Mas-Peiro S, et al. - In 70 patients undergoing transcatheter aortic valve replacement (TAVR), researchers assessed the significance of post/preprocedural aortic regurgitation index (ARI) ratio as a marker for more-than-mild aortic regurgitation (AR) post-procedure, as well as for indicating the requirement for corrective measures, provided that the implantation depth was acceptable. They calculated ARI ratio in participants, and used angiographically assessed AR severity to determine corrective measures intraprocedurally. They assessed the link of such decisions to ARI ratios on the basis of a recently proposed threshold (ARI ratio < 0.6). They also evaluated ARI ratios in corrected vs non-corrected patients and precorrection vs post-correction values. Findings revealed an intimate association between ARI ratio and intraprocedural decisions to perform corrective measures based on angiography. For residual AR and for the need for corrective measures, the possible utility of routine use of intraprocedural ARI ratio was suggested as a complementary quantitative marker.