Percutaneous closure of a patent arterial duct in a newborn.

We report a successful percutaneous neonatal closure of haemodynamically significant patent arterial duct. The neonate was suffering multiorgan failure, and had complete atrioventricular block. Closure of the patent arterial duct, either with surgery or inhibitors of cyclooxygenase, was contraindicated. We inserted the Amplatzer Duct Occluder II, showing that percutaneous closure of a patent arterial duct is now feasible in critically ill neonates.