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. 2021 Jul;112(1):132-138.
doi: 10.1016/j.athoracsur.2020.05.180. Epub 2020 Aug 6.

Aortic Valve Replacement in Young and Middle-Aged Adults: Current and Potential Roles of TAVR

Affiliations

Aortic Valve Replacement in Young and Middle-Aged Adults: Current and Potential Roles of TAVR

Jennifer S Nelson et al. Ann Thorac Surg. 2021 Jul.

Abstract

Background: Contemporary practice patterns and outcomes for aortic valve replacement (AVR) among young and middle-aged adults are unknown given guideline modifications for surgical AVR (SAVR) and increasing transcatheter AVR (TAVR) acceptance. This study describes SAVR and TAVR use and outcomes using The Society of Thoracic Surgeons (STS) National Databases.

Methods: Adults 18 to 55 years of age in the Congenital Heart Surgery Database (CHSD) and the Adult Cardiac Surgery Database (ACSD) who underwent SAVR or TAVR from 2013 to 2018 were included. Perioperative characteristics and early outcomes were described by valve type. Multivariable regression identified determinants of death, length of hospital stay, and a composite end point of renal failure, persistent neurologic deficit, readmission, and reoperation.

Results: The study analyzed 1580 unique CHSD and 44,173 ACSD operations, 16% of which were performed in patients with congenital heart disease. Valve use included the following: TAVR, 1%; mechanical, 42%; bioprosthetic, 55%; autograft, 0.6%; homograft, 1.2%; and Ozaki, 0.4%. Over time, TAVR volumes increased by 167%. The 30-day mortality was as follows: TAVR, 3.8%; mechanical, 3.2%; bioprosthetic, 3.7%; autograft, 0.6%; homograft, 9%; and Ozaki, 3.4%. Stroke rate was lower for isolated SAVR vs isolated TAVR (0.9% vs 2.4%; P = .002). In multivariable analyses, mortality risk was lower with mechanical valves, congenital morbidity risk was higher with TAVR, and length of stay was shorter with TAVR.

Conclusions: TAVR is increasingly used for adults younger than 55 years of age. Given the uniformly excellent results with SAVR, including both mortality and morbidity-particularly regarding stroke, our data favor SAVR in this population, but a prospective trial is needed. Ongoing efforts to harmonize variables and outcomes definitions between the ACSD and CHSD are valuable.

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