For Doctors in a Hurry
- Clinicians seek to reduce pediatric computed tomography use for suspected appendicitis to meet national quality improvement benchmarks.
- The researchers conducted a cohort study of patients younger than 19 years diagnosed with appendicitis between 2021 and 2023.
- Computed tomography utilization decreased from 39% to 22% while average emergency department length of stay dropped by 103 minutes.
- The authors concluded that a multidisciplinary clinical pathway effectively prioritizes ultrasound and reduces unnecessary radiation exposure in children.
- Physicians should consider implementing similar structured pathways to improve diagnostic efficiency and lower radiation risks for pediatric patients.
Refining the Diagnostic Hierarchy in Pediatric Appendicitis
Acute appendicitis remains the most frequent surgical emergency in the pediatric population, though establishing a definitive diagnosis is often complicated by atypical clinical presentations [1, 2]. While computed tomography (CT) provides high diagnostic accuracy with a pooled sensitivity of 94 to 97 percent, its use in children is increasingly scrutinized due to the risks associated with ionizing radiation [1, 3]. Current evidence suggests that while ultrasound is a cost-effective first-line tool [4], its utility is frequently limited by operator dependence and non-diagnostic (indeterminate) scan rates as high as 35.7 percent [3]. Consequently, clinical practice guidelines emphasize standardized pathways that prioritize non-ionizing modalities like magnetic resonance imaging (MRI), which demonstrates a pooled sensitivity of 96.6 percent and specificity of 95.9 percent [3, 5, 6]. A new study now evaluates how the implementation of a multidisciplinary clinical pathway affects imaging utilization and diagnostic efficiency in a pediatric emergency setting.
Standardizing the Multidisciplinary Imaging Protocol
To address the risks of ionizing radiation in pediatric populations, the National Surgical Quality Improvement Program-Pediatric (NSQIP-P) established a quality benchmark recommending that computed tomography (CT) scan utilization be maintained at less than 25 percent in children presenting with suspected appendicitis. In response to this national standard, a multidisciplinary team developed a standardized pediatric appendicitis clinical pathway designed to optimize diagnostic accuracy while minimizing radiation exposure. This level III cohort study evaluated the implementation of the protocol, which fundamentally restructured the diagnostic hierarchy by mandating ultrasound as the primary, first-line imaging modality for all pediatric patients younger than 19 years of age with clinical signs of appendicitis. For the practicing clinician, this shift emphasizes the role of ultrasound not just as a screening tool, but as a definitive gatekeeper in the surgical workup.
Quality Improvement Methodology and Process Control
The clinical pathway introduced a rigorous gatekeeping mechanism to prevent reflexive imaging. Under the new protocol, a CT scan was no longer a default secondary step for indeterminate cases. Instead, the pathway reserved CT use exclusively for patients who had a non-diagnostic ultrasound (an imaging result that fails to clearly visualize the appendix or provide secondary signs of inflammation, such as periappendiceal fat stranding or fluid) and only after a formal agreement was reached between the pediatric emergency medicine and surgical teams. By requiring a consensus between the emergency department and the surgical consultants before ordering advanced imaging, the multidisciplinary team aimed to ensure that CT scans were utilized only when clinical suspicion remained high despite inconclusive initial imaging. This collaborative approach ensures that the decision to irradiate a child is a shared clinical judgment rather than a unilateral diagnostic reflex.
Reductions in Radiation Exposure and Operational Bottlenecks
The researchers conducted a comprehensive review of all patients younger than 19 years of age who received a diagnosis of appendicitis between 2021 and 2023. To implement the clinical pathway effectively, the multidisciplinary team utilized a series of Plan-Do-Study-Act cycles (an iterative four-stage model for improving a process by testing a change, observing the results, and acting on what is learned). This structured approach required the active involvement of multiple clinical teams, including pediatric emergency medicine, radiology, and surgery, to ensure that the protocol was integrated into the daily workflow of the emergency department. To monitor the impact of the pathway on hospital operations, the study used emergency department length of stay as a balancing measure (a metric used to ensure that improvements in one area, such as reduced radiation exposure, do not inadvertently cause new problems in another area, such as increased patient wait times or crowding).
References
1. Hermanto JS, Timothy AT, Telasman M. A Comprehensive Systematic Review of Diagnostic Approaches in Acute Appendicitis: A Comparative Analysis. International journal of medical science and health research. 2026. doi:10.70070/w4p7yh33
2. Fialho T, Dominguez JV, Rasquel BRG, Boas VV, Oliveira GGBD, Haber LSDA. RESULTS OF MINIMALLY INVASIVE VERSUS OPEN APPROACHES IN PEDIATRIC APPENDICITIS: A SYSTEMATIC REVIEW. Lumen et Virtus. 2026. doi:10.56238/levv17n58-005
3. Tandoyo AD, Hendwell. Comparative Diagnostic Accuracy of Computed Tomography, Magnetic Resonance Imaging, and Ultrasonography for Acute Appendicitis: A Systematic Review. International journal of medical science and health research. 2025. doi:10.70070/k38zr345
4. Lentz B, Fong T, Rhyne R, Risko N. A systematic review of the cost-effectiveness of ultrasound in emergency care settings. The Ultrasound Journal. 2021. doi:10.1186/s13089-021-00216-8
5. Saverio SD, Podda M, Simone BD, et al. Diagnosis and treatment of acute appendicitis: 2020 update of the WSES Jerusalem guidelines. World Journal of Emergency Surgery. 2020. doi:10.1186/s13017-020-00306-3
6. Eng K, Abadeh A, Ligocki C, et al. Acute Appendicitis: A Meta-Analysis of the Diagnostic Accuracy of US, CT, and MRI as Second-Line Imaging Tests after an Initial US. Radiology. 2018. doi:10.1148/radiol.2018180318
