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namf
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06/30/04 - 05:37 AM       #1

Hi! Does anyone remember the anatomy and pathology of notching in the ribs? I was just looking at coarctation in Turner's and I thought I remembered some connection..? Thanks alot!

mdwannabe
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06/30/04 - 06:18 AM       #2

intercostal areteries pulsations and internal thoracic pulsations...due to increase in pressure, since the coark lets less blood through further. Since bode is constantly turning over, and in babies it is not completely ossified, the pulsation create the notches.
Correlate the anatomical position of ITA and Intercotals to the notchings.

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digitaldoc

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06/30/04 - 07:01 AM       #3

Yes and the notching is enhanced in Coarctation of Aorta [Adult-type] for the same reason ...

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namf
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06/30/04 - 07:08 AM       #4

Thanks for the quick reply, mdwannabe! You or anyone else name other hi-yield USMLE conditions assoc with rib notching??

thanks again

namf
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06/30/04 - 07:33 AM       #5

So how about aortic stenosis--it would seem to increase pressure like coarctation. Any ideas if it creates rib notching--& if this is significant (read:USMLE) material!? Thank you~

digitaldoc

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06/30/04 - 09:09 AM       #6

I dont think it does...notching is enhanced by increased pulsatile pressure...in aortic stenosis this won't happen ...

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Idiopathic
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06/30/04 - 12:14 PM       #7

"namf" wrote:
So how about aortic stenosis--it would seem to increase pressure like coarctation. Any ideas if it creates rib notching--& if this is significant (read:USMLE) material!? Thank you~


The increase in pressure needs to arise distal to the intercostal arteries for notching to occur. This is why it is noted more in postductal coarctation rather than preductal. In aortic stehosis, aortic pressure is actually decreased, and so there will be no notching.

namf
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06/30/04 - 02:31 PM       #8

Thanks Idiopathic! :icon_joker: :icon_thumb:









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