Treatment of Subglottic Stenosis

Initial Assessment and Treatment

The American College of Rheumatology recommends immunosuppressive therapy, including glucocorticoids combined with other immunosuppressive agents like rituximab or cyclophosphamide, as first-line treatment for active inflammation with stenosis in granulomatosis with polyangiitis (GPA) patients, with treatment intensity based on severity of other organ manifestations 1
Surgical dilation with intralesional glucocorticoid injection should be reserved for stenoses that are longstanding, fibrotic, or unresponsive to immunosuppression in GPA patients 1
Concurrent surgical dilation may be considered alongside medical treatment only when immediate intervention is required, such as critical airway narrowing, in GPA patients 1
Management of subglottic stenosis should involve an otolaryngologist or pulmonologist with expertise in these lesions 1

The American Journal of Respiratory and Critical Care Medicine advises against using prophylactic antibiotics to prevent subglottic stenosis in intubated patients, as no data support this practice 2
In intubated neonates, using appropriate endotracheal tube sizing (tube size-to-gestational age ratio <0.1) can help prevent acquired stenosis 2
Postextubation stridor is a significant marker for moderate to severe subglottic stenosis and warrants immediate evaluation 2

The American College of Rheumatology recommends Pneumocystis jirovecii prophylaxis as mandatory for patients receiving rituximab (≥6 months after last dose) or cyclophosphamide 1

The American Thoracic Society recommends anterior cricoid split as the preferred initial surgical approach for severe subglottic stenosis, allowing subglottic space widening and healing without tracheostomy 3, 4, 5
If anterior cricoid split fails or the patient doesn't meet criteria, tracheostomy is mandatory to bypass obstruction, though this delays speech development and increases care complexity 3, 4, 5
Laryngotracheal reconstruction can be performed gradually after tracheostomy placement using various surgical techniques 3, 4, 5

The American College of Rheumatology recommends immunosuppressive therapy (glucocorticoids plus other agents) over surgical dilation alone for actively inflamed subglottic stenosis with GPA 6, 7
Surgical dilation with intralesional glucocorticoid injection is more appropriate for longstanding, fibrotic stenoses unresponsive to immunosuppression 6, 7

Balloon dilation under direct visualization or fluoroscopic guidance effectively treats distal tracheal and bronchial stenoses 3, 4, 5
Electroresection is an alternative for fixed airway obstruction 3, 4, 5

Racemic epinephrine provides temporary relief for mild to moderate stenosis during upper respiratory infections by reducing superimposed edema 3, 4, 5
Systemic corticosteroids have been used early in stenosis course, though formal efficacy assessment is lacking 3, 4, 5