<abstract xmlns="http://www.w3.org/1999/xhtml"><bold>Objectives</bold>. In this study we tried to determine the values of the left atrial (LA) strain in patients with atrial fibrillation (AF) and set a parameter that could be a predictor of sinus rhythm (SR) maintenance.<bold>Study population.</bold> We included 60 patients with left ventricular ejection fraction (LVEF) ≥50% - 33 (55%) of them were known to have in their personal history AF (newly diagnosed, paroxysmal and persistent) and they were examined at SR. The second group was represented by 27 (45%) patients that were examined in AF. Using two dimensional speckle tracking echocardiography (2D STE) it was quantified the strain of the 3 functions that characterize the physiology of the LA - reservoir, conduct and pump in the apical sections, mentioning that the pump was absent in patients examined in AF.<bold>Results.</bold> The average of the reservoir (R%) for all sections had a significantly higher value in patients with SR (20,2±6,225%) compared to patients examined in AF (6,505±2,66%): P&lt;0.001. With the help of the logistic regression model was observed that only systolic LA strain had the highest predictive power of maintenance of SR. The cutt off value of ≥13,25% of the R% has a sensitivity (Se) and a specificity (Sp) of 90,9%, respectively 100% for maintenance of SR.<bold>Conclusions.</bold> In the present study, after analyzing all the parameters that were associated between the 2 groups, it was found that only R %, as the only variable, has the highest predictor power for maintenance of SR.</abstract>

Objectives. In this study we tried to determine the values of the left atrial (LA) strain in patients with atrial fibrillation (AF) and set a parameter that could be a predictor of sinus rhythm (SR) maintenance.Study population. We included 60 patients with left ventricular ejection fraction (LVEF) ≥50% - 33 (55%) of them were known to have in their personal history AF (newly diagnosed, paroxysmal and persistent) and they were examined at SR. The second group was represented by 27 (45%) patients that were examined in AF. Using two dimensional speckle tracking echocardiography (2D STE) it was quantified the strain of the 3 functions that characterize the physiology of the LA - reservoir, conduct and pump in the apical sections, mentioning that the pump was absent in patients examined in AF.Results. The average of the reservoir (R%) for all sections had a significantly higher value in patients with SR (20,2±6,225%) compared to patients examined in AF (6,505±2,66%): P<0.001. With the help of the logistic regression model was observed that only systolic LA strain had the highest predictive power of maintenance of SR. The cutt off value of ≥13,25% of the R% has a sensitivity (Se) and a specificity (Sp) of 90,9%, respectively 100% for maintenance of SR.Conclusions. In the present study, after analyzing all the parameters that were associated between the 2 groups, it was found that only R %, as the only variable, has the highest predictor power for maintenance of SR.

Atrial Strain in Atrial Fibrillation Patients: A 2D Speckle Tracking Echocardiography Study

“Carol Davila” University of Medicine and Pharmacy

Internal Medicine

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Objectives. In this study we tried to determine the values of the left atrial (LA) strain in patients with atrial fibrillation (AF) and set a parameter that...

Atrial Strain in Atrial Fibrillation Patients: A 2D Speckle Tracking Echocardiography Study

Publicado en línea: 05 dic 2019

Páginas: 7 - 18

DOI: https://doi.org/10.2478/inmed-2019-0080

© 2019 Maria-Luiza Toplicianu et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.