Letter by Fournier et al Regarding Article, “Functional Assessment of Coronary Artery Disease in Patients Undergoing Transcatheter Aortic Valve Implantation: Influence of Pressure Overload on the Evaluation of Lesions Severity”
Fournier S, Harbaoui B, Muller O.Circ Cardiovasc Interv. 2017 Apr;10(4). We read with great interest the recent publication by Pesarini et al regarding the functional assessment of coronary artery disease in patients undergoing transcatheter aortic valve implantation (TAVI). The authors report that angiographically intermediate lesions may become functionally significant after TAVI, whereas variation in the fractional flow reserve (FFR) would not affect the diagnostic decision based on the 0.8 cutoff in patients at the extremes of the quantitative coronary angiography spectrum (unobstructed arteries or severe lesions). The authors should be commended for their work in a field where data are sparse; however, we think that a few significant points must be highlighted.