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Hypersensitivity reaction to single contrast barium meal studies in children
D A Stringer1, E Hassall, A C Ferguson
1Department of Radiology, British Columbia's Children's Hospital, Vancouver, Canada.
Insights
Severe hypersensitivity reactions occurred in two children after barium meal examinations, especially in those with food allergies. Alternative contrast agents like pure barium sulfate may be safer for at-risk pediatric patients.
Area of Science:
- Pediatric Allergy and Immunology
- Radiology and Imaging
- Gastroenterology
Background:
- Barium sulfate is a common contrast agent for gastrointestinal imaging.
- Hypersensitivity reactions to barium sulfate are rare but can be severe.
- Children with pre-existing food allergies may be at increased risk.
Observation:
- Two pediatric cases of hypersensitivity reactions post-barium meal examination are presented.
- One patient experienced a severe reaction, linked to a known severe food allergy.
- Reactions varied in severity, highlighting a spectrum of responses.
Findings:
- Children with severe food allergies may have a higher risk of hypersensitivity to barium sulfate.
- Immediate resuscitation capabilities are crucial when performing contrast studies in at-risk children.
- Pure barium sulfate might be a safer alternative for contrast studies in this population.
Implications:
- Clinicians should carefully assess food allergy history before barium studies in children.
- Facilities must be equipped for emergency management during contrast studies for high-risk pediatric patients.
- Consideration of alternative contrast agents like pure barium sulfate is recommended for food-allergic children.
Abstract:
We report two children who developed hypersensitivity reactions of varying severity following barium meal examination, the more severe of which was associated with documented severe food allergy. For children with this risk factor, contrast studies should be performed only where facilities and personnel are available for immediate resuscitation of all sizes of child. For children such as these, consideration should be given to the use of pure barium sulphate.