title: Emerging role of echocardiographic strain/strain rate imaging and twist in systolic function evaluation and operative procedure in patients with aortic stenosis.
abstract: Systolic function of the left ventricle is vital for patients with aortic stenosis. Unfortunately, the most widely used clinical parameter, the left ventricular ejection fraction, is not sensitive enough, especially for patients with left ventricular hypertrophy. Echocardiographic strain/strain rate and twist are emerging parameters for left ventricular systolic and diastolic function evaluation. Aortic stenosis could reduce strain/strain rate while magnifying twist. Furthermore, strain/strain rate correlates well with the prognosis of patients with aortic stenosis. Most importantly the circumferential strain, strain rate and twist also play a role in differentiating cardiac compensation or decompensation. In any case, these parameters could normalize after successful surgical aortic valve replacement or transcatheter aortic valve replacement. Regardless of these advantages, clinical evidence is needed to ensure their usefulness.
authors: Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, China.
authors: Bin
authors: B
authors: Wang
authors: Haiyan
authors: H
authors: Chen
authors: Xianhong
authors: X
authors: Shu
authors: Tao
authors: T
authors: Hong
authors: Hao
authors: H
authors: Lai
authors: Chunsheng
authors: C
authors: Wang
authors: Leilei
authors: L
authors: Cheng
mesh_terms: D001024:Aortic Valve Stenosis / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000601:surgery / Q000628:therapy*; D001696:Biomechanical Phenomena; D006328:Cardiac Catheterization; D015150:Echocardiography, Doppler; D019560:Echocardiography, Three-Dimensional; D019918:Heart Valve Prosthesis Implantation / Q000379:methods*; D006801:Humans; D011237:Predictive Value of Tests; D013314:Stress, Mechanical; D013599:Systole; D054159:Torsion, Mechanical; D016896:Treatment Outcome; D016277:Ventricular Function, Left
keywords: Aortic stenosis; Cardiac systolic function; Strain; Strain rate; Twist
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