Table 1.
Patient | Reaction Onset | Atopy History |
Signs and Symptoms |
Brighton Level /Vaccine Dose |
Treatment | Time of Blood Collection after Onset of Anaphylaxis | Tryptase ng/mL |
C3a ug/mL |
---|---|---|---|---|---|---|---|---|
1 | 30 min | Asthma, urticaria to etoricoxib | Flushing, periorbital edema, globus sensation, wheezing | 1 (Second dose) |
IM Adrenaline X 2 doses, IV hydrocortisone, IV diphenhydramine, nebulised salbutamol | 3 h | 3.2 | 83.2 |
5 weeks | N.A. | 58.6 | ||||||
2 | 30 min | Asthma, allergic rhinitis | Flushing, erythema, breathlessness, globus sensation, wheezing | 1 (First dose) |
IM adrenaline, IV hydrocortisone, IV diphenhydramine, IV cimetidine, nebulised salbutamol and ipratropium | 6 h | 2.2 | 82.1 |
41 h | 3 | 81.2 | ||||||
4 weeks | N.A. | 9.0 | ||||||
3 | 20 min | Chronic rhinosinusitis | Generalised urticaria, periorbital edema, globus sensation, breathlessness | 2 (Second dose) |
IM adrenaline, IV hydrocortisone and diphenhydramine | 6 h | 2.3 | 71.7 |
22 h | 1.9 | 28.0 | ||||||
5 weeks | N.A. | 2.5 | ||||||
Vaccine-naive controls (n = 6), Mean ± SD | Not Applicable | N.A. | <10 | |||||
Vaccine-tolerant controls (n = 6), Mean ± SD | Not Applicable | N.A. | <10 |
Normal cut-off as follows: Tryptase < 11.4 ng/mL (according to manufacturer’s instructions) Abbreviations: N.A., Not Available; IM, Intramuscular; IV, Intravenous.