Science News
from research organizations

New investigation of endovenous laser ablation of varicose veins

Date:
May 10, 2016
Source:
Kazan Federal University
Summary:
Results have been presented from experiments on endovenous laser ablation of varicose veins in vitro using laser radiation of a solid-state laser and identifying the role a carbonized layer of blood in these experiments.
Share:
FULL STORY

A significant number of publications are devoted to results of investigations aimed at the development of methods of laser ablation for varicose veins. This is due to the fact that this method is an effective and minimally invasive technique for the treatment of varicose.

However, this kind of therapy is associated with significant collateral damage because of the high output power of the laser. Therefore, it is an important question in vein surgery to optimize the laser characteristics for ablation.

To realize a process of endovenous laser ablation (EVLA), it is necessary to expose the laser radiation upon a region of the vessel so that it receives sufficient energy to cause thermal damage. On one hand, the value of this energy should provide coagulation of vein, and on the other, it should be optimized so that the structure of the surrounding healthy tissues has received a minimum degree of damage.

This original study conducted by researchers from Ogarev Mordovia State University and Kazan Federal University presents the results of experiments on endovenous laser ablation of varicose veins in vitro using laser radiation of a solid-state laser and identifying the role a carbonized layer of blood in these experiments.

An experimental series with saline solution and red blood cell (RBC) suspension in the venous lumen was performed to identify the impact of a heated carbonized layer precipitated on the fiber end face versus the efficiency of EVLA. Results of these experiments confirmed that the presence of a heated carbonized layer on the fiber end face increases the efficiency of EVLA.

Further experiments are planned for process optimization. For instance, it is planned to use radial emitting fibers since this technique can minimize a possibility of vein perforations. Also, modification of the experimental device without placement of vein into a glass tube will allow to approach experimental conditions to real.


Story Source:

Materials provided by Kazan Federal University. Note: Content may be edited for style and length.


Journal Reference:

  1. Alexander N. Belyaev, Alexey N. Chabushkin, Svetlana A. Khrushchalina, Oksana A. Kuznetsova, Andrey A. Lyapin, Konstantin N. Romanov, Polina A. Ryabochkina. Investigation of endovenous laser ablation of varicose veins in vitro using 1.885-μm laser radiation. Lasers in Medical Science, 2016; 31 (3): 503 DOI: 10.1007/s10103-016-1877-z

Cite This Page:

Kazan Federal University. "New investigation of endovenous laser ablation of varicose veins." ScienceDaily. ScienceDaily, 10 May 2016. <www.sciencedaily.com/releases/2016/05/160510132800.htm>.
Kazan Federal University. (2016, May 10). New investigation of endovenous laser ablation of varicose veins. ScienceDaily. Retrieved May 29, 2017 from www.sciencedaily.com/releases/2016/05/160510132800.htm
Kazan Federal University. "New investigation of endovenous laser ablation of varicose veins." ScienceDaily. www.sciencedaily.com/releases/2016/05/160510132800.htm (accessed May 29, 2017).

RELATED STORIES