Table 2

 Presenting clinical symptoms and signs

Presenting symptoms and clinical signsNo of episodes (n = 32)Pre-existing asthma (n = 2)Patients with significant airway involvement requiring intubation (n = 2) v total number with signs/symptoms (%)
*One patient with asthma required intubation.
Stridor21*2/2 (100)
Cough511/5 (20)
Drooling of saliva2021/20 (5)
Shortness of breath311/3 (33)
Vomiting1822/18 (11)
Swollen lips141/14 (7)
Ulceration of oral mucosa201/20 (5)
Wheeze11/1 (100)
Tachypnoea21*1/2 (50)
Supplemental oxygen requirement21*2/2 (100)