Key result
Instantaneous wave-free ratio (iFR) pullback accurately predicted post-PCI iFR, with a small mean difference between expected and observed iFR (0.016 ± 0.004; r = 0.97, p < 0.001).
Why the study?
Does pre-angioplasty iFR pullback accurately predict post-PCI hemodynamic outcomes in coronary arteries with tandem or diffuse disease?
Population
32 coronary arteries with tandem and/or diffusely diseased vessels undergoing percutaneous coronary…
Comparison
Motorized pullback of a pressure guidewire with… vs Observed iFR post-PCI (iFRobs)
Design
Cohort
Follow-up
Immediate post-PCI
Authors
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May guide PCI planning in tandem lesions; hypothesis-generating for outcome benefits in randomized trials.
Observational (n=32)
Does pre-angioplasty iFR pullback accurately predict post-PCI hemodynamic outcomes in coronary arteries with tandem or diffuse disease?
Mean Difference: 0.016
p-value: p=<0.001
Pre-angioplasty iFR pullback accurately predicts post-PCI hemodynamic outcomes, facilitating targeted stenting strategies in complex coronary disease.
Nijjer et al. (2014) conducted an observational in Coronary artery disease with tandem and/or diffusely diseased vessels (n=32). Instantaneous wave-free ratio (iFR) pullback was evaluated on Difference between expected iFR (iFRexp) and observed iFR post-PCI (iFRobs) (MD 0.016, p=<0.001). Instantaneous wave-free ratio (iFR) pullback accurately predicted post-PCI iFR, with a small mean difference between expected and observed iFR (0.016 ± 0.004; r = 0.97, p < 0.001).
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