Laparoscopic ovariectomy in dogs: a comparison of the Ligasure, Ultrasound, Bipolar, and Ligature methods

Laparoscopic ovariectomy is one of the common procedures performed in adult female dogs. The objective of this study was to compare the intraoperative and postoperative effects of laparoscopic ovariectomy with four hemostasis methods including Ligasure(LS), Ultrasound scalpel(US), Bipolar(BP) electrosurgery, and ligature(LT).

9 adult mix breed female dogs divided into four groups (LS, US, and LT(n=2); BP (n=3)). Total operation time(TT), Total hemostasis time(HT), presence of hemorrhage was recorded during surgery. In the 7th day objects euthanized to investigate abdominal cavity for gross pathologic changes such as presence of adhesion, and histopathological changes due to thermal damage in organs adjacent to anatomic region of ovaries such as uterine horns.

Both TT and HT significantly reduced in LS and US groups in comparison with BP group (P<0.05). TT and HT in LT group were significantly more than BP group. Minimum adhesion score were detected in LS and US groups (no significant difference) which were significantly lesser than BP group (P<0.05). In LT group granuloma around suture material were detected. Thermal damage on uterine horn were significantly higher in BP and LS groups (no significant difference) than US and LT(with no thermal injury) groups (p<0.05). Discussion and

Application of easy, fast, safe method of hemostasis with minimal thermal damage and postoperative complications is mandatory in laparoscopic ovariectomy. Use of Ultrasonic scalpel in comparision with other methods was fast, and the most applicable with minimum thermal injury and postoperative complications in laparoscopic ovariectomy.