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Clinical Difference between Acute Appendicitis and Acute Right-Sided Colonic Diverticulitis
Ji Ho Song1, Yong Won Kim1,2, Sanghun Lee1,2
1Department of Emergency Medicine, Dongguk University Ilsan Hospital, Dongguk University College of Medicine, Goyang, Republic of Korea.
Background:
Clinical presentations of acute appendicitis (AA) and acute right-sided colonic diverticulitis (ARCD) are similar. However, the usual treatment for each disease differs between surgical and conservative management. The aim of this study was to identify clinical differences between AA and ARCD.
Method:
We performed a single-center retrospective study on adult patients, with uncomplicated AA and ARCD confirmed by computed tomography, who visited an emergency department between March 2018 and August 2019. Clinical variables including past medical history, presented symptoms and signs, and laboratory findings were compared between the two groups. A logistic regression analysis was subsequently performed to differentiate ARCD from AA based on results of univariate analyses.
Results:
A total of 212 (79.1%) and 56 (20.9%) patients were enrolled in AA and ARSD groups, respectively. Logistic regression analysis revealed that a past history of diverticulitis [OR: 102.679 (95% CI: 9.964-1058.055), p < 0.001] was associated with ARCD, while ketonuria [OR: 2.907 (95% CI: 1.091-7.745), p=0.033], anorexia [OR: 21.544 (95% CI: 3.905-118.868), p < 0.001], and neutrophilia [OR: 3.406 (95% CI: 1.243-9.336), p=0.017] were associated with AA.
Conclusion:
Anorexia, neutrophilia, and ketonuria were predictors of AA while a history of diverticulitis was a predictor of ARCD.
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