IgG4-infiltrate in post-intubation tracheal stenosis: a call to interventional pulmonologist and thoracic surgeons.

It is suggested that Covid-19 patients have almost double the risk of developing tracheal injuries. This work supports the idea of a major predisposition for such injuries in Covid-19 patients due to a possible immune-mediated mechanism leading to aberrant and fibrotic wound healing following a trigger insult (in this case MV with oro-tracheal tube). In the near future an increasing incidence of PITS is expected. Interventional pulmonologist and thoracic surgeons might be called to deal with this possibility. Clarification of the physiopathology of PITS is needed to prevent excessive tracheal scarring following prolonged endotracheal intubation and recurrence after endoscopic and/or surgical treatment. Careful prevention, early detection and effective management of this life-threatening condition are warranted.