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Diagnosing perforated appendicitis in pediatric patients: a new model
Veerle A B van den Bogaard1, Sjoerd M Euser2, Tjeerd van der Ploeg3
1Department of Pediatrics, Spaarne Hospital, Hoofddorp, the Netherlands.
Insights
This study identifies key predictors for perforated appendicitis in children, including temperature, CRP, and ultrasound findings. The developed model aids in early identification of high-risk cases, potentially preventing complications.
Area of Science:
- Pediatric Surgery
- Diagnostic Imaging
- Clinical Prediction Modeling
Background:
- Appendicitis diagnosis in children often relies on symptoms and tests, but predicting severity, specifically perforation, requires further investigation.
- Understanding predictors of perforated appendicitis is crucial for timely intervention and improved patient outcomes.
Purpose of the Study:
- To determine the predictive value of patient characteristics and diagnostic tests for differentiating perforated from non-perforated appendicitis in pediatric patients.
- To develop a clinical prediction model for identifying children at high risk of perforated appendicitis.
Main Methods:
- Retrospective analysis of 375 pediatric patients who underwent appendectomy between 2009 and 2013.
- Collection of patient demographics, clinical history, physical examination findings, laboratory results (including CRP and WBC), and ultrasound data.
- Application of univariate and multivariate logistic regression to identify predictors of perforation.
Main Results:
- Perforated appendicitis was present in 25.9% (97/375) of the pediatric patients.
- Initial univariate analysis indicated age, symptom duration, temperature, vomiting, CRP, WBC, ultrasound findings, and appendix diameter as potential predictors.
- A multivariate model incorporating temperature, CRP, visible appendix, free fluid on ultrasound, and appendix diameter achieved an AUC of 0.91, with 85.2% sensitivity and 81.2% specificity.
Conclusions:
- A validated prediction model can effectively identify children with a high risk of perforated appendicitis.
- Early identification of high-risk children may facilitate prompt surgical intervention, potentially reducing complications and hospital stay.
Objective:
Studies have investigated sensitivity and specificity of symptoms and tests for diagnosing appendicitis in children. Less is known with regard to the predictive value of these symptoms and tests with respect to the severity of appendicitis. The aim of this study was to determine the predictive value of patient's characteristics and tests for discriminating between perforated and nonperforated appendicitis in children.
Patients And Methods:
Pediatric patients who underwent an appendectomy at Spaarne Hospital Hoofddorp, the Netherlands, between January 1, 2009 and December 31, 2013, were included. Baseline patient's characteristics, history, physical examination, laboratory data and results of ultrasounds were collected. Univariate and multivariate logistic regressions were used to determine predictors of perforation.
Results:
In total, 375 patients were included in this study of which 97 children (25.9%) had significant signs of perforation. Univariate analysis showed that age, duration of complaints, temperature, vomiting, CRP, WBC, different findings on ultrasound and the diameter of the appendix were good predictors of a perforated appendicitis. The final multivariate prediction model included temperature, CRP, clearly visible appendix and free fluids on ultrasound and diameter of the appendix and resulted in an area under the curve (AUC) of 0.91 showing sensitivity and specificity of respectively 85.2% and 81.2%.
Conclusion:
This prediction model can be used for identification of 'high-risk' children for a perforated appendicitis and might be helpful to prevent complications and longer hospitalization by bringing these children to theater earlier.
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