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Purpose <p>Appendicoliths are one of the important causes of acute appendicitis. Currently, there is no consensus on the relationship between appendicoliths and complicated appendicitis, and opinions on the treatment of appendicolith-associated appendicitis vary. This study aims to determine the significance of appendicolith in acute complicated appendicitis and to assess the characteristics of appendicoliths and Computed tomography (CT) features associated with complicated appendicitis.</p> Methods <p>A retrospective analysis was conducted on patients who underwent surgical treatment for acute appendicitis at the affiliated hospital of Qingdao University from January 2016 to October 2023. Acute appendicitis was classified into two groups with and without appendicolith based on CT findings, intraoperative observations, and postoperative pathology. The clinical data of the two groups were analyzed and compared. Further subgroup analysis was performed within the appendicolith group based on pathological findings, comparing the location, size, and number of appendicoliths, as well as the length, diameter, and CT features of the appendix.</p> Results <p>Among 331 patients with acute appendicitis, 179 had appendicolith, of which 106 were complicated appendicitis and 73 were uncomplicated appendicitis. Among 152 patients without appendicolith, 44 had complicated appendicitis and 108 had uncomplicated appendicitis. appendicoliths were independently associated with complicated appendicitis (OR = 1.88, 95% CI: 1.04–3.40, <i>p</i> = 0.036). In patients with appendicolith appendicitis, three factors were independently associated with complicated appendicitis: appendiceal diameter (OR = 1.20; 95% CI: 1.03–1.40), moderate-severe fat stranding (OR = 17.61; 95% CI: 3.19–97.33), and periappendiceal air (OR = 9.78; 95% CI: 1.17–81.46).</p> Conclusion <p>Appendiceal appendicoliths are closely related to acute complicated appendicitis. The diameter of the appendix and moderate-severe fat stranding, periappendiceal air on CT are significant indicators for identifying complicated appendicitis in acute appendicitis with appendicolith.</p>

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Retrospective analysis of 331 acute appendicitis patients: how appendicolith and CT features aid in differentiating complicated vs. uncomplicated appendicitis

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年12月13日

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  • Dawei Zhang,
  • Shengqiang Wang,
  • Haoyang Li,
  • Zixuan Fu,
  • Jing Zhang,
  • Zhen Liu,
  • Shikuan Li

摘要

Purpose

Appendicoliths are one of the important causes of acute appendicitis. Currently, there is no consensus on the relationship between appendicoliths and complicated appendicitis, and opinions on the treatment of appendicolith-associated appendicitis vary. This study aims to determine the significance of appendicolith in acute complicated appendicitis and to assess the characteristics of appendicoliths and Computed tomography (CT) features associated with complicated appendicitis.

Methods

A retrospective analysis was conducted on patients who underwent surgical treatment for acute appendicitis at the affiliated hospital of Qingdao University from January 2016 to October 2023. Acute appendicitis was classified into two groups with and without appendicolith based on CT findings, intraoperative observations, and postoperative pathology. The clinical data of the two groups were analyzed and compared. Further subgroup analysis was performed within the appendicolith group based on pathological findings, comparing the location, size, and number of appendicoliths, as well as the length, diameter, and CT features of the appendix.

Results

Among 331 patients with acute appendicitis, 179 had appendicolith, of which 106 were complicated appendicitis and 73 were uncomplicated appendicitis. Among 152 patients without appendicolith, 44 had complicated appendicitis and 108 had uncomplicated appendicitis. appendicoliths were independently associated with complicated appendicitis (OR = 1.88, 95% CI: 1.04–3.40, p = 0.036). In patients with appendicolith appendicitis, three factors were independently associated with complicated appendicitis: appendiceal diameter (OR = 1.20; 95% CI: 1.03–1.40), moderate-severe fat stranding (OR = 17.61; 95% CI: 3.19–97.33), and periappendiceal air (OR = 9.78; 95% CI: 1.17–81.46).

Conclusion

Appendiceal appendicoliths are closely related to acute complicated appendicitis. The diameter of the appendix and moderate-severe fat stranding, periappendiceal air on CT are significant indicators for identifying complicated appendicitis in acute appendicitis with appendicolith.