Experimental laparoscopic pyloromyotomy in pigs

Abstract

The objective of this study was to evaluate and compare laparoscopic pyloromyotomy methods involving the laparoscopic scalpel and the harmonic scalpel in pigs. The experiment was conducted on 4 subgroups of 12 animals subjected to laparoscopic-assisted pyloromyotomy with a surgical scalpel and the harmonic scalpel, as well as laparoscopic pyloromyotomy with Berci's laparoscopic scalpel and the harmonic scalpel. No postsurgical complications were observed. Four weeks after the surgery, the animals were sacrificed and autopsy was performed. In one animal peritoneal adhesions between the intestines and the mini-laparotomy incision were found. Laparoscopic pyloromyotomy and laparoscopic-assisted pyloromyotomy performed in pigs enabled the selection of laparoscopic entry sites, instruments for pyloromyotomy and evaluation of the applied surgical procedures in animals. The results of this study indicate that the methods applied can be safely used in clinical practice in dogs and cats due to minimal post-operative complications and fast healing of laparoscopic incisions in comparison with classical surgical wounds, and that the harmonic scalpel is a safe surgical instrument.

Laparoscopic pyloromyotomy and pyloroplasty in dogs

“…Six canine patients with clinical symptoms of hypertrophy of the pyloric sphincter were operated based on the results of experimental pyloromyotomy and pyloroplasty performed by the authors in pigs (Holak et al 2015). The location of laparoscopic ports in surgical procedures performed in pigs proved to be optimal for freely manipulating the pylorus, and incising and dissecting the serous membrane and the muscular layer also in dogs.…”