Cardiology - Patent Ductus Arteriosus Flashcards
1
Q
Definition
A
Persistent connection between the aorta and pulmonary artery
Normal in utero but usually closes within first 10-15 minutes of life
Left to right shunt
2
Q
Risk factors
A
Female
Prematurity
Maternal Rubella
3
Q
Signs and symptoms
A
SIGNS
Faltering growth
Continuous machinery murmur at the left sternal edge
SYMPTOMS
Shortness of breath
Difficulty feeding
Poor weight gain
Lower respiratory tract infections
4
Q
Diagnosis
A
Echo
ECG/CXR
5
Q
Management
A
- Observation for spontaneous closure
- Premature infants: Indomethacin or ibuprofen inhibits prostaglandins and stimulates closure
- Severe: Trans-catheter or surgical closure to close around 1 year old or sooner in more severe cases