Coronary artery dissection - NHLBI classification (The National Heart, Lung and Blood Institute)
This classification divides dissection of coronary artery into six types based on their appearance on coronary angiography.
| Type | Description |
|---|---|
| Type A | minor radiolucent areas in the lumen without impairment of flow or persistant dye staining after contrast runoff |
| Type B | luminal flap that is radiolucent and runs parallel to the vessel wall with contrast injection but without impairment of flow or persistant dye staining after contrast runoff |
| Type C | contrast appears outside of the vessel lumen as an "extraluminal cap", the staining appears even after contrast clears off the lumen |
| Type D | spiral radiolucent luminal filling defects, often persistent staining after contast clears from the vessel |
| Type E | new and persistent filling defects in the vessel lumen |
| Type F | lesions that progress to impaired flow or total occlusion |
References:
1. Rogers JH, Lasala JM. Coronary artery dissection and perforation complicating percutaneous coronary intervention. J Invasive Cardiol. 2004 Sep;16(9):493–9.
2. Eshtehardi P, Adorjan P, Togni M, Tevaearai H, Vogel R, Seiler C, et al. Iatrogenic left main coronary artery dissection: incidence, classification, management, and long-term follow-up. Am. Heart J. 2010 Jun;159(6):1147–53.
Updated 14/8/2013 11:09 by Lambert