Abstract
Objective To explore the left ventricular systolic function in patients with atrial fibrillation（AF） and heart failure with normal ejection fraction（HFnEF） using tri-plane 2D, 3D speckle tracking imaging （STI） and single-beat real-time three-dimensional ultrasound. Methods Thirty-four patients with AF and HFnEF were enrolled as HFnEF group and twenty-nine AF patients without any kind of heart failure as control group. Left ventricular ejection fraction （LVEF） was measured by hi-plane Simpson＇s method, regional systolic function of left ventricle was evaluated by 2D-STI and 3D-STI, and synchronism of left ventricle was assessed using tissue Doppler imaging （TDI）, tri-plane 2D-STI and 3I）- STI.Resnlts HFnEF group had higher two-dimensional longitudinal strain and lower two-dimensional radial strain.Left ventricular synchronism in HFnEF group was significantly poorer than that in control group. Conclusions 2D/3D STI is more sensitive than TDI and it can discover contractility abnormal and asynchronism in patients with both AF and HFnEF with the help of tri-plane imaging and single-beat real- time three-dimensional ultrasound. Key words: Echocardiography; Heart failure; Atrial fibrillation
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