Clinical factors associated with prehospital exacerbation of anaphylaxis in children

Takeshi Ninchoji, Sota Iwatani, Masahiro Nishiyama, Naohiro Kamiyoshi, Taku Nakagawa, Mariko Tani Guchi-Ikeda, Naoya Morisada, Kazuto Ishibashi, Kazumoto Iijima, Akihito Ishida, Ichiro Morioka

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


BACKGROUND: The severity of anaphylaxis often varies with time. Because prehospital intervention and initial treatment at hospital are affected by changing symptoms, the aim of this study was to determine the clinical factors associated with prehospital remission and exacerbation in the course of anaphylaxis in children. METHODS: Data from medical records on anaphylactic children who were treated for 3 years at Kobe Children's Primary Emergency Medical Center were retrospectively analyzed. Severity of symptoms was evaluated using Sampson's grade (S-G). Patients with increased S-G at the hospital visit from disease onset (worsened group) were compared with those with decreased S-G at the visit (improved group). Uni-and multivariate analyses were performed to identify clinical differences between the groups, with P<0.05 considered statistically significant. RESULTS: Among 115 anaphylactic children who showed S-G changes from onset to hospital visit, 43 were assigned to the worsened group and 72 to the improved group. Univariate analysis showed no significant differences in age, sex, history of asthma, prehospital treatment, type of antigen, or period from symptom onset to hospital visit between the groups. However, the time from antigen exposure to symptom onset was significantly longer, and S-G at onset was significantly lower in the worsened group than in the improved group. Multivariate analysis identified time from antigen exposure to symptom onset (odds ratio: 3.89, P<0.01) and S-G at onset (odds ratio: 0.06, P<0.001) as independent predictors of exacerbation. CONCLUSIONS: Anaphylactic children with slower and milder symptoms at onset are more likely to show deterioration.

Original languageEnglish
Pages (from-to)212-216
Number of pages5
JournalMinerva Pediatrica
Issue number3
Publication statusPublished - 06-2018
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Pediatrics, Perinatology, and Child Health


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