Left main bronchus obstruction after patent ductus arteriosus ligation: an unusual complication.

This report discusses a premature complex newborn with persistent pulmonary difficulties following the clipping of the PDA. Bronchoscopy was critical in revealing a metallic clip obstructing the bronchus. Thoracothomy revealed that the clip had been placed across the bronchus. This case illustrates the importance of bronchoscopy in the face of persistent unexplained pulmonary symptoms as well as having clear intraoperative exposure of the anatomy in this region to assure accurate placement of PDA metallic clips.