RT Journal Article T1 Observational Study of the Association between Atrial Fibrillation and In-Hospital Mortality during Hospitalization for Solid Organ Transplants in Spain from 2004 to 2021 A1 Miguel Yanes, José María De A1 López De Andrés, Ana Isabel A1 Jiménez García, Rodrigo A1 Zamorano León, José Javier A1 Carabantes Alarcón, David A1 Hernández-Barrera, Valentín A1 Miguel Díez, Javier De A1 Carricondo Orejana, Francisco Javier A1 Romero Gómez, Bárbara A1 Cuadrado Corrales, María Natividad AB Background: We analyzed the association between atrial fibrillation or atrial flutter (AF) and in-hospital mortality (IHM) among patients who underwent solid organ transplants in Spain from 2004 to 2021. (2) Methods: We gathered information from all hospital admissions for lung, liver, kidney, and heart transplants. (3) Results: A total of 71,827 transplants were analyzed (4598 lung transplants; 18,127 liver transplants; 45,262 kidney transplants; and 4734 heart transplants). One third of these were for women. Overall, the prevalence of AF was 6.8% and increased from 5.3% in 2004-2009 to 8.6% in 2016-2021. The highest prevalence of AF was found for heart transplants (24.0%), followed by lung transplants (14.7%). The rates for kidney and liver transplants were 5.3% and 4.1%, respectively. The AF code increased over time for all of the transplants analyzed (p < 0.001). The patients' IHM decreased significantly from 2004-2009 to 2016-2021 for all types of transplants. AF was associated with a higher IHM for all of the types of transplants analyzed, except for heart transplants. (4) Conclusions: The prevalence of AF among patients admitted for solid organ transplants was highest for those who underwent heart transplants. The mortality rate during the patients' admission for lung, liver, kidney, or heart transplants decreased over time. AF was independently associated with a higher risk of dying in the hospital for those who underwent lung, liver, or kidney transplants. PB MDPI SN 2077-0383 YR 2023 FD 2023-11-13 LK https://hdl.handle.net/20.500.14352/93291 UL https://hdl.handle.net/20.500.14352/93291 LA eng NO de-Miguel-Yanes, J. M., Lopez-de-Andres, A., Jimenez-Garcia, R., Zamorano-Leon, J. J., Carabantes-Alarcon, D., Hernández-Barrera, V., De-Miguel-Diez, J., Carricondo, F., Romero-Gomez, B., & Cuadrado-Corrales, N. (2023). Observational Study of the Association between Atrial Fibrillation and In-Hospital Mortality during Hospitalization for Solid Organ Transplants in Spain from 2004 to 2021. Journal of clinical medicine, 12(22), 7056. https://doi.org/10.3390/jcm12227056 NO Comunidad Autónoma de Madrid NO Universidad Complutense de Madrid DS Docta Complutense RD 22 abr 2025