| Patients with an acute episode of anaphylaxis (n = 49) |
---|---|
Sex, n (%) | 24 female (49.0) 25 male (51.0) |
Age years, average (range) | 50 (19–82) |
Trigger, n (%) | |
 Hymenoptera venom | 26 (53.1) |
 Medication | 14 (28.6) |
 Food | 5 (10.2) |
 Other | 4 (8.2) |
Time from the onset of anaphylactic symptoms to sample collection at presentation to the emergency department, median (IQR) in minutes | 100 (69) |
Convalescent sampling after anaphylactic episode, median (IQR) in days | 80 (93) |
Emergency treatment, n (%) | |
 Epinephrine | 25 (51.0) |
 Corticosteroids | 43 (87.8) |
Grade of reaction, n (%) | |
 Mueller I | 6 (12.2) |
 Mueller II | 6 (14.6) |
 Mueller III | 16 (32.7) |
 Mueller IV | 21 (42.9) |
Symptoms, n (%) | |
 Any skin feature | 44 (89.8) |
 Any gastrointestinal feature | 15 (30.6) |
 Any respiratory feature | 26 (53.1) |
 Hypoxemia (SpO2 ≤ 92%) | 7 (14.3) |
 Any cardiovascular feature | 24 (49.0) |
 Hypotension (SBP < 90 mmHg) | 19 (38.8) |
 Acute tryptase > 11.4 µg/l, n (%) | 32 (65.3) |