Standardized Measurement of Femoral Artery Depth by Computed Tomography to Predict Vascular Complications After Transcatheter Aortic Valve Implantation

Vascular complications (VCs) are difficult to predict and remain an important issue after transfemoral (TF) transcatheter aortic valve implantation (TAVI) although their incidence has decreased with size reduction of introducers. We aimed evaluate a standardized measurement femoral artery depth (FAD) using computed tomography (CT) VCs TAVI. performed retrospective study 679 TF TAVI patients. evaluated CT method measure FAD immediately above the bifurcation. Sheath-to-femoral-artery ratio (SFAR), calcification, tortuosity were also evaluated. defined by Valve Academic Research Consortium (VARC)-2. Receiver operating characteristic (ROC) curves used major need for stent-graft. The median values SFAR 49.0 (36.2 66.7) mm 0.95 (0.81 1.18), respectively. Major occurred in 37 (5.4%) patients stent-graft was required 49 (7.1%) predicted [0.61 (0.51 0.70), p = 0.04] but not [0.52 (0.40 0.63), 0.76]. In contrast, did [0.53 (0.43 0.62), 0.61] [0.70 (0.58 0.81), 0.001]. Calcification neither nor conclusion, results our suggest that measurements provide additional information