Usability of presepsin, calprotectin, and interleukin 6 in the diagnosis of acute appendicitis

Objective: This study aimed to evaluate presepsin, calprotectin, and interleukin-6 levels together in terms of their utility in the diagnosis of acute appendicitis and distinguishing complicated acute appendicitis cases. In addition, it was attempted to identify a biomarker that would be most useful in diagnosing acute appendicitis. Methods: This study was conducted prospectively at the emergency department of a tertiary hospital. Patients diagnosed with AA from July 3, 2023, through January 1, 2024, were evaluated. 45 patients with acute appendicitis and 45 healthy volunteers were included in the study. Presepsin, calprotectin, and interleukin-6 levels were measured in both groups and subjected to statistical analyses. Results: To ensure equality between the two groups participating in the study, 17 female and 28 male patients were included in each group. The presepsin, calprotectin, and interleukin-6 levels of the patients with appendicitis were significantly higher than those of the healthy group (p < 0.001 for all). However, presepsin, calprotectin, and interleukin-6 were not significant parameters in differentiating between complicated and uncomplicated appendicitis (p = 0.493, p = 0.202, and p = 0.448, respectively). Conclusion: Presepsin, calprotectin, and interleukin-6 levels may be useful in diagnosing acute appendicitis but would be insufficient in identifying complicated cases.