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The Association Between Barium Examination and Subsequent Appendicitis: A Nationwide Population-Based Study
Hao-Ming Li1, Lee-Ren Yeh1, Ying-Kai Huang2
1Department of Radiology, E-Da Hospital and I-Shou University, Kaohsiung, Taiwan.
Barium examination (BE) is linked to a higher risk of appendicitis, particularly in the initial two months post-procedure. This association highlights a potential diagnostic challenge that clinicians must consider for timely appendicitis diagnosis.
Area of Science:
- Gastroenterology
- Radiology
- Epidemiology
Background:
- The relationship between barium examination (BE) and subsequent appendicitis risk is not well-established.
- Potential risks associated with BE may be overlooked in clinical practice.
Purpose of the Study:
- To investigate the association between barium examination and the risk of developing appendicitis.
- To quantify the appendicitis risk in patients who have undergone BE.
Main Methods:
- A nationwide, population-based cohort study utilizing the Taiwan National Health Insurance Research Database.
- Inclusion of 24,885 patients who underwent BE and 98,384 matched controls without BE exposure.
- Analysis using Kaplan-Meier curves, log-rank test, and Cox proportional hazards regression.
Main Results:
- The cumulative incidence of appendicitis was significantly higher in the BE cohort (1.19 per 1000 person-years) compared to the non-BE cohort (0.80 per 1000 person-years).
- Adjusted analyses revealed a 1.46-fold increased risk of appendicitis in the BE cohort (aHR = 1.46, 95% CI = 1.23-1.73).
- A markedly elevated risk was observed within the first two months post-BE (aHR = 9.72, 95% CI = 4.65-20.3).
Conclusions:
- Barium examination is associated with a time-dependent increase in appendicitis risk.
- Clinicians should maintain a high index of suspicion for appendicitis in patients with recent BE to prevent diagnostic delays.
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