ABC | Volume 110, Nº5, May 2018

Viewpoint Rosa et al Diagnosis of paradoxical aortic stenosis Arq Bras Cardiol. 2018; 110(5):484-486 This is an open-access article distributed under the terms of the Creative Commons Attribution License 11. Clavel MA, Berthelot-Richer M, Le Ven F, Capoulade R, Dahou A, Dumesnil JG, et al. Impact of classic and paradoxical low flow on survival after aortic valve replacement for severe aortic stenosis. J Am Coll Cardiol. 2015;65(7):645-53. doi: 10.1016/j.jacc.2014.11.047. 12. Tribouilloy C, Bohbot Y, Maréchaux S, Debry N, Delpierre Q, Peltier M, et al. Outcome implication of aortic valve area normalized to body size in asymptomatic aortic stenosis. Circ Cardiovasc Imaging. 2016;9(11). pii: e005121. doi: 10.1161/CIRCIMAGING.116.005121. 13. Hachicha Z, Dumesnil JG, Pibarot P. Usefulness of the valvuloarterial impedance to predict adverse outcome in asymptomatic aortic stenosis. J AmColl Cardiol. 2009;54(11):1003-11. doi: 10.1016/j.jacc.2009.04.079. 14. Cueff C, Serfaty JM, Cimadevilla C, Laissy JP, Himbert D, Tubach F, et al. Measurement of aortic valve calcification using multislice computed tomography: correlation with haemodynamic severity of aortic stenosis and clinical implication for patients with low ejection fraction. Heart. 2011;97(9):721-6. doi: 10.1136/hrt.2010.198853. 15. Clavel MA, Messika-Zeitoun D, Pibarot P, Aggarwal SR, Malouf J, Araoz PA, et al. The complex nature of discordant severe calcified aortic valve disease grading: new insights from combined Doppler echocardiographic and computed tomographic study. J AmColl Cardiol. 2013Dec 17;62(24):2329- 38. doi: 10.1016/j.jacc.2013.08.1621. 486