The patient was considered to have left main bronchial stenosis caused
by PDA occlude. One week later, the child underwent arterial
catheterization and intracardiac foreign body removal. The exploratory
occluder could not be completely removed, so the pulmonary artery test
occluding umbrella was cut off and removed, and the aortic side
occluding umbrella was fixed in situ.
After the operation, the child’s cough improved without wheezing and was
discharged 3 days later. Chest CT reexamination 4 months later showed
patency of the left main bronchus without compression (Figure .3).