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

Autor: Seyed Hossein Aalaei-Andabili, Ki E. Park, Calvin Y. Choi, Eddie W. Manning, Wade W. Stinson, Ryan Van Woerkom, Thomas Pilgrim, Dharam J. Kumbhani, Anthony A. Bavry
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Cardiology and Therapy, Vol 9, Iss 1, Pp 201-206 (2020)
Druh dokumentu: article
ISSN: 2193-8261
2193-6544
DOI: 10.1007/s40119-020-00161-y
Popis: Abstract 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
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