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Left ventricular myocardial strain gradient using a novel multi-layer transthoracic echocardiography technique positively correlates with severity of aortic stenosis

2016; Elsevier BV; Volume: 221; Linguagem: Inglês

10.1016/j.ijcard.2016.06.275

1874-1754

Koya Ozawa, Nobusada Funabashi, Yoshio Kobayashi,

Cardiac Valve Diseases and Treatments

A recently developed transthoracic echocardiography (TTE) technique enables detailed myocardial multi-layer analysis of left ventricular (LV) endocardial and epicardial strain separately, in addition to whole transmural layer strain [ 1 Ozawa K. Funabashi N. Takaoka H. Kamata T. Kanaeda A. Saito M. Nomura F. Kobayashi Y. Characteristic myocardial strain identified in hypertrophic cardiomyopathy subjects with preserved left ventricular ejection fraction using a novel multi-layer transthoracic echocardiography technique. Int. J. Cardiol. 2015; 184: 237-243 Abstract Full Text Full Text PDF PubMed Scopus (48) Google Scholar , 2 Ono R. Funabashi N. Ozawa K. Takaoka H. Kamata T. Kobayashi Y. An educational intervention to help medical students achieve accurate and consistent measurement of longitudinal myocardial strain on transthoracic echocardiogram. Int. J. Cardiol. 2015; 201: 300-301 Abstract Full Text Full Text PDF PubMed Scopus (7) Google Scholar ]. However, there are few reports of multi-layer TTE analysis of the LV myocardium in severe aortic stenosis (AS) subjects.