Preductal/Infantile type of Coarctation of the Aorta - USMLE Forums
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Old 02-07-2013
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Heart Preductal/Infantile type of Coarctation of the Aorta

I need help to clarify this concept…

Hypertension or Hypotension in the upper extremities for Preductal/Infantile type of Coarctation of the Aorta?

I read in my notes + Kaplan

Preductal/Infantile type of Coarctation of the Aorta
1. Hypertension on the upper extremity (bc the blood proximal to the aorta will be diverted to the branches of the aorta; therefore, the upper limb will get more blood = more blood pressure = hypertension of the upper extremity.

HOWERVER, in Pathoma…

Preductal/Infantile type of Coarctation of the Aorta
1. Hypotension on the upper extremitity (bc most blood is diverting to the lower extremity via diverting blood from the PDA to distal the coarctation of aorta)

So, which one is it? Hypertension or Hypotension in the upper extremities for Preductal/Infantile type of Coarctation of the Aorta?

Thank you.
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Old 02-07-2013
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think it depends more on whether the coarctation is pre- aortic branches or post aortic branches...
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Old 02-07-2013
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Quote:
Originally Posted by BritneySpears View Post
think it depends more on whether the coarctation is pre- aortic branches or post aortic branches...

Yes. And, I'm asking for the preductal one.

Is there hypertension or Hypotension in the upper extremities for Preductal/Infantile type of Coarctation of the Aorta?

Thanks!
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Old 02-08-2013
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Quote:
Originally Posted by luschka View Post
Yes. And, I'm asking for the preductal one.

Is there hypertension or Hypotension in the upper extremities for Preductal/Infantile type of Coarctation of the Aorta?

Thanks!

It's hypertension. That's why you check the femoral pulses, which is weak; indicating hyoptension in lower extremities. You will also see blue/purplish color in lower extrimities and pinkish on trunk and upper extrimities as well.
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Old 02-15-2013
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Thumbs Up Coarctation of aorta

Quote:
Originally Posted by luschka View Post
I need help to clarify this concept…

Hypertension or Hypotension in the upper extremities for Preductal/Infantile type of Coarctation of the Aorta?

I read in my notes + Kaplan

Preductal/Infantile type of Coarctation of the Aorta
1. Hypertension on the upper extremity (bc the blood proximal to the aorta will be diverted to the branches of the aorta; therefore, the upper limb will get more blood = more blood pressure = hypertension of the upper extremity.

HOWERVER, in Pathoma…
Preductal/Infantile type of Coarctation of the Aorta
1. Hypotension on the upper extremitity (in the upper extremities for Preductal/Infantile type of Coarctation of the Aorta?

Thank you.
low
Hi,

High BP in the Upper ext. and low BP in the low ext. But if the COA is before the Left Subclavian artery the BP in the left upper ext is also low.

fr. jerome
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