Citation

Strickland M, Rosenfield D, Fecteau A. J. Pediatr. 2014; 165(2): 332-335.

Affiliation

Hospital for Sick Children, Toronto, Ontario, Canada; Division of General Surgery, University of Toronto, Toronto, Ontario, Canada.

Copyright

(Copyright © 2014, Elsevier Publishing)

DOI

10.1016/j.jpeds.2014.04.002

PMID

24836391

Abstract

OBJECTIVE: To examine trends in magnet-related injuries and hypothesize that changes are a result of new neodymium-iron-boron magnets that are smaller, stronger, and commonly sold in sets. STUDY DESIGN: In this retrospective chart review, we searched our institution's electronic patient record for patients less than 18 years old who were diagnosed with magnetic foreign body ingestion between 2002 and 2012. Cases were analyzed for patient, magnetic foreign body, and management characteristics. Incidence rates and case characteristics were compared between the first 8 years of the study period and the last 3.

RESULTS: We identified 94 patients who met our search criteria. Of confirmed ingestions, the median age was 4.5 years and 65% were male. The incidence of visits increased between the 2002-2009 period and the 2010-2012 period by a factor of 2.94 (95% CI, 1.84-4.70), whereas the incidence of injuries involving multiple magnets increased by a factor of 8.40 (95% CI, 3.44-20.56). The volume of the magnets decreased from 878.6 mm(3) to 259.8 mm(3). Six cases required surgical removal of the magnets because of intra-abdominal sepsis or concern for imminent bowel perforation.

CONCLUSIONS: Since 2002, there has been a significant increase in the incidence of magnetic foreign body injuries. These injuries have increasingly involved multiple, smaller magnets and required operative intervention.

Keywords: Multiple magnet ingestion

Language: en