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

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2
Q

Risk factors

A

Female
Prematurity
Maternal Rubella

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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

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4
Q

Diagnosis

A

Echo
ECG/CXR

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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
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