RT Journal Article T1 Outcome Analysis in Elective Electrical Cardioversion of Atrial Fibrillation Patients: Development and Validation of a Machine Learning Prognostic Model. A1 Nuñez-Garcia, Jean C A1 Sánchez-Puente, Antonio A1 Sampedro-Gómez, Jesús A1 Vicente-Palacios, Victor A1 Jiménez-Navarro, Manuel A1 Oterino-Manzanas, Armando A1 Jiménez-Candil, Javier A1 Dorado-Diaz, P Ignacio A1 Sánchez, Pedro L K1 atrial fibrillation K1 electrical cardioversion K1 machine-learning K1 pharmacologic cardioversion K1 rhythm control AB Background: The integrated approach to electrical cardioversion (EC) in atrial fibrillation (AF) is complex; candidates can resolve spontaneously while waiting for EC, and post-cardioversion recurrence is high. Thus, it is especially interesting to avoid the programming of EC in patients who would restore sinus rhythm (SR) spontaneously or present early recurrence. We have analyzed the whole elective EC of the AF process using machine-learning (ML) in order to enable a more realistic and detailed simulation of the patient flow for decision making purposes. Methods: The dataset consisted of electronic health records (EHRs) from 429 consecutive AF patients referred for EC. For analysis of the patient outcome, we considered five pathways according to restoring and maintaining SR: (i) spontaneous SR restoration, (ii) pharmacologic-cardioversion, (iii) direct-current cardioversion, (iv) 6-month AF recurrence, and (v) 6-month rhythm control. We applied ML classifiers for predicting outcomes at each pathway and compared them with the CHA2DS2-VASc and HATCH scores. Results: With the exception of pathway (iii), all ML models achieved improvements in comparison with CHA2DS2-VASc or HATCH scores (p SN 2077-0383 YR 2022 FD 2022-05-07 LK http://hdl.handle.net/10668/21282 UL http://hdl.handle.net/10668/21282 LA en DS RISalud RD Apr 6, 2025