PCI in the long lesion: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
|||
Line 1: | Line 1: | ||
{{SI}} | {{SI}} | ||
{{CMG}} | {{CMG}} | ||
'''Key Words and Synonyms:''' diffuse disease, extensive lesion, long lesion | |||
==Overview== | ==Overview== | ||
Resistance to coronary blood flow in a coronary vessel is not only due to the severity of a focal stenosis, but also to the length of that stenosis. Long lesions that are moderate in nature may therefore cause a significant resistance to flow. | A diffuse lesion is defined as a coronary artery lesion of greater than 20 mm in length. Resistance to coronary blood flow in a coronary vessel is not only due to the severity of a focal stenosis, but also to the length of that stenosis. Long lesions that are moderate in nature may therefore cause a significant resistance to flow. | ||
==Treatment== | ==Treatment== |
Revision as of 14:24, 25 October 2011
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Key Words and Synonyms: diffuse disease, extensive lesion, long lesion
Overview
A diffuse lesion is defined as a coronary artery lesion of greater than 20 mm in length. Resistance to coronary blood flow in a coronary vessel is not only due to the severity of a focal stenosis, but also to the length of that stenosis. Long lesions that are moderate in nature may therefore cause a significant resistance to flow.
Treatment
- A single stent that is very long should be placed to minimize stent overlap which is associated with greater risk of stent thrombosis.
- If a bare metal stent is placed, it should be remembered that the risk of restenosis proportional to the length of the bare-metal stent placed in the segment.
- There some data to suggest that glycoprotein 2b3a inhibition is of greater use in longer lesions given the greater extent of vessel injury.
Complications
Long lesions are associated with a greater plaque burden and as such are likewise associated with a greater risk of no reflow. Longer lesions are also associated with an increased risk of side branch occlusion.