For families managing food allergies, a new study from the University of Bristol and Bristol Children's Hospital offers findings that could help prevent future tragedies. While fatal food anaphylaxis remains rare, researchers have identified critical gaps in how children receive life-saving adrenaline treatment — and their work is pointing toward clear ways to save young lives.
The research, presented at the Royal College of Emergency Medicine Conference, examined data from the National Childhood Mortality Database on 19 children who died from food-induced anaphylaxis between 2019 and 2023. The numbers are stark: in 74 percent of cases, no adrenaline autoinjector was administered, or only a single dose was given before cardiac arrest. Seven of the 19 children — 37 percent — were not carrying their AAI at all when the reaction occurred.
Perhaps most striking is the timeline. In the 12 cases where data was available, the average time from symptom onset to cardiac arrest was just 14 minutes. In every single case, the child went into cardiac arrest before reaching an emergency department.
"There is a very short window of time, often just minutes, in which appropriate treatment can potentially alter the clinical course of these events," said Dr. Tom Roberts, NIHR Academic Clinical Lecturer in Emergency Medicine at Bristol Medical School and an A&E clinician at North Bristol NHS Trust. "Delays in delivering adrenaline treatment, which sometimes may require more than one dose, can have fatal consequences."
The research, published in Clinical & Experimental Allergy, also found that airway and breathing problems — not heart failure — were the primary cause of death in nearly all cases analyzed. This finding has direct implications for hospital treatment protocols, which currently focus on heart and circulatory failure.
"Current NHS guidelines focus on heart and circulatory failure," Dr. Roberts explained. "Our research suggests children who reach the hospital may not be getting the most effective emergency treatment they need, in the time they need it."
Hospital admissions for food allergies in children have risen by 600 percent over the past two decades, and a 2024 Lancet study confirmed food allergy rates doubled between 2008 and 2018. Of the deaths studied, teenagers aged 15 to 17 accounted for 47 percent of fatalities, while children aged 10 to 14 represented 42 percent.
Dr. John Covney, the study's lead author from Bristol Children's Hospital, said the findings point to two clear areas for intervention: ensuring every child at risk carries an AAI at all times, and updating hospital guidelines to prioritize breathing support alongside cardiac care.
The researchers are calling for updated guidelines on adrenaline use and emergency management of severe food anaphylaxis. For families, the message is equally clear: those few minutes before emergency services arrive represent the critical window where swift, proper treatment can change everything.