Child health · UKMLA & AKT
Patent ductus arteriosus in preterm infants
A free high-yield preview for the UKMLA Applied Knowledge Test. Below are the key points to recognise patent ductus arteriosus in preterm infants — the full SA Note notes add investigations, management, complications and 10 practice questions.
Key high-yield points
- ~70% of infants born <1 kg have a PDA on day 7 of life
- ~50% of infants born <26 weeks still have a PDA at 2 months
- Spontaneous closure in ~73% born >28 weeks and ~94% with birth weight >1000 g - supports conservative approach in less premature infants
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