Background
Indications for transcatheter aortic valve implantation (TAVI) in aortic stenosis
are expanding and the life expectancy of patients following TAVI is increasing. Determining
the long-term durability of TAVI valves is therefore important. Rates of long-term
(≥5 years) structural valve deterioration (SVD) vary widely and there are currently
no comparable data from Australia. The aim herein was to determine the incidence of
haemodynamic SVD and bioprosthetic valve failure (BVF) using recently standardised
definitions in a Western Australian cohort after at least 5 years.
Methods
This is a retrospective cohort study of consecutive patients undergoing TAVI at Royal
Perth Hospital between January 2009 and January 2015. Of 211 patients, 55 survived
≥5 years and had echocardiographic data available for review. Median time to the echocardiogram
was 5.9 years (max 7.8 years); 49% male, mean age 83 years.
Results
Of the 55 survivors who had echocardiograms available ≥5 years after TAVI, four (9%)
had moderate haemodynamic SVD and one (2%) had severe SVD and BVF.
Conclusions
Our results suggest excellent long-term durability of contemporary TAVI valves in
an Australian cohort with very low incidence of SVD and BVF. These findings add confidence
to the expanding applications of TAVI valves.
Keywords
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Article info
Publication history
Published online: December 13, 2021
Accepted:
November 2,
2021
Received in revised form:
May 28,
2021
Received:
September 7,
2020
Identification
Copyright
© 2021 Australian and New Zealand Society of Cardiac and Thoracic Surgeons (ANZSCTS) and the Cardiac Society of Australia and New Zealand (CSANZ). Published by Elsevier B.V. All rights reserved.
