https://www.selleckchem.com/products/gf109203x.html 001) and anticoagulant medication rate (P = 0.021), and lower overall mortality risk (subdistribution hazard ratio [SHR], 0.63; 95% confidence interval [CI], 0.42-0.94), but higher risk of permanent pacemaker implantation (SHR, 4.67; 95% CI, 1.36-16.05). No significant difference in the risk of stroke (SHR, 1.27; 95% CI, 0.55-2.95) was observed between the groups. After baseline IPTW-adjustment, findings of the clinical outcomes were analogous to those from crude analyses. In patients undergoing bioprosthetic valve replacement, the addition of surgical ablation was associated with improved rhythm outcomes and survival but at the expense of a higher risk of pacemaker implantation. The underlying mechanism of improved survival by AF ablation needs further investigation.We aim to use computational fluid dynamics to investigate the hemodynamic conditions that may predispose to false lumen enlargement in this patient population. Nine patients who received surgical repairs of their type-A aortic dissections between 2017-2018 were retrospectively identified. Multiple contrast-enhanced post-operative CT scans were used to construct 3D models of aortic geometries. Computational fluid dynamics simulations of the models were run on a high-performance computing cluster using SimVascular - an open-source simulation package. Physiological pulsatile flow conditions (4.9 L/min) were used at the aortic true lumen inlet, and physiological vascular resistances were applied at the distal vascular ends. Exploratory analyses showed no correlation between rate of false lumen growth and blood pressure, immediate post-op aortic diameter, or the number of fenestrations (p = 0.2). 1-year post-operative CT scans showed a median false lumen growth rate of 4.31 (3.66, 14.67) mm/year Median (Interquartile range) peak systolic, mid-diastolic, and late diastolic velocity magnitudes were 0.90 (1.40); 0.10 (0.16); and 0.06 (0.06) cm/s respectively.