TY - JOUR
T1 - Residual pressure gradient across the implanted stent
T2 - An important factor of post-PCI physiological results
AU - Kawase, Yoshiaki
AU - Kawasaki, Masanori
AU - Kikuchi, Jun
AU - Hirata, Tetsuo
AU - Okamoto, Syuuichi
AU - Tanigaki, Toru
AU - Omori, Hiroyuki
AU - Ota, Hideaki
AU - Okubo, Munenori
AU - Kamiya, Hiroki
AU - Hirakawa, Akihiro
AU - Matsuo, Hitoshi
N1 - Publisher Copyright:
© 2017 Japanese College of Cardiology
PY - 2018/5
Y1 - 2018/5
N2 - Background: Instantaneous wave-free ratio (iFR) has the potential to improve the accuracy of the prediction of the physiological result of percutaneous coronary intervention (PCI). The aim of this study was to evaluate the accuracy of iFR to predict the final physiological results following PCI, and investigate the factors for failed prediction. Methods: In 73 lesions, iFR pullback recordings were measured and comparisons were made between the predicted improvement following PCI and the observed result. Results: iFR predicted–observed difference was 0.036 ± 0.037. Multivariate analysis showed residual iFR pressure gradient across the implanted stent (odds ratio, 2.329; 95% confidence interval, 1.408–3.853; p = 0.0010) as an independent risk factor for error in iFR prediction. Conclusions: iFR predicted–observed difference was 0.036 ± 0.037. Residual in-stent iFR pressure gradient following PCI is the only independent risk factor for failed prediction.
AB - Background: Instantaneous wave-free ratio (iFR) has the potential to improve the accuracy of the prediction of the physiological result of percutaneous coronary intervention (PCI). The aim of this study was to evaluate the accuracy of iFR to predict the final physiological results following PCI, and investigate the factors for failed prediction. Methods: In 73 lesions, iFR pullback recordings were measured and comparisons were made between the predicted improvement following PCI and the observed result. Results: iFR predicted–observed difference was 0.036 ± 0.037. Multivariate analysis showed residual iFR pressure gradient across the implanted stent (odds ratio, 2.329; 95% confidence interval, 1.408–3.853; p = 0.0010) as an independent risk factor for error in iFR prediction. Conclusions: iFR predicted–observed difference was 0.036 ± 0.037. Residual in-stent iFR pressure gradient following PCI is the only independent risk factor for failed prediction.
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U2 - 10.1016/j.jjcc.2017.10.022
DO - 10.1016/j.jjcc.2017.10.022
M3 - Article
C2 - 29203079
AN - SCOPUS:85035327949
SN - 0914-5087
VL - 71
SP - 458
EP - 463
JO - Journal of cardiology
JF - Journal of cardiology
IS - 5
ER -