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Handheld Metal Detector Screening for Metallic Foreign Body Ingestion in Children
Published on: September 11, 2018
Prevalence, clinical features and management of pediatric magnetic foreign body ingestions
Melissa M Tavarez1, Richard A Saladino, Barbara A Gaines
1Department of Pediatrics, Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania 152224, USA.
Insights
Ingesting multiple magnetic foreign bodies (FBs) in children poses a high risk of serious complications like intestinal perforation. Single magnetic FB ingestions can often be managed conservatively, but multiple magnet ingestion requires aggressive intervention.
Area of Science:
- Pediatric Gastroenterology
- Emergency Medicine
- Surgical Outcomes
Background:
- Foreign body (FB) ingestions are common in children.
- Magnetic FBs present unique risks due to attraction, potentially causing intestinal obstruction.
Purpose of the Study:
- To determine the prevalence of magnetic FB ingestions.
- To describe the clinical presentation and management of these cases.
- To identify risk factors for complications.
Main Methods:
- Retrospective chart review of pediatric patients with FB ingestions.
- Inclusion criteria: patients presenting to the Emergency Department (ED) or admitted with FB ingestions.
- Data collected: magnetic FB ingestions from June 2003 to July 2009.
Main Results:
- Identified 38 cases of magnetic FB ingestion (0.01% prevalence).
- Single magnet ingestion (79%) often managed endoscopically without complications.
- Multiple magnet ingestion (21%) led to a 50% complication rate, including intestinal perforations requiring surgery.
Conclusions:
- Single magnetic FB ingestion can typically be managed like other simple FBs.
- Multiple magnetic FB ingestion is associated with significant morbidity and necessitates aggressive management.
- An algorithm for managing pediatric magnetic FB ingestions is proposed.
Background:
Foreign body (FB) ingestions are frequent in children. Whereas the majority of FBs pass spontaneously through the gastrointestinal tract, ingestion of magnetic FBs pose a particular risk for obstruction due to proximate attraction through the intestinal wall.
Study Objectives:
We aimed to identify the prevalence, clinical presentation, and management of magnetic FB ingestions at our tertiary care institution.
Methods:
We performed a retrospective chart review of medical records of patients presenting to the pediatric Emergency Department (ED) or admitted to the hospital with FB ingestions from June 2003-July 2009. From those cases, patients with magnetic FB ingestions were identified.
Results:
During the study period, 337,839 patients presented to the ED; 38 cases of magnetic FB ingestion were identified (prevalence 0.01%). Abdominal radiography was obtained in all cases. Ingestion of a single magnet occurred in 30 of 38 cases (79%). Of those, 4 patients underwent endoscopic removal due to signs of FB impaction in the esophagus or pylorus; no complications were noted. Ingestion of multiple magnets (range 2-6) occurred in 8 of 38 cases. Four of the 8 patients with multiple magnetic FBs (50%) presented with signs of peritonitis and required operative repair of multiple intestinal perforations. No deaths were identified.
Conclusion:
Although ingestion of a single magnetic FB may, in most cases, be managed as a simple FB ingestion, the ingestion of multiple magnetic FB is associated with a high risk of complication and requires aggressive management. We propose an algorithm for management of children with magnetic FB ingestions.
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