3Cotrufo M, Della Corte A. The association of bicuspid aortic valve disease with asymmetric dilatation of the tubular ascending aorta:identification of a definite syndrome [J] . J Cardiovasc Med (Hagerstown), 2009, 10 (4):291-297.
4Roberts WC, Vowels TJ, Ko JM. Natural history of adults with congenitally malformed aortic valves (unicuspid or bicuspid) [J] . Medicine, 2012, 91 (6):287-308.
5Sievers HH, Schmidtke C. A classification system for the bicuspid aortic valve from 304 surgical specimens [J] . J Thorac Cardiovasc Surg, 2007, 133 (5):1226-1233.
6Nishimura RA, Otto CM, Bonow RO, et al. 2014 AHA/ACC guideline for the management of patients with valvular heart disease a report of the American college of cardiology/American heart association task force on practice guidelines [J] . Circulation, 2014, 129 (23):E521-E643.
7American College of Cardiology Foundation Appropriate Use Criteria Task Force, American Society of Echoeardiography, American Heart Association, et al. ACCF/ASE/AHAIASN SCCT/SCMR 2011 Appropriate Use Criteria for Echocardiography. A Report of the American College of Cardiology Foundation Appropriate Use Criteria Task Force, American Society of Echocardiography, American Heart Association, American Society of Nuclear Cardiology, Heart Failure Society of America, Heart Rhythm Society, Society for Cardiovascular Angiography and Interventions, Society of Critical Care Medicine, Society of Cardiovascular Computed Tomography, and Society for Cardiovascular Magnetic Resonance Endorsed by the American College of Chest Physicians [J] . J Am Coll Cardiol, 2011, 57 (9):1126-1166.
8Cecconi M, Nistri S, Quarti A, et al. Aortic dilatatian in patients with bicuspid aortic valve [J] . J Cardiovasc Med (Hagerstown), 2006, 7 (1):11-20.
9Schaefer BM, Lewin MB, Stout KK, et al. The bicuspid aortic valve:an integrated phenotypic classification of leaflet morphology and aortic root shape [J] . Heart, 2008, 94 (12):1634-1638.
10Mascherbauer J. The 2014 AHA/ACC valve disease guideline:new stages of disease, new treatment options, and a call for earlier intervention [J] . Wien Klin Wochenschr, 2014, 126 (15/16):458-459.