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Vizzardi E, Sciatti E, Bonadei I, et al. Effects of transcatheter aortic valve implantation on ascending aorta wall elastic properties: Tissue Doppler imaging and strain Doppler echocardiography study. Int J Cardiol Heart Vessel. 2014;4:198-202doi: 10.1016/j.ijchv.2014.04.003.
Vizzardi, E., Sciatti, E., Bonadei, I., D'Aloia, A., Gelsomino, S., Lorusso, R., Ettori, F., & Metra, M. (2014). Effects of transcatheter aortic valve implantation on ascending aorta wall elastic properties: Tissue Doppler imaging and strain Doppler echocardiography study. International journal of cardiology. Heart & vessels, 4198-202. https://doi.org/10.1016/j.ijchv.2014.04.003
Vizzardi, Enrico, et al. "Effects of transcatheter aortic valve implantation on ascending aorta wall elastic properties: Tissue Doppler imaging and strain Doppler echocardiography study." International journal of cardiology. Heart & vessels vol. 4 (2014): 198-202. doi: https://doi.org/10.1016/j.ijchv.2014.04.003
Vizzardi E, Sciatti E, Bonadei I, D'Aloia A, Gelsomino S, Lorusso R, Ettori F, Metra M. Effects of transcatheter aortic valve implantation on ascending aorta wall elastic properties: Tissue Doppler imaging and strain Doppler echocardiography study. Int J Cardiol Heart Vessel. 2014 Apr 26;4:198-202. doi: 10.1016/j.ijchv.2014.04.003. eCollection 2014 Sep. PMID: 29450189; PMCID: PMC5801439.
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Int J Cardiol Heart Vessel. 2014 Apr 26;4:198-202. doi: 10.1016/j.ijchv.2014.04.003. eCollection 2014 Sep.

Effects of transcatheter aortic valve implantation on ascending aorta wall elastic properties: Tissue Doppler imaging and strain Doppler echocardiography study.

International journal of cardiology. Heart & vessels

Enrico Vizzardi, Edoardo Sciatti, Ivano Bonadei, Antonio D'Aloia, Sandro Gelsomino, Roberto Lorusso, Federica Ettori, Marco Metra

Affiliations

  1. Section of Cardiovascular Diseases, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Italy.
  2. Cardiovascular Research Institute Maastricht - CARIM, Maastricht University Medical Centre, The Netherlands.
  3. Cardiac Surgery Unit, Spedali Civili of Brescia, Italy.

PMID: 29450189 PMCID: PMC5801439 DOI: 10.1016/j.ijchv.2014.04.003

Abstract

BACKGROUND: Aortic elastic properties are determinants of left ventricular function by means of ventriculo-arterial coupling and indicators of cardiovascular risk. Aortic valve stenosis surgical replacement temporary reduces aortic function damaging vasa vasorum, while transcatheter aortic valve implantation (TAVI) does not influence it in the short term. We studied aortic distensibility, stiffness, M-mode strain and tissue strain after 6 and 12 months from TAVI.

METHODS: We enrolled 15 patients with symptomatic severe aortic stenosis who underwent CoreValve prosthesis (Medtronic, Minneapolis, MN) implantation. Everyone had blood pressure measurement and echocardiography registration before TAVI and after 6 and 12 months.

RESULTS: After TAVI NYHA class (p = 0.016), peak and mean aortic valve gradients (p < 0.001 for both) improved. Aortic distensibility increased (p = 0.032 in the first 6 months, p = 0.005 in the second 6 months, and p = 0.003 from baseline to 12 months), as well as stiffness decreased (p = 0.034; 0.090; 0.001), M-mode strain and tissue strain ameliorated (p = 0.041; 0.004; 0.004; and p = 0.013; 0.002; 0.001, respectively), tissue Doppler imaging improved (S' wave: p = 0.289; 0.347; 0.018. E' wave: p = 0.018; 0.113; 0.007. A' wave: p = 0.002; 0.532; 0.001). Moreover, some left ventricular parameters improved at 6 months, such as ejection fraction (from 49 ± 16 to 57 ± 11%; p = 0.044) and diastolic interventricular septum thickness (from 14 ± 2 to 12 ± 2 mm; p = 0.010). Even systolic pulmonary artery pressure (p = 0.019) and left diastolic dysfunction grade ameliorated (p = 0.042).

CONCLUSIONS: For the first time we demonstrated that aortic elastic properties improve at 6 and 12 months after TAVI, thus influencing ventriculo-arterial coupling and ameliorating left ventricular function.

Keywords: Aorta; Distensibility; Doppler echocardiography; Stiffness; Strain; TAVI

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