varicose veins evolution continues |
| topic | endovenous laser ablation varicose vein disease laser radiation biological tissues blood coagulation |
| url | https://www.a-surgeon.ru/jour/article/view/339 |
| work_keys_str_mv | AT vpminaev endovenouslasercoagulationofvaricoseveinsevolutioncontinues AT vyubogachev endovenouslasercoagulationofvaricoseveinsevolutioncontinues AT kakaperiz endovenouslasercoagulationofvaricoseveinsevolutioncontinues |