Austin Chin Chwan

Background Atrial fibrillation (AF) is common after cardiac surgery. Few studies compared clinical outcomes associated with AF between patients undergoing aortic valve surgery (AVSx) versus mitral valve surgery (MVSx). Methods Patients who had open-heart cardiac valve surgery (1- July-2003 to 31-March-2021) identified from the Admitted-Patient-Data-Collection database in Australia were stratified by AF status (No-AF vs. New-AF vs.

The study cohort comprised 23,720 patients (63.4% male) who were discharged alive following cardiac valve surgery between 2001 and 2017 (Table 1). Of these, 1266 (5.3%) patients had a recorded episode of PVE during follow-up. The incidence of PVE was 1.5% after 1 year, 3.9% at 5 years, and 7.8% at 15 years (Fig. 3). The median age of the total cohort was 73 (IQR 65–79) years old and was slightly younger for patients who subsequently experienced PVE (Table 1).