Bronchial compression by dilated pulmonary artery. Surgical treatment

Area of Science:

• Pediatric Cardiology
• Thoracic Surgery
• Congenital Heart Disease

Background:

• Bronchial compression is a rare but serious postoperative complication in infants undergoing complex congenital heart defect repair.
• A dilated left pulmonary artery (DLPA) can lead to extrinsic airway compression, particularly in the setting of specific cardiac anomalies and surgical procedures.

Observation:

• Two infants experienced significant postoperative morbidity due to bronchial compression caused by a DLPA.
• The first infant had undergone a Mustard operation for transposition of the great arteries with a restrictive ventricular septal defect and pulmonary stenosis.
• The second infant had a correction for tetralogy of Fallot with absent pulmonary valve.

Findings:

• In both cases, the bronchial compression was successfully managed by surgical division of the DLPA.
• A vascular conduit was used to reconstruct the pulmonary artery continuity after division.
• This intervention effectively relieved the airway obstruction and improved the postoperative course.

Implications:

• Division and reconstruction of the DLPA is a viable and effective surgical strategy for managing DLPA-induced bronchial compression.
• This approach offers a solution for a challenging complication, potentially improving outcomes for infants with specific congenital heart conditions.
• Further investigation into the long-term effects and optimal conduit materials may be warranted.