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• W2034112759 abstract "Caracterizar la función del apéndice auricular izquierdo por speckle tracking bidimensional, en pacientes en ritmo sinusal y en fibrilación auricular. Se realizó ecocardiografía transesofágica para valorar la deformación longitudinal, la tasa de deformación longitudinal, las velocidades del tejido, el volumen y la fracción de eyección del apéndice auricular izquierdo a través de speckle tracking bidimensional, en pacientes en ritmo sinusal y con fibrilación auricular. Se incluyeron 91 pacientes de quienes fue posible analizar 80 (88%). El 25% estaba en fibrilación auricular y de éstos el 9% tenía trombo en el apéndice auricular izquierdo; el 46% correspondía a hombres con edad media de 60 años (18–93). Se encontraron diferencias significativas entre los pacientes con fibrilación auricular vs. ritmo sinusal en la facción de eyección del apéndice auricular izquierdo (26,7% vs. 50,1%), las velocidades de vaciamiento por Doppler (28,5 vs. 55,6 cm/s), las velocidades tisulares (3,6 vs. 9,9 cm/s), la deformación longitudinal (5,7% vs. 17%), la tasa de deformación longitudinal (0,9 vs. 3,1) y los volúmenes mínimos del apéndice auricular izquierdo (6,3 vs. 3,0 mL). No se encontraron diferencias significativas entre los pacientes en fibrilación auricular con trombo o sin éste. La valoración de la función del apéndice auricular izquierdo por medio de speckle tracking, es una herramienta útil para caracterizar la función de esta estructura; su alteración se podría relacionar con el riesgo de desarrollar trombos y eventos embólicos secundarios. To characterize the function of the left atrial appendage by two-dimensional speckle tracking in patients in sinus rhythm and atrial fibrillation. Transesophageal echocardiography was performed to assess the longitudinal deformation, the rate of longitudinal deformation, tissue velocities, volume, and ejection fraction of the left atrial appendage through two-dimensional speckle tracking in patients in sinus rhythm and atrial fibrillation. 91 patients were included and it was possible to analyze 80 (88%). 25% had atrial fibrillation and of these 9% had thrombus in the left atrial appendage; 46% were men with a mean age of 60 years (18–93). Significant differences were found between patients with atrial fibrillation vs. sinus rhythm in the left atrial appendage ejection fraction (26.7% vs. 50.1%), the Doppler emptying velocities (28.5 vs. 55.6 cm/s), tissue velocities (3.6 vs. 9.9 cm/s), the longitudinal deformation (5.7% vs.17%), the longitudinal deformation rate (0.9 vs. 3.1) and minimum volumes of the left atrial appendage (6.3 vs. 3.0 mL). No significant differences were found between patients with atrial fibrillation with or without thrombus. The assessment of left atrial appendage function by speckle tracking is a useful tool to characterize the function of this structure. Its alteration could be related to the risk of the development of thrombus and secondary embolic events." @default.
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• W2034112759 date "2014-05-01" @default.
• W2034112759 modified "2023-09-23" @default.
• W2034112759 title "Valoración de la función del apéndice auricular izquierdo por speckle tracking" @default.
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• W2034112759 doi "https://doi.org/10.1016/s0120-5633(14)70272-4" @default.
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