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Pulmonary artery sling: An overview
Muhammed Riyas K Rahmath1, Andrew Durward2
1Pediatric cardiology, Pediatrics, Hamad Medical Corporation, Doha, Qatar.
Insights
Pulmonary artery sling, a rare vascular anomaly, can cause critical airway obstruction in infants due to associated tracheal stenosis. Early diagnosis and surgical repair, including slide tracheoplasty, lead to excellent long-term outcomes for this congenital condition.
Area of Science:
- Pediatric Cardiology
- Thoracic Surgery
- Medical Genetics
Background:
- Pulmonary artery sling is a rare congenital vascular anomaly.
- It often presents with tracheobronchial compression and tracheal stenosis in neonates and infants.
- This can lead to critical airway obstruction, especially with long-segment narrowing and complete tracheal rings.
Approach:
- This review synthesizes current knowledge on the embryology of pulmonary artery sling.
- It details diagnostic workup, including essential airway investigations.
- Management strategies, focusing on surgical repair, are discussed.
Key Points:
- Early and accurate diagnosis of this cardiac vascular malformation is crucial.
- Comprehensive evaluation of airway involvement guides surgical planning.
- Surgical interventions like slide tracheoplasty and left pulmonary artery reimplantation are key to relieving obstruction.
Conclusions:
- Pulmonary artery sling is a rare but significant cause of congenital airway obstruction.
- Prompt diagnosis and surgical management can result in excellent long-term outcomes.
- Understanding the embryology and diagnostic nuances is vital for effective treatment.
Abstract:
Pulmonary artery sling is a rare childhood vascular tracheobronchial compression syndrome that is frequently associated with tracheal stenosis. Consequently, neonates or infants may present with critical airway obstruction if there is long segment airway narrowing and complete rings. Rapid diagnosis of this cardiac vascular malformation and evaluation of the extent and severity of airway involvement is essential to plan surgery, typically a slide tracheoplasty to relieve critical airway obstruction. Long term outcome can be excellent following surgical repair of the stenosed airway and reimplantation of the left pulmonary artery. In this review we focus on the embryology, diagnostic workup, airway investigations and management for this rare but challenging congenital condition.
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