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Costs and effectiveness of ultrasonography and limited computed tomography for diagnosing appendicitis in children
B M Peña1, G A Taylor, S J Fishman
1Department of Medicine, Division of Emergency Medicine, Children's Hospital, Harvard Medical School, Boston, Massachusetts 02215, USA. pena_b@a1.tch.harvard.edu
Insights
This study shows that using ultrasonography (US) followed by computed tomography with rectal contrast (CTRC) significantly improves management decisions and saves costs for pediatric appendicitis diagnosis. The protocol led to beneficial changes in 61.9% of cases and reduced costs by $565 per patient.
Area of Science:
- Pediatric Radiology
- Diagnostic Imaging
- Abdominal Imaging
Background:
- Acute appendicitis is a common surgical emergency in children.
- Accurate diagnosis is crucial to avoid complications and unnecessary surgery.
- A protocol combining ultrasonography (US) and computed tomography with rectal contrast (CTRC) has shown high diagnostic accuracy.
Purpose of the Study:
- To evaluate the impact of a combined US and CTRC protocol on patient management and healthcare costs in pediatric appendicitis.
- To assess the effectiveness of this diagnostic pathway in a real-world clinical setting.
Main Methods:
- Prospective cohort study involving 139 children (3-21 years) with equivocal clinical findings for appendicitis.
- Children underwent US; those with negative/equivocal results proceeded to CTRC.
- Surgical management plans and hospital costs were analyzed before and after imaging.
Main Results:
- The US followed by CTRC protocol led to a beneficial change in management for 61.9% of children.
- Compared to US alone (38.7% beneficial change), the combined protocol improved decision-making (68.5% beneficial change).
- The protocol resulted in significant cost savings of $565 per patient, totaling $78,503.99.
Conclusions:
- The US followed by CTRC protocol is effective in guiding management for pediatric appendicitis with equivocal presentations.
- This imaging strategy optimizes patient care and achieves substantial cost savings.
- The protocol offers a high rate of beneficial management changes and economic advantages.
Background:
A protocol of ultrasonography (US) followed by computed tomography with rectal contrast (CTRC) has been shown to be 94% accurate in the diagnosis of acute appendicitis in children.
Objective:
To evaluate the changes in patient management and costs of a protocol using US and CTRC in the evaluation of appendicitis in children.
Design, Setting, And Subjects:
Prospective cohort study of 139 children between 3 and 21 years of age who had equivocal clinical findings for acute appendicitis seen in the emergency department of a large, urban pediatric teaching hospital between July 1998 and December 1998.
Protocol:
Children with equivocal clinical presentations for acute appendicitis were prospectively evaluated with US. Patients with positive findings for acute appendicitis went directly to the operating room. Patients with negative or equivocal findings on US underwent CTRC. Surgical management plans were recorded before imaging, after US, and after CTRC.
Main Outcome Measures:
Surgical management plans before and after the imaging protocol as well as total hospital direct and indirect costs incurred or saved by each change in management were determined. Costs were obtained through the hospital's cost database and by ratios of costs to charges.
Results:
Of the 139 children, the protocol resulted in a beneficial change in management in 86 children (61.9%), no change in management in 50 children (36.0%) and an incorrect change in management in 3 children (2.1%). US alone resulted in a beneficial change in management decision in 12/31 children (38.7%), while US followed by CTRC resulted in a beneficial change in management in 74/108 children (68.5%). The protocol resulted in a total cost savings of $78 503.99 or $565/patient.
Conclusion:
A protocol of US followed by CTRC in children with negative or equivocal US examinations results in a high rate of beneficial change in management as well as in total cost savings in children with equivocal clinical presentations for suspected appendicitis.
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