Otto CM, Nishimura RA, Bonow RO, et al. 2020 ACC/AHA guideline for the management of patients with valvular heart disease: a report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines. J Am Coll Cardiol. 2021;77:e25–197.
Vahanian A, Beyersdorf F, Praz F, et al. 2021 ESC/EACTS Guidelines for the management of valvular heart disease. Eur Heart J. 2022;43(7):561–632.
Baumgartner H, Hung J, Bermejo J, et al. Recommendations on the echocardiographic assessment of aortic valve stenosis: a focused update from the European Association of Cardiovascular Imaging and the American Society of Echocardiography. J Am Soc Echocardiogr. 2017;30:372–92.
Hachicha Z, Dumesnil JG, Bogaty P, et al. Paradoxical low-flow, low-gradient severe aortic stenosis despite preserved ejection fraction is associated with higher afterload and reduced survival. Circulation. 2007;115:2856–64.
Awtry E, Davidoff R. Low-flow/low-gradient aortic stenosis. Circulation. 2011;124:e739–41.
Clavel MA, Magne J, Pibarot P. Low-gradient aortic stenosis. Eur Heart J. 2016;37:2645–57.
Article PubMed PubMed Central Google Scholar
Mangner N, Stachel G, Woitek F, et al. Predictors of mortality and symptomatic outcome of patients with low-flow severe aortic stenosis undergoing transcatheter aortic valve replacement. J Am Heart Assoc. 2018;7: e007977.
Article PubMed PubMed Central Google Scholar
Vamvakidou A, Jin W, Danylenko O, et al. Low transvalvular flow rate predicts mortality in patients with low-gradient aortic stenosis following aortic valve intervention. JACC Cardiovasc Imaging. 2019;12(9):1715–24.
Clavel MA, Dumesnil JG, Capoulade R, et al. Outcome of patients with aortic stenosis, small valve area, and low-flow, low-gradient despite preserved left ventricular ejection fraction. J Am Coll Cardiol. 2012;60(14):1259–67.
Capoulade R, Ven FL, Clavel MA, et al. Echocardiographic predictors of outcomes in adults with aortic stenosis. Heart. 2016;102(12):934–42.
Article CAS PubMed Google Scholar
Lonnebakken MT, Simone GD, Saeed S, et al. Impact of stroke volume on cardiovascular risk during progression of aortic valve stenosis. Heart. 2017;103(18):1443–8.
Herrmann HC, Pibarot P, Hueter I, et al. Predictors of mortality and outcomes of therapy in low-flow severe aortic stenosis. Circulation. 2013;127(23):2316–26.
Sen J, Huynh Q, Stub D, et al. Prognosis of severe low-flow, low-gradient aortic stenosis by stroke volume index and transvalvular flow rate. J Am Coll Cardiol Img. 2021;14:915–27.
Zoghbi WA, Adams D, Bonow RO, et al. Recommendations for noninvasive evaluation of native valvular regurgitation: a report from the American Society of Echocardiography Developed in Collaboration with the Society for Cardiovascular Magnetic Resonance. J Am Soc Echocardiogr. 2017;30:303–71.
Liu S, Churchill J, Hua L, et al. Direct planimetry of the left ventricular outflow tract area by simultaneous biplane imaging: challenging the need for a circular assumption of the left ventricular outflow tract in the assessment of aortic stenosis. J Am Soc Echocardiogr. 2020;33:461–8.
Article PubMed PubMed Central Google Scholar
Nieznańska M, Zatorska K, Stoklosa P, et al. Comparison of the geometry of the left ventricle outflow tract, the aortic root and the ascending aorta in patients with severe tricuspid aortic stenosis versus healthy controls. Int J Cardiovasc Imaging. 2020;36(2):357–66.
Shibayama K, Harada K, Berdejo J, et al. Comparison of aortic root geometry with bicuspid versus tricuspid aortic valve: real-time three-dimensional transesophageal echocardiographic study. J Am Soc Echocardiogr. 2014;27:1143–52.
Maes F, Meester C, Boulif J, et al. Impact of left ventricular outflow tract ellipticity on the grading of aortic stenosis in patients with normal ejection fraction. J Cardiovasc Magn Reson. 2017;19(1):37.
Article PubMed PubMed Central Google Scholar
Jilaihawi H, Kashif M, Fontana G, et al. Cross-sectional computed tomographic assessment improves accuracy of aortic annular sizing for transcatheter aortic valve replacement and reduces the incidence of paravalvular aortic regurgitation. J Am Coll Cardiol. 2012;59(14):1275–86.
Hamdan A, Guetta V, Konen E, et al. Deformation dynamics and mechanical properties of the aortic annulus by 4-dimensional computed tomography: insights into the functional anatomy of the aortic valve complex and implications for transcatheter aortic valve therapy. J Am Coll Cardiol. 2012;59(2):119–27.
Mehrotra P, Flynn AW, Jansen K, et al. Differential left ventricular outflow tract remodeling and dynamics in aortic stenosis. J Am Soc Echocardiogr. 2015;28(11):1259–66.
Gaspar T, Adawi S, Sachner R, et al. Three-dimensional imaging of the left ventricular outflow tract: impact on aortic valve area estimation by the continuity equation. J Am Soc Echocardiogr. 2012;25:749–57.
Oshita C, Murata K, Wada Y, et al. Assessment of the aortic valve annular geometry by real-time three-dimensional transthoracic echocardiography: comparison with two-dimensional transthoracic echocardiography and multidetector computed tomography. J Echocardiogr. 2014;12(1):24–30.
Rusinaru D, Bohbot Y, Ringle A, et al. Impact of low stroke volume on mortality in patients with severe aortic stenosis and preserved left ventricular ejection fraction. Eur Heart J. 2018;39(21):1992–9.
Stahli BE, Stadler T, Holy EW, et al. Impact of stroke volume assessment by integrating multi-detector computed tomography and Doppler data on the classification of aortic stenosis. Int J Cardiol. 2017;1(246):80–6.
Clavel MA, Burwash IG, Pibarot P. Cardiac imaging for assessing low-gradient severe aortic stenosis. JACC Cardiovasc Imaging. 2017;10:185–202.
Eleid MF, Sorajja P, Michelena HI, et al. Flow-gradient patterns in severe aortic stenosis with preserved ejection fraction: clinical characteristics and predictors of survival. Circulation. 2013;128(16):1781–9.
Article PubMed PubMed Central Google Scholar
Tribouilloy C, Rusinaru D, Marechaux S, et al. Low-gradient, low-flow severe aortic stenosis with preserved left ventricular ejection fraction. J Am Coll Cardiol. 2015;65:55–66.
Ueyama H, Kuno T, Harrington M, et al. Impact of surgical and transcatheter aortic valve replacement in low-gradient aortic stenosis. J Am Coll Cardiol Intv. 2021;14:1481–92.
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