PCI: classification of the lesion: Difference between revisions
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
{{SI}} | {{SI}} | ||
{{CMG}} | {{CMG}} | ||
==Overview== | |||
According to the Abrupt Vessel Closure - AHA Task Force Definition, as modified by Ellis et al., coronary [[lesion]] complexity is graded as A, B1, B2, and C. | According to the Abrupt Vessel Closure - AHA Task Force Definition, as modified by Ellis et al., coronary [[lesion]] complexity is graded as A, B1, B2, and C. | ||
==Type A== | |||
<10mm, discrete, concentric readily accessible, <45 degree angle smooth contour, little or no [[calcification]], less than totally occluded, not ostial, no major side branch involvement, absence of [[thrombus]]. | <10mm, discrete, concentric readily accessible, <45 degree angle smooth contour, little or no [[calcification]], less than totally occluded, not ostial, no major side branch involvement, absence of [[thrombus]]. | ||
==Type B== | |||
One of the following characteristics: | One of the following characteristics: | ||
10-20mm, eccentric, moderate tortuosity or proximal segment, irregular contour, presence of any [[thrombus]] grade, moderate or heavy [[calcification]], total [[occlusion]] <3 months old, ostial [[lesion]] or bifurcation [[lesion]] requiring two guide wires. | 10-20mm, eccentric, moderate tortuosity or proximal segment, irregular contour, presence of any [[thrombus]] grade, moderate or heavy [[calcification]], total [[occlusion]] <3 months old, ostial [[lesion]] or bifurcation [[lesion]] requiring two guide wires. | ||
==Type B2== | |||
Two or more of the following characteristics: | Two or more of the following characteristics: | ||
10-20mm, eccentric, moderate [[tortuosity]] or proximal segment, irregular contour, presence of any [[thrombus]] grade, moderate or heavy [[calcification]], total [[occlusion]] <3 months old, ostial [[lesion]] or bifurcation [[lesion]] requiring two guide wires. | 10-20mm, eccentric, moderate [[tortuosity]] or proximal segment, irregular contour, presence of any [[thrombus]] grade, moderate or heavy [[calcification]], total [[occlusion]] <3 months old, ostial [[lesion]] or bifurcation [[lesion]] requiring two guide wires. | ||
==Type== | |||
>20 mm diffuse, excessive [[tortuosity]] of proximal segment, total [[occlusion]] >3 months old and/or bridging [[collaterals]] inability to protect major side branches, degenerated [[Saphenous vein graft|vein graft]] with friable [[lesions]]. | >20 mm diffuse, excessive [[tortuosity]] of proximal segment, total [[occlusion]] >3 months old and/or bridging [[collaterals]] inability to protect major side branches, degenerated [[Saphenous vein graft|vein graft]] with friable [[lesions]]. | ||
{{Circulatory system pathology}} | {{Circulatory system pathology}} | ||
[[Category:Cardiology]] | [[Category:Cardiology]] | ||
[[Category:Up-To-Date]] | |||
[[Category: Up-To-Date Cardiology]] | |||
{{WikiDoc Help Menu}} | {{WikiDoc Help Menu}} | ||
{{WikiDoc Sources}} | {{WikiDoc Sources}} | ||
Revision as of 11:05, 25 October 2011
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
According to the Abrupt Vessel Closure - AHA Task Force Definition, as modified by Ellis et al., coronary lesion complexity is graded as A, B1, B2, and C.
Type A
<10mm, discrete, concentric readily accessible, <45 degree angle smooth contour, little or no calcification, less than totally occluded, not ostial, no major side branch involvement, absence of thrombus.
Type B
One of the following characteristics: 10-20mm, eccentric, moderate tortuosity or proximal segment, irregular contour, presence of any thrombus grade, moderate or heavy calcification, total occlusion <3 months old, ostial lesion or bifurcation lesion requiring two guide wires.
Type B2
Two or more of the following characteristics: 10-20mm, eccentric, moderate tortuosity or proximal segment, irregular contour, presence of any thrombus grade, moderate or heavy calcification, total occlusion <3 months old, ostial lesion or bifurcation lesion requiring two guide wires.
Type
>20 mm diffuse, excessive tortuosity of proximal segment, total occlusion >3 months old and/or bridging collaterals inability to protect major side branches, degenerated vein graft with friable lesions.