[Patency of ductus arteriosus in the premature newborn infant: diagnosis, complications, treatment].

The authors consider the problem of patency of ductus arteriosus (P.D.A.) in pre-term infants. On the basis of their own experience and reviewing international literature they discuss about mechanisms maintaining open ductus, incidence, methods of diagnosis, clinical findings and indomethacin therapy. Finally current indications for indomethacin use are discussed.