COMPARATIVE CHARACTERISTICS OF THE APPLYING OF PHYSICAL METHODS AT CHOLECYSTECTOMY IN AN EXPERIMENT

Abstract

In an experiment on laboratory animals (84 male rabbits of Shinchilla breed weighing 3 to 3.5 kg), the processes of liver tissue regeneration after cholecystectomy using electrocoagulation, cryoexposure and Harmonic scalpel (HS) at different terms were studied in a comparative aspect. The objective of the work: to study in the experiment histomorphological changes in the gallbladder bed under the influence of monopolar electrocoagulation, low temperatures and ultrasonic scalpel in a comparative aspect at cholecystectomy. Depending on the method of resection of the gallbladder and the method of hemostasis, all animals were divided into three groups. In Group I, after resection of the gallbladder, the animals underwent hemostasis of the gallbladder bed (GBB) with the help of monopolar electrocoagulation. In Group II, hemostasis was performed by the cryogenic treatment of GBB with a laparoscopic cryoapplicator. In group III, after cholecystectomy, the animals underwent hemostasis with HS. The results of the experiment made it possible to compare not only the hemostatic and cholestatic effects of various types of energy, but also to assess the grade of traumatization of the liver parenchyma in the operative intervention zone and the influence of various methods on the quality and terms of the reparative processes. The effectiveness of the HS in achieving final hemostasis with bleeding from GBB in cholecystectomy has been experimentally proven. It is determined that the depth and grade of the dystrophic process is less expressed with ultrasound exposure. The use of HS in the treatment of GBB was a safe and reliable method of stopping parenchymal hemorrhage and bile leakage from the liver parenchyma.