Patent ductus arteriosus Flashcards
1
Q
What is it?
A
CHD
acyanotic
connection between pulmonary trunk and descending aorta
ductus arteriosus closes in first breaths increasing pulmonary flow and enhancing prostaglandins clearance
2
Q
common in who
A
premature babies, born at high altitude or maternal rubella infection in the first trimester
3
Q
features
A
left subclavicular thrill
continuous ‘machinery’ murmur
large volume, bounding, collapsing pulse
wide pulse pressure
heaving apex beat
4
Q
Mx
A
- indomethacin or ibuprofen
5
Q
Mx if associated with another congenital heart defect
A
surgery is possible
prostaglandin E1 is useful to keep the duct open until surgical repair
