RT Journal Article T1 Impact of Morbid Obesity and Obesity Phenotype on Outcomes After Transcatheter Aortic Valve Replacement. A1 McInerney, Angela A1 Tirado-Conte, Gabriela A1 Rodes-Cabau, Josep A1 Campelo-Parada, Francisco A1 Tafur Soto, Jose D A1 Barbanti, Marco A1 Muñoz-Garcia, Erika A1 Arif, Mobeena A1 Lopez, Diego A1 Toggweiler, Stefan A1 Veiga, Gabriela A1 Pylko, Anna A1 Sevilla, Teresa A1 Compagnone, Miriam A1 Regueiro, Ander A1 Serra, Viçent A1 Carnero, Manuel A1 Oteo, Juan F A1 Rivero, Fernando A1 Barbosa Ribeiro, Henrique A1 Guimaraes, Leonardo A1 Matta, Anthony A1 Giraldo Echavarria, Natalia A1 Valvo, Roberto A1 Moccetti, Federico A1 Muñoz-Garcia, Antonio J A1 Lopez-Pais, Javier A1 Garcia Del Blanco, Bruno A1 Campanha Borges, Diego Carter A1 Dumont, Eric A1 Gonzalo, Nieves A1 Criscione, Enrico A1 Dabrowski, Maciej A1 Alfonso, Fernando A1 de la Torre Hernández, Jose M A1 Cheema, Asim N A1 Amat-Santos, Ignacio J A1 Saia, Francesco A1 Escaned, Javier A1 Nombela-Franco, Luis K1 epicardial adipose tissue K1 morbid obesity K1 subcutaneous adipose tissue K1 transcatheter aortic valve replacement K1 visceral adipose tissue AB Background There is a paucity of outcome data on patients who are morbidly obese (MO) undergoing transcatheter aortic valve replacement. We aimed to determine their periprocedural and midterm outcomes and investigate the impact of obesity phenotype. Methods and Results Consecutive patients who are MO (body mass index, ≥40 kg/m2, or ≥35 kg/m2 with obesity-related comorbidities; n=910) with severe aortic stenosis who underwent transcatheter aortic valve replacement in 18 tertiary hospitals were compared with a nonobese cohort (body mass index, 18.5-29.9 kg/m2, n=2264). Propensity-score matching resulted in 770 pairs. Pre-transcatheter aortic valve replacement computed tomography scans were centrally analyzed to assess adipose tissue distribution; epicardial, abdominal visceral and subcutaneous fat. Major vascular complications were more common (6.6% versus 4.3%; P=0.043) and device success was less frequent (84.4% versus 88.1%; P=0.038) in the MO group. Freedom from all-cause and cardiovascular mortality were similar at 2 years (79.4 versus 80.6%, P=0.731; and 88.7 versus 87.4%, P=0.699; MO and nonobese, respectively). Multivariable analysis identified baseline glomerular filtration rate and nontransfemoral access as independent predictors of 2-year mortality in the MO group. An adverse MO phenotype with an abdominal visceral adipose tissue:subcutaneous adipose tissue ratio ≥1 (VAT:SAT) was associated with increased 2-year all-cause (hazard ratio [HR], 3.06; 95% CI, 1.20-7.77; P=0.019) and cardiovascular (hazard ratio, 4.11; 95% CI, 1.06-15.90; P=0.041) mortality, and readmissions (HR, 1.81; 95% CI, 1.07-3.07; P=0.027). After multivariable analysis, a (VAT:SAT) ratio ≥1 remained a strong predictor of 2-year mortality (hazard ratio, 2.78; P=0.035). Conclusions Transcatheter aortic valve replacement in patients who are MO has similar short- and midterm outcomes to nonobese patients, despite higher major vascular complications and lower device success. An abdominal VAT:SAT ratio ≥1 identifies an obesity phenotype at higher risk of adverse clinical outcomes. YR 2021 FD 2021-05-31 LK http://hdl.handle.net/10668/17854 UL http://hdl.handle.net/10668/17854 LA en DS RISalud RD Apr 6, 2025