> I have read about Marfans syndrome and was wondering how it is
> diagnosed?
It is diagnosed clinically by history and physicial examination findings.
The diagnosis can sometimes be confirmed by genetic testing.
> DOes the fact that i have had a "clean" echocardiogram mean
> I dont have it?
A truly normal echocardiogram with normal aortic root size and normal competent valves makes the diagnosis less likely.
> I am 6 feet tall and have some of the traits such as
> cold hands and feet and nearsigtedness.
Such traits are not specific for Marfan syndrome.
> I think I have long arms too
> but not sure.
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> disection due to my constant running? (And the subsequest rise in
> blood pressure?
Concern about increased risk of aortic dissection would not be raised until you are diagnosed with Marfan syndrome and there is evidence of aortic dilation (i.e. aneurym).
Hope the above information helps you.
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