%0 Journal Article %T Warfarin anticoagulation in acute type A aortic dissection survivors (WATAS) %A Kodolitsch, Yskert von %A Wilson, Oliver %A Schüler, Helke %A Larena-Avellaneda, Axel %A Kölbel, Tilo %A Wipper, Sabine %A Rohlffs, Fiona %A Behrendt, Christian %A Debus, E. Sebastian %A Brickwedel, Jens %A Girdauskas, Evaldas %A Detter, Christian %A Bernhardt, Alexander M. %A Berger, Jürgen %A Blankenberg, Stefan %A Reichenspurner, Hermann %A Ghazy, Tamer %A Matschke, Klaus %A Hoffmann, Ralf-Thorsten %A Weiss, Norbert %A Mahlmann, Adrian %J Cardiovascular Diagnosis and Therapy %D 2017 %B 2017 %9 %! Warfarin anticoagulation in acute type A aortic dissection survivors (WATAS) %K %X Background: Early survivors of acute type A aortic dissection (AAAD) remain at risk for late death and late aortic events. However, the frequency and long-term effects of warfarin anticoagulation on long-term outcome in post-surgical AAAD survivors have not been elucidated. Methods: Two tertiary care centers performed a retrospective observational cohort study of warfarin anticoagulation in AAAD in 243 persons with early survival of surgical repair (WATAS). Serial postoperative tomographic imaging was available in 106 persons. Results: A total of 88 postoperative AAAD survivors (36%) were on long-term warfarin anticoagulation. The indication for anticoagulation was a mechanical aortic prosthesis in 46 (52%), atrial fibrillation in 33 (38%), stroke in 7 (8%), and pulmonary embolism in one (1%). The indication for anticoagulation remained unclear in one person (1%). Survival and aortic event free survival were 98.3±0.01 and 98.7±0.01 at 1 year, and 76.4±0.03 and 91.8±0.02 at 5 years, respectively, with no differences irrespective of warfarin anticoagulation. Multivariate Cox regression analysis established higher age (P %U https://cdt.amegroups.org/article/view/16906 %V 7 %N 6 %P 559-571 %@ 2223-3660