Table 5

Indices of Coronary Stenosis Severity Before and After Transcatheter Aortic Valve Replacement

Pre-TAVRPost-TAVRp Value
Hyperemic indices
 Fractional flow reserve0.87 ± 0.080.85 ± 0.090.0008
 Hyperemic stenosis resistance0.34 ± 0.320.40 ± 0.320.06
Resting indices
 Instantaneous wave-free ratio0.88 ± 0.090.88 ± 0.090.94
 Basal stenosis resistance0.31 ± 0.290.32 ± 0.260.50
 Pd/Pa0.91 ± 0.290.92 ± 0.060.82
 Diastolic Pd/Pa0.88 ± 0.100.89 ± 0.090.75

Values are mean ± SD.

TAVR = transcatheter aortic valve replacement.