Changes in the frequency, presentation and surgical outcomes of complicated appendicitis during the pandemic.

Abstract

Objective: Coronavirus Disease 2019 (COVID-19) has affected every aspect of human life and all health care systems globally. The aim of this study was to investigate the effect of COVID-19 pandemic on the frequency, presentation and surgical outcomes of complicated appendicitis.

Methods: Patients who underwent appendectomy for acute appendicitis one year before and one year after the declaration of the pandemic were investigated. Demographics and diagnostic findings as well as surgical and histopathological outcomes were recorded and statistically analyzed.

Results: The study group of 409 patients was composed of 241 cases in the pre-pandemic group and 168 cases in the pandemic group revealing that the weekly total number of appendectomies decreased during the pandemic [pre-pandemic, median (IQR): 5 (3-6); pandemic, median (IQR): 3 (2-5); p=0.005]. The pandemic group was significantly associated with a longer time from emergency department admission to hospitalization, increased mean blood C-reactive protein levels and increased rate of postoperative complications (p=0.024, p=0.038 and p=0.004, respectively). Most importantly, pathological examinations revealed a higher number of complicated appendicitis cases in the pandemic group when compared to the pre-pandemic group [26 (15.5%) vs. 19 (7.9%), respectively] which corresponded to a 2.1-fold higher risk of being diagnosed with complicated appendicitis during the pandemic [OR: 2.1 (95% CI: 1.1-4.1), p=0.024].

Conclusion: While fewer appendectomies were performed during the pandemic, the incidence of complicated appendicitis and postoperative complications increased considerably.