Benefits of standardization in the management of acute appendicitis.

Objective: Acute appendicitis (AA) is the most frequent urgent surgical pathology in the pediatric population, but postoperative management is variable, with protocols minimizing variability. We present our results following the optimization of the management protocol in our institution in order to establish its efficacy in terms of number of infectious complications and optimization of resources in our environment.

Materials and methods: An observational, retrospective study of patients undergoing AA surgery from January 2018 to August 2022 was carried out. Two cohorts were compared, both before (1) and after (2) the implementation of the new protocol. They were divided according to severity in order to conduct a subgroup-based analysis -phlegmonous (PH), gangrenous (G), and perforated (P) appendicitis.

Results: 771 patients (1: 390; 2: 381) were included, with a homogeneous distribution and a median age of 9.3 ± 2.8 years. Blood tests requested prior to discharge experienced a significant reduction (PH: 3.9% vs. 0.5%; p= 0.026; G: 97.6% vs. 13.4%, p< 0.001). Days of hospital stay decreased in the PH (1.2 IQR: 0.7 vs. 1 IQR: 0.36; p< 0.001) and G (4 IQR: 1 vs. 3 IQR: 1 days; p< 0.001) subgroups. No differences in the number of abscesses were found between groups (41 vs. 43; p= 0.73), but they were noted within subgroup G (9 vs. 2; p= 0.029). A reduction in resource expenses was detected in PH and G appendicitis.

Conclusions: In our study, the most widely benefited subgroup following protocol optimization was the gangrenous appendicitis subgroup, with a significant reduction in the number of complications and the use of hospital resources.