# Case Report: Surgical correction of pulmonary artery sling causing tracheal obstruction in infancy: rapid and complete recovery

## TL;DR

A rare birth defect causing tracheal blockage in an infant was successfully corrected through surgery, leading to a quick recovery.

## Contribution

This case report demonstrates successful surgical correction of pulmonary artery sling with rapid postoperative recovery in infancy.

## Key findings

- Surgical transection and reimplantation of the left pulmonary artery relieved tracheal compression.
- The infant showed rapid and complete recovery after the procedure.
- The approach successfully resolved airway obstruction and related respiratory symptoms.

## Abstract

Pulmonary artery sling (PAS) is an uncommon congenital anomaly in which the left pulmonary artery (LPA) originates abnormally from the posterior aspect of the right pulmonary artery (RPA). The LPA then traverses between the trachea and esophagus, resulting in compression of the lower trachea. This compression can lead to respiratory symptoms, including wheezing and stridor, and in some cases, airway obstruction. In addition, bronchial compression—commonly affecting the right bronchus—can result in air trapping, pneumonia, and atelectasis. In this report, we present postoperative rapid relief of a symptomatic case in which LPA transection and reimplantation to the main pulmonary artery were performed successfully on cardiopulmonary bypass.