The diagnostic values of preoperative laboratory markers in children with complicated appendicitis
Hany Noh1, Sei-Jin Chang, Airi Han
1Department of General Surgery, Yonsei University Wonju College of Medicine, Wonju, Korea.
Insights
Pediatric appendicitis diagnosis is improved using common lab tests. Elevated white blood cell (WBC) count, C-reactive protein (CRP), and bilirubin levels help identify complicated appendicitis in children, enabling faster treatment.
Area of Science:
- Pediatric Surgery
- Emergency Medicine
- Clinical Diagnostics
Background:
- Acute appendicitis is a common surgical emergency in children.
- Delayed diagnosis in pediatric patients often results from nonspecific symptoms and communication challenges, leading to complicated cases.
Purpose of the Study:
- To investigate the diagnostic significance of common laboratory markers for acute appendicitis in pediatric patients.
- To assess the role of white blood cell (WBC), C-reactive protein (CRP), and bilirubin in differentiating simple from complicated appendicitis.
Main Methods:
- Retrospective analysis of 421 pediatric patients (≤15 years) who underwent appendectomy.
- Evaluation of preoperative levels of WBC, CRP, and bilirubin.
- Classification of appendicitis into simple or complicated based on postoperative histology.
Main Results:
- Patients with complicated appendicitis were younger (P = 0.005).
- Significantly higher WBC, CRP, and bilirubin levels were observed in the complicated appendicitis group (P < 0.001 for WBC and CRP, P = 0.002 for bilirubin).
- Elevated CRP (HR, 2.53) and WBC (HR, 2.42) showed the highest risk for complicated appendicitis, with WBC (95.2%) and CRP (86.3%) demonstrating high sensitivity.
Conclusions:
- Younger age (<10 years) is associated with a higher risk of complicated appendicitis.
- Preoperative WBC, CRP, and bilirubin levels are valuable clinical tools for diagnosing complicated appendicitis in pediatric patients.
- Utilizing these markers can facilitate prompt diagnosis and optimize management for pediatric appendicitis.
Purpose:
Accurate diagnosis and optimal management of acute appendicitis, despite being the most common surgical emergency encountered in emergency departments, is often delayed in pediatric patients due to nonspecific symptoms and communication barriers, often leading to more complicated cases. The aim of this study is to investigate the diagnostic significance of common laboratory markers.
Methods:
A total of 421 patients aged 15 and younger underwent surgical treatment for acute appendicitis. We conducted a retrospective analysis for white blood cell (WBC), C-reactive protein (CRP) and bilirubin. All patients were classified into simple or complicated appendicitis groups based on postoperative histology.
Results:
The mean age of the patients in the complicated appendicitis group was younger than that in the simple group (P = 0.005). WBC, CRP and bilirubin levels were significantly higher in the complicated appendicitis group (P < 0.001, <0.001, 0.002). The relative risk for complicated appendicitis was calculated using age, WBC, CRP and bilirubin. Elevated CRP levels were associated with the highest risk for complicated appendicitis (hazard ratio [HR], 2.53; 95% confidence interval [CI], 1.38 to 4.65) followed by WBC (HR, 2.42; 95% CI, 1.07 to 5.46) and bilirubin (HR, 2.04; 95% CI, 1.09 to 3.82). The most sensitive markers for diagnosing complicated appendicitis were WBC (95.2%) and CRP (86.3%). Bilirubin levels showed the highest specificity at 74.8%.
Conclusion:
The risk of complicated appendicitis was significantly higher in patients younger than 10 years old. Preoperative WBC, CRP and bilirubin have clinical value in diagnosing complicated appendicitis with a HR of 2.0 to 2.5. Our results suggest that the utilization of WBC, CRP, and bilirubin can assist in the diagnosis of complicated appendicitis in pediatric patients, allowing prompt diagnosis and optimal management.
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