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Title: Impact of low-profile sheaths on vascular complications during transfemoral transcatheter aortic valve replacement.
Author: Barbanti M, Binder RK, Freeman M, Wood DA, Leipsic J, Cheung A, Ye J, Tan J, Toggweiler S, Yang TH, Dvir D, Maryniak K, Lauck S, Webb JG.
Journal: EuroIntervention; 2013 Dec; 9(8):929-35. PubMed ID: 24035884.
Abstract:
AIMS: We sought to assess the impact of low-profile sheaths on vascular complications during transfemoral transcatheter aortic valve replacement (TAVR). METHODS AND RESULTS: This retrospective single-study population comprised a total of 375 consecutive patients with severe aortic stenosis who underwent transfemoral TAVR from January 2008 to November 2012. Of these, 204 (54.4%) underwent TAVR using 14-18 Fr sheaths (low-profile sheath [LPS] group), and 171 (45.6%) using 19-24 Fr sheaths (high-profile sheath [HPS] group). Vascular complications and bleeding were defined according to the VARC-2 definitions. Lower-profile sheaths were associated with a lower incidence of major vascular complications (0.5% vs. 10.5%, p<0.001), as well as a lower rate of life-threatening or major bleeding (3.4% vs. 8.3%, p=0.038). Finally, at multivariable analysis, sheath size ≥19 Fr (adjusted odds ratio [OR]: 3.06, 95% confidence interval [CI]: 1.20-7.83; p=0.019) and a sheath external diameter/minimal femoral artery diameter ratio ≥1.05 (adjusted OR: 5.79, 95% CI: 1.29-15.92, p=0.022) were found to be the only independent predictors of major and minor vascular complications. CONCLUSIONS: The introduction of lower-profile sheaths has dramatically reduced the incidence of vascular complications after transfemoral TAVR, thus enhancing the safety of the procedure.

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