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Appendicitis: usefulness of US in diagnosis in a pediatric population
C J Sivit1, K D Newman, D A Boenning
1Department of Diagnostic Imaging and Radiology, Children's National Medical Center, Washington, DC 20010.
Insights
Graded compression ultrasonography (US) accurately diagnoses appendicitis in children. This imaging technique demonstrated high sensitivity and specificity, proving effective in pediatric appendicitis evaluation.
Area of Science:
- Pediatric Radiology
- Diagnostic Imaging
- Surgical Pediatrics
Background:
- Appendicitis is a common surgical emergency in children.
- Accurate diagnosis is crucial to avoid complications and unnecessary surgery.
- Clinical assessment alone can be challenging in pediatric appendicitis.
Purpose of the Study:
- To evaluate the sensitivity, specificity, and accuracy of graded compression ultrasonography (US) for diagnosing appendicitis in pediatric patients.
- To compare the diagnostic performance of US with clinical assessment in children with suspected appendicitis.
Main Methods:
- Prospective study involving 180 pediatric patients with suspected appendicitis.
- Patients were categorized into low, intermediate, and high clinical risk groups.
- Graded compression ultrasonography (US) was performed for diagnosis.
Main Results:
- In low- and intermediate-risk groups (141 patients), US showed 100% sensitivity, 97% specificity, and 97% accuracy for appendicitis.
- In the high-risk group (39 patients), US demonstrated 81% sensitivity, 86% specificity, and 82% accuracy.
- US correctly identified appendicitis in all 18 surgically confirmed cases initially managed with observation or further testing.
Conclusions:
- Graded compression ultrasonography (US) is a highly sensitive and specific imaging modality for diagnosing appendicitis in children.
- US provides valuable diagnostic information, particularly in lower-risk pediatric patients.
- The study supports the utility of US in the clinical management of suspected pediatric appendicitis.
Abstract:
One hundred eighty pediatric patients with suspected appendicitis were prospectively examined with graded compression ultrasonography (US) to assess the sensitivity, specificity, and accuracy of graded compression US in the diagnosis of appendicitis in children and to compare those results with results of clinical assessment in the diagnosis of this disorder. Patients were assigned to one of three groups prior to US based on the clinical level of confidence that appendicitis was present and on the planned management decision. Of 141 patients in the low- and intermediate-clinical risk categories, 20 (14%) had appendicitis: US had a sensitivity of 100%, specificity of 97%, and accuracy of 97% in these two groups. Of 39 patients in the high-clinical risk category, 32 (82%) had appendicitis: US had a sensitivity of 81%, specificity of 86%, and accuracy of 82%. Of 52 patients with surgically proved appendicitis, the initial management decision was to discharge to home or admit for observation and further testing in 18 (35%). Results at US were positive for appendicitis in all 18 patients in the latter two categories.