Bela
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Pt with machine like murmur. Diagnosed with PDA. What is the direction of blood at the site of abnormality? I mean, from where to where!
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| Gul
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from aorta to pulmonary artery
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| bluestar
Forum Guru
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and then after pulmonary hypertension is built up, change to the oposite direction: from pulmonary A to aorta -->cyanosis?
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| Bela
Forum Guru
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Actually that's the answer: Aorta -->Pulmonary A.
However, I read somewhere that in PDA, there are 3 phases we have to remember:
In fetal life :arrow: Right --> Left shunting (pulm A-->aorta)
In neonatal life :arrow: Left-->Right shunting (aorta-->pulm A). No cyanosis.
Later in life :arrow: Eisenmenger's: Right-->Left shunting (pulm A-->Aorta)-->late cyanosis
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