True statement about ductus aeriosus is:
IMPOANT POINTS ABOUT DUCTUS AERIOSUS: - Physiological closure: occurs almost immediately after bih by contraction of muscular wall - Anatomic closure: occurs by proliferation of intima in 10-21 days after bih - After obliteration, it forms ligamentum aeriosum. - Murmur due to PDA - Continuous machinery murmur. - Ductus aeriosus is kept open with the help of prostaglandins in ductus dependent conditions Note : Prostaglandin inhibitors are used to close the ductus aeriosus. Intravenous (IV) indomethacin or ibuprofen is used to treat patent ductus aeriosus (PDA) in premature infants.
It undergoes anatomic closure within 24 hours of bih
It connects aoa with pulmonary vein
It is induced to close by high levels of prostaglandins
May cause a machinery murmur by its patency
Acyanotic congenital hea diseases