Data Sources
Patient demographics, GPA organ involvement, induction IS utilised,
investigations, surgical interventions and follow-up data were extracted
from the Trust’s electronic records system.
The severity of stenosis was classified using the Cotton-Myer (C-M)
classification system; an average subglottic diameter taken as 14mm and
17mm for females and males respectively.4
Relapses were defined as active inflammatory recurrence in the airway or
recurrent SGS requiring further treatment, whilst remission was
considered when a patent airway was maintained and no inflammatory
recurrence seen.