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| {{SI}}
| | #Redirect [[Coronary collaterals]] |
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| __NOTOC__
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| {{CMG}}
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| ==Collateral Circulation assessed visually using the following grading system==
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| ===Grade 0===
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| [[Grade 0 Collaterals | No collaterals present]]. Angiography fails to reveal evidence of collateral vessels. | |
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| ===Grade 1 (or partial)===
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| [[Grade 1 (partial) Collaterals | Minimal collaterals present]]. Evidence of minimal to partial filling of the recipient branch epicardial arteries/infarct region. It is not necessary for one to see the branches connect directly to the major epicardial artery.
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| ===Grade 2 (or complete)===
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| [[Grade 2 (complete) Collaterals | Well-developed collaterals]]. Evidence of collateral circulation with near complete to complete filling of the recipient major epicardial artery/infarct region.
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| ===Grade 3 (myocardial)===
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| [[Grade 3 (myocardial) Collaterals | Filling of the myocardium by collaterals]]. If the collaterals are not filling any visible arterial branch, but are only participating in the perfusion of the myocardium.
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| ==References==
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| {{WikiDoc Help Menu}}
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| {{WikiDoc Sources}}
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| [[Category:Cardiology]]
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| [[Category:Angiographic Definitions]]
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