Introduction.

Laparoscopic appendectomy is considered the gold standard in the treatment of acute appendicitis. However, its availability is limited in our health system mainly due to the associated costs. The objective of this study is to evaluate the relationship between the use of different types of energy and the methods of ligation of the appendicular base with postoperative complications, as well as to describe the associated costs.

Methods.

Retrospective observational study of a cohort of patients older than 15 years old who underwent laparoscopic appendectomy in a university hospital between 2014 and 2018. Logistic and linear regression models were used to evaluate the relationship between methods of ligation of the meso and appendicular base, operative outcomes and costs.

Results.

2074 laparoscopic appendectomies were performed. Of those, 58.2% (n=1207) were women, median age was 32 years. In 71.5% (n=1483), acute appendicitis was uncomplicated. Monopolar energy for ligation was the most frequently used for ligation of the appendicular meso in 57.2% (n=1187) and Hem-o-lok® the most used for ligation of the appendicular base in 84.8% (n=1759) of the patients. There were no statistically significant differences in the rate of surgical site infection, reoperation, or ileus. The use of simple energy reduced the costs of the procedure significantly during the study period.

Discussion.

The use of monopolar energy proved to be a safe, reproducible and a lower cost technique compared to the use of bipolar energy, regardless of the phase of acute appendicitis. This has allowed more laparoscopic appendectomies to be performed and the general surgery residents to perform laparoscopic procedures earlier.

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