Pulmonary artery pathologies in Alagille syndrome: a meta-analysis

Area of Science:

• Cardiology
• Genetics
• Pediatric Medicine

Background:

• Alagille syndrome is an autosomal dominant disorder caused by JAG1 mutations, affecting multiple organs.
• Pulmonary artery stenosis is a significant complication in Alagille syndrome, requiring careful management.
• Understanding clinical features, management, and outcomes is crucial for patient care.

Purpose of the Study:

• To investigate the clinical features, management strategies, and outcomes of pulmonary artery stenosis in Alagille syndrome.
• To analyze data from a comprehensive literature review to inform treatment decisions.
• To compare the effectiveness of surgical versus interventional treatments for pulmonary artery stenosis in this population.

Main Methods:

• A systematic literature retrieval was conducted, adhering to PRISMA guidelines.
• Data from 38 articles, encompassing 401 patients with Alagille syndrome and pulmonary artery stenosis, were analyzed.
• Pertinent variables related to pulmonary artery stenosis were comprehensively evaluated.

Main Results:

• Pulmonary artery pathologies, particularly severe stenosis, necessitate surgical or interventional treatment.
• Both surgical and interventional treatments effectively reduced the right ventricular to left ventricular pressure ratio by 25%.
• No significant differences were observed in recovery, reintervention, or mortality rates between the two treatment groups.

Conclusions:

• Pulmonary artery stenosis in Alagille syndrome warrants timely intervention, either surgical or transcatheter.
• Transcatheter treatment is advantageous due to its less invasive nature.
• Surgical options, including concurrent intracardiac defect repair, are viable for managing pulmonary artery stenosis.