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Short protocol for the study of paediatric patients with suspected betalactam antibiotic hypersensitivity and low
1Pediatric Allergology Unit, Hospital General Universitario de Alicante, Spain. lmoralg@gmail.com
Insights
Direct oral provocation safely identifies children without hypersensitivity to betalactam antibiotics. This approach is effective for low-risk patients, reducing unnecessary allergy testing and healthcare costs.
Area of Science:
- Pediatric Allergy and Immunology
- Clinical Pharmacology
Background:
- Suspected betalactam antibiotic hypersensitivity is common in children, leading to significant healthcare resource utilization.
- Confirmed hypersensitivity is rare, suggesting overdiagnosis and unnecessary investigations.
Purpose of the Study:
- To evaluate the safety and efficacy of a simplified oral provocation protocol for diagnosing betalactam antibiotic hypersensitivity in low-risk children.
- To reduce the need for extensive allergy testing in suspected cases.
Main Methods:
- A short oral provocation protocol was used for low-risk children (mild, non-immediate skin reactions to oral betalactams).
- Higher-risk patients followed the European Academy of Allergy and Clinical Immunology (EAACI) protocol (specific IgE, skin testing, then oral provocation).
- Informed consent was obtained prior to oral provocation.
Main Results:
- 67 patients completed oral provocation: 50 using the short protocol and 17 using the EAACI protocol.
- Only one patient exhibited a positive, mild, delayed reaction during provocation.
- The majority of patients, particularly in the low-risk group, tolerated the antibiotic challenge.
Conclusions:
- Direct oral provocation is a safe and effective method for ruling out betalactam antibiotic hypersensitivity in low-risk pediatric patients.
- This strategy can significantly decrease the need for more complex and costly allergy evaluations.
Background:
Suspected hypersensitivity to betalactam antibiotics in children is a frequent cause of consultation that proves costly in terms of resource utilization--particularly time. Such hypersensitivity is, however, rarely confirmed.
Methods:
A short protocol was introduced in which patients at low risk (single episode with mild, non-immediate skin symptoms after the administration of a betalactam antibiotic via the oral route) were subjected to oral provocation (following the obtaining of informed consent) without any other prior evaluations. Patients failing to meet these requirements were studied according to the protocol of the EAACI (specific IgE and skin testing prior to oral provocation).
Results:
A total of 78 patients (56 at low risk) were studied. Five patients had tolerated the medication after the episode, while another six patients failed to complete the study. The study with oral provocation was completed in the remaining 67 patients: according to the protocol of the EAACI in 17 patients, and using the short protocol in 50 patients. Only one patient showed a positive provocation test, of a delayed and mild nature.
Conclusions:
Direct oral provocation in low risk patients has been shown to be effective and safe in discarding hypersensitivity to betalactam antibiotics in the majority of the patients studied.
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