The purpose of using electrosurgical devices in veterinary practice is to reduce bleeding during the cut increasing temperature locally, causing coagulation and apoptosis of proteins. There is a lack of data on the extent and depth of these thermal damages and whether these effects on the different tissues are the same. Because of that, the aim of this study was to investigate which of the different electrosurgical devices causes highest heating effect on the skin tissue of rabbits (Oryctolagus cuniculus). The research was carried out at the Latvia University of Life Sciences and Technologies, Faculty of Veterinary Medicine. It included 50 rabbits, on average 2 years old, clinically healthy, with similar weight and condition. We formed five experimental groups: skin tissue cut with CO2 laser (n=10), an electrocoagulator (n=10), a tissue welding device (n=10), a radiofrequency apparatus (n=10) and a scalpel as control group (n=10). In order to evaluate the thermal effects of electrosurgical instruments on tissues, we performed contactless thermography. There were taken 3 images for each animal, totally 150 skin thermo-grams. From the obtained results we conclude that the most pronounced thermal effect on rabbit’s skin was caused with laser and an electrocoagulator. All electrosurgical devices caused a significantly higher (p is less than 0.01) increase in skin temperature compared to a surgical scalpel at the moment of tissue incision. During the study, it was found that the gentlest electrosurgical devices were used on rabbit skin tissue were a radiofrequency device.

In majority of cases, a positive effect can be observed upon application of Laser Agnis-L01 in treatment regimen of bone fractures. Positive effect of the laser was observed in 66.7%, no change in 22.2% and negative effect in 11.1% of the rabbits in experiment. To accelerate healing of bone fractures, we recommended the following parameters in treatment regimen with Agnis L01: impulse power 1.5 W, impulse frequency 250 Hz, modulation frequency 50 Hz and duration of treatment episode 240 seconds, 5 squares of treatment, 1 dosage per day, 10 treatment episodes. The treatment should start from day 4 after occurrence of fracture. Efficacy of laser treatment depends on individual properties of animal. Treatment of bone fractures is complex, laser treatment could be an element of the treatment regimen.