Relationship between Invasive and Echocardiographic Transvalvular Gradients after Transcatheter Aortic Valve Replacement.

Aalaei-Andabili, Seyed Hossein; Park, Ki E; Choi, Calvin Y; Manning, Eddie W; Stinson, Wade W; Van Woerkom, Ryan; Pilgrim, Thomas; Kumbhani, Dharam J; Bavry, Anthony A (2020). Relationship between Invasive and Echocardiographic Transvalvular Gradients after Transcatheter Aortic Valve Replacement. Cardiology and therapy, 9(1), pp. 201-206. Springer 10.1007/s40119-020-00161-y

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INTRODUCTION

Lower transcatheter aortic valve replacement (TAVR) pressure gradients have been reported after implantation of self-expanding valves compared with balloon-expandable valves; however, there is a paucity of data on the relationship between invasively measured transvalvular pressure gradients and Doppler-derived measurements.

METHODS

From September 2013 to September 2018, patients with native aortic valve stenosis who had both intraoperative invasive and postoperative echocardiography transvalvular pressure gradients were included for analysis. We used parametric and nonparametric statistics to compare aortic gradients within and between groups.

RESULTS

Of 171 patients, 152 (88.9%) patients had TAVR with a balloon-expandable valve and 19 (11.1%) with a self-expanding valve. Among all patients, the invasive aortic gradient was 7.8 ± 3.2 mmHg and the Doppler-derived aortic gradient was 11.0 ± 4.5 mmHg (p < 0.001). Among those who received a balloon-expandable valve, the invasive aortic gradient was 7.5 ± 3 mmHg and the Doppler aortic gradient was 11.4 ± 4.5 mmHg (p < 0.001). In contrast, among patients who received a self-expanding valve, the invasive aortic gradient was 10.3 ± 3.4 mmHg and the Doppler aortic gradient was 8.5 ± 4.6 mmHg (p = 0.18).

CONCLUSIONS

Balloon-expandable valves were associated with lower invasive measurements versus post-TAVR Doppler gradients, while results were inconclusive regarding self-expanding valves.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Cardiovascular Disorders (DHGE) > Clinic of Cardiology

UniBE Contributor:

Pilgrim, Thomas

Subjects:

600 Technology > 610 Medicine & health

ISSN:

2193-6544

Publisher:

Springer

Language:

English

Submitter:

Nadia Biscozzo

Date Deposited:

04 Dec 2020 15:36

Last Modified:

24 Feb 2021 10:33

Publisher DOI:

10.1007/s40119-020-00161-y

PubMed ID:

31970689

Uncontrolled Keywords:

Balloon-expanding valve Doppler aortic gradient Invasive aortic gradient Self-expanding valve TAVR

BORIS DOI:

10.7892/boris.147546

URI:

https://boris.unibe.ch/id/eprint/147546

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