Perioperative medicine & outcomes

The Japanese Epidemiologic Study for Perioperative Anaphylaxis, a prospective nationwide study: clinical signs, severity, and therapeutic agents

Br J AnaesthPublished Prospective cohort study

Authors' conclusion

The clinical signs and treatments of perioperative anaphylaxis are variable, and the choice regarding epinephrine administration is based on symptom severity.

Study context

Population
Patients with perioperative anaphylaxis, Japananalysed
Participants
43 patients
Exposure
No epinephrine vs i.v. epinephrine vs i.m. epinephrine
Outcome
Clinical signs of perioperative anaphylaxis
Methodological detailsnationwide
  • Nationwide

Main finding

As reported in the abstract

Cardiovascular signs
88.4%
Skin signs
81.4%
Respiratory signs
60.5%
Time from first signs to diagnosis, median (min)
10 (5.0-17.8)
Epinephrine unused
30.2%
Epinephrine i.v.
48.8%
Epinephrine i.m.
20.9%
Time from diagnosis to epinephrine, median (IQR 1.5-8.0) min
7
Antihistamines and corticosteroids each used
69.8%

Observational data: associations, not effects.

Further findings

Mean

OutcomeNo epinephrinei.v. epinephrinei.m. epinephrine
Worst shock index by epinephrine use1.35 (SD 0.41)2.77 (SD 0.90)1.89 (SD 0.77)
Worst shock index by epinephrine use — Higher with i.v. epinephrine than no epinephrine and i.m. epinephrine
P<0.001

Original publication

The Japanese Epidemiologic Study for Perioperative Anaphylaxis, a prospective nationwide study: clinical signs, severity, and therapeutic agents. Br J Anaesth. Published 24 March 2023. doi:10.1016/j.bja.2023.02.023

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