The American Thoracic Society has updated its 2013 guideline on childhood interstitial lung disease in children under 2 years of age. It uses the GRADE approach and focuses on genetic testing, chest imaging, lung biopsy and referral for lung transplant evaluation.
The main recommendations are: rapid and broad genetic testing in infants with the disease and respiratory failure (strong); chest CT remains an important part of the evaluation (conditional); surgical lung biopsy when a specific diagnosis is urgent and genetic testing is not feasible, timely or conclusive, to identify treatable histopathological features, or to inform prognosis (strong); referral for lung transplant evaluation for specific disorders with predictably poor outcomes (strong); and repeat chest CT to aid decisions or prognosis is suggested (conditional).
The central change is the place of genetics ahead of biopsy. Access to rapid genomic testing and paediatric lung pathology is uneven, and the abstract does not address availability in India.
- Rapid, broad genetic testing is strongly recommended for infants with interstitial lung disease and respiratory failure.
- Chest CT remains part of the diagnostic evaluation (conditional recommendation).
- Surgical lung biopsy is recommended when genetics cannot give a timely answer, or to find treatable features or inform prognosis.
- Referral for transplant evaluation is recommended for disorders with predictably poor outcomes.
- Refer early to a centre with genomic testing and paediatric lung pathology.
Why it matters
Genetic testing moves ahead of surgical biopsy as the first tool for many infants with unexplained diffuse lung disease.
Don't overread it
Our summary reflects the published abstract, and the guideline's evidence base for a rare disease is limited and mainly observational.
The statistics, in plain English
Strong recommendations in this guideline mean the panel was confident that benefits outweigh harms; conditional recommendations mean the balance depends on circumstances and values. Both types in rare diseases often rest on low-certainty evidence from small series.
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