Author's personal copy
Transapical Aortic Valve Implantation—
An Australian Experience
Michael Seco, BMedSc
a,b,c
, Gonzalo Martinez, MD
d
,
Paul G. Bannon, FRACS
a,b,c
, Bruce L. Cartwright, FANZCA
e
,
Mark Adams, FRACP
a,d
, Martin Ng, FRACP
a,d
,
Michael K. Wilson, FRACS
b,c,f
, Michael P. Vallely, FRACS
a,b,c,f*
a
Sydney Medical School, The University of Sydney, Sydney, Australia
b
The Baird Institute of Applied Heart and Lung Surgical Research, Sydney, Australia
c
Cardiothoracic Surgical Unit, Royal Prince Alfred Hospital, Sydney, Australia
d
Department of Cardiology, Royal Prince Alfred Hospital, Sydney, Australia
e
Department of Anaesthetics, Royal Prince Alfred Hospital, Sydney, Australia
f
Australian School of Advanced Medicine, Macquarie University, Sydney, Australia
Received 17 September 2013; received in revised form 21 October 2013; accepted 24 October 2013; online published-ahead-of-print 15 November 2013
© 2013 Australian and New Zealand Society of Cardiac and Thoracic Surgeons (ANZSCTS) and the Cardiac Society of Australia and New Zealand (CSANZ). Published by Elsevier
Inc. All rights reserved.
*Corresponding author at: The Heart Care Centre, Suite 406, Macquarie University Hospital Specialists Centre, 3 Technology Place, Macquarie University NSW
2109, Australia. Tel.: +61294226090; fax: +61294226099., Email: michael.vallely@bigpond.com
Background The aim of this study was to report our initial experience with the transapical approach to transcatheter
aortic valve implantation (TAVI) at an Australian institution.
Methods All patients with severe, symptomatic aortic stenosis were assessed by our multidisciplinary team. A total of
32 patients received a transapical TAVI using an Edwards SAPIEN prosthesis. Data were prospectively
collected and analysed according to the Valve Academic Research Consortium version 2 guidelines.
Results Intraoperative outcomes included: 100% device success with no conversion to surgical valve replacement,
extracorporeal membrane oxygenation was used electively in 15.6% and emergently in 6.3%, and no valve
migration or malpositioning requiring prosthesis retrieval and re-implantation.
Outcomes at 30 days post-TAVI included: No mortality, 3.1% myocardial infarction, no disabling stroke,
3.1% non-disabling stroke, no transient ischaemic attacks, 6.3% life-threatening bleeding, 15.6% major
bleeding, 3.1% major vascular complications, and 12.5% postoperative acute kidney injury requiring renal
replacement therapy. Mild paravalvular regurgitation was present in 29%, and there was no moderate or
severe regurgitation.
Mean follow-up time was 28.8 12.9 months. Cumulative results included: 9.4% mortality, 6.3% stroke,
6.3% myocardial infarction, and no repeat procedures. At one year postoperation, echocardiography
demonstrated that the mean pressure across the prosthesis was 10.1 1.7 mmHg, and the mean aortic
valve area was 1.4 0.2 cm
2
.
Conclusion Good short-term outcomes and low or zero mortality are achievable with transapical TAVI at an Australian
institution.
Keywords
Transapical Transcatheter aortic valve implantation Heart valve prosthesis Aortic valve stenosis
Heart, Lung and Circulation (2014) 23, 462–468
1443-9506/04/$36.00
http://dx.doi.org/10.1016/j.hlc.2013.10.095
ORIGINAL ARTICLE