hihopes
Forum Newbie
Topics: 1
Posts: 4
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does anyone know whether coarctation of the aorta in patients with turner's syndrome is pre or post ductal. goljan says one thing, webpath says another. thanks in advance
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| sturge_weber
Forum Guru
Topics: 77
Posts: 1,042
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pre ductal....
the one found in adults is post
i think this is right
correct me if wrong guys
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| knight
Forum Senior
Topics: 16
Posts: 46
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agreed
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| Doc2378
Forum Guru
Topics: 46
Posts: 688
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___________________
Courage does not always ROAR. Sometimes courage is the quiet voice at the end of the day saying, "I will try again tomorrow" - Mary Anne Radmacher
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| jonathon
Forum Senior
Topics: 25
Posts: 62
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Its kinda difficult to understand. In preductal coarctation (narrowing before the opening of the ductus arteriosus) blood flows freely from the right ventricle through the ductus arteriosus and out to the aorta distal to the obstruction. As a result there are no stresses to the body to develop collateral circulation. This is why close to 85% of infants don't make it beyond infancy.
In post-ductal since the ductus arteriosus comes off before the narrowing the blood is forced against the narrow lumen. this stresses the body and causes the development of collateral circulation. As a result when the ductus arteriosus closes of life is sustained. Well that's it in a nutshell.
The answer however is preductal, which is the opposite of what you would expect. well guess this fact will just have to be memorised.Sorry for the long note but just thought i would explain the difference between the 2 types.
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