Reference Chart Derived From Post–Stent-Implantation Intravascular Ultrasound Predictors of 6-Month Expected Restenosis on Quantitative Coronary Angiography

We found that 2 Intravascular ultrasound variables were strong predictors of 6-month restenosis

P. J. de Feyter; P. Kay; C. Disco; P. W. Serruys

2012

Scholarcy highlights

  • Intravascular ultrasound– guided stent implantation and the availability of a reference chart to predict the expected in-stent restenosis rate based on operator-dependent IVUS parameters may interactively facilitate optimal stent placement
  • The expected 6-month in-stent restenosis rate after stent implantation for short lesions in relatively large vessels can be predicted by use of in-stent minimal area and stent length, both of which can be read from a simple reference chart.
  • Intracoronary stent implantation has unequivocally been shown to reduce the frequency of 6-month in-stent restenosis in focal lesions in relatively large coronary vessels
  • Online knowledge of an expected restenosis rate based on IVUS-determined post–stent-implantation lumen dimensions and stent length obtained while the procedure is being performed may serve as an extra stimulus to attempt to achieve the best possible result of stent implantation, whereas IVUS guidance may reduce the undue risks of dissection or vessel rupture
  • We found that 2 IVUS variables were strong predictors of 6-month restenosis
  • We constructed a reference chart that, by use of the IVUSdetermined length of the implanted stent and the minimum in-stent area, predicted the 6-month quantitative coronary angiography restenosis rate. This reference chart is only applicable for stent implantation in short lesions in relatively large vessels
  • The reliability of this reference chart must be confirmed in a prospective study

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