CV ASC Registry Education-Seq#9146 (Significant Coronary Artery Dissection)

Video Transcription

A dissection is defined as the appearance of contrast materials outside of the expected luminal dimensions of the target vessel and extending longitudinally beyond the length  of the lesion. Because dissections are a frequent occurrence during PCI, the intent of this data element  is to capture the occurrence of a significant dissection as defined by the data definition N1 that is witnessed to occur during the current PCI procedure.  Typically, dissections that are not flow-limiting are considered type A or B and are not captured.  However, significant dissections are captured if they are type C dissections in the presence of ischemia or type D through F dissections, all of which are further described as type  C, which is persisting contrast medium extravasations, type D, spiral-filling defect with delayed  but complete distal flow, type E, persistent filling defect with delayed antegrade flow, or type F, filling defect with impaired flow and total occlusion.

Video Summary

A dissection in PCI refers to contrast materials extending beyond the vessel's expected dimensions, occurring frequently during procedures. The data element focuses on capturing significant dissections witnessed during PCI, excluding non-flow-limiting type A or B dissections. Type C to F dissections, involving ischemia or flow impairment, are captured. Type C involves persisting contrast medium extravasations, Type D features spiral-filling defect with complete distal flow, Type E has persistent filling defect with delayed antegrade flow, and Type F exhibits filling defect with impaired flow and total occlusion.

Keywords

PCI dissection

contrast materials

vessel dimensions

flow impairment

contrast extravasations