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An event is serious (based on the ICH definition) when the patient outcome is:

  • * death

  • * life-threatening

  • * hospitalisation

  • * disability

  • * congenital anomaly

  • * other medically important event

In a retrospective, non-randomised, uncontrolled study, comprising 11 patients, who underwent bronchotracheal stenting management by rigid bronchoscopy under extracorporeal membrane oxygenation (ECMO) support at a hospital in Belgium between January 2009 and December 2019 in Belgium, one patient [age and sex not stated] was described; the patient developed tracheal bleeding following anticoagulant therapy with IV bolus infusion of heparin [unfractionated heparin; dosage and duration of treatment to reaction onset not stated]. The patient was treated with transfusion of 2 units of red blood cells [outcome not stated].