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).