De Wolf et al. Emergency ventilation with the Ventrain_through an airway exchange catheter in a porcine model of complete upper airway obstruction. Can J Anaesth. 2017 Jan;64(1):37-44

Dr. De Wolf and colleagues demonstrated that Ventrain provided rapid reoxygenation and effective
ventilation through a 100 cm long airway exchange catheter (ID 3 mm) in severe hypoxic pigs with an
obstructed airway. This study clearly indicates potential clinical applicability and usefulness of Ventrain,
not only in combination with short, transtracheal cannulas but also with long small lumen tubes/catheters
when (re)intubation is difficult or has failed.