Overview
A patent ductus arteriosus is the persistence post birth of a blood vessel connecting the pulmonary artery and the aorta.
Diagnosis
Signs of Patent Ductus Arteriosus
Peripheral Signs
- Peripheral cyanosis
- Collapsing pulse
- Widened pulse pressure
Central Signs
- Displaced apex beat
- Continuous murmur
- Paradoxical splitting of the second heart sound (S2): single S2 during inspiration and split S2 during expiration
- Evidence of Eisenmenger's syndrome - cyanosis, clubbing
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