Atrial Dispersion Predicts Atrial Fibrillation in Mitral Stenosis: A Five-Year Follow-Up SpeckleTracking Echocardiography Study

Authors : Özkan CANDAN

Pages : 27-33

View : 12 | Download : 8

Publication Date : 2023-03-21

Article Type : Research Paper

Abstract :Introduction: Atrial dispersion showing increased electrical heterogeneity may be associated with the occurence of atrial fibrillation insert ignore into journalissuearticles values(AF);. In our study, it was aimed to investigate the effects of atrial dispersion evaluated by speckle tracking echocardiography on the occurence of AF on in patients with mild to moderate rheumatic mitral stenosis. Patients and Methods: Sixty-two patients with rheumatic mitral stenosis with sinus rhythm, asymptomatic or NYHA 1 symptoms were included in the study. The time to peak atrial strain was measured for each segment by speckle tracking echocardiography in two and four-chamber views. Atrial dispersion was calculated by taking the standard deviation of time to peak strain in 12 left atrial segments. Echocardiographic and clinical parameters of the patients were compared according to the development of AF. Results: During follow-up insert ignore into journalissuearticles values(mean follow-up duration, 49.9 ± 12.9 months);, 19 patients insert ignore into journalissuearticles values(30%); developed AF. Compared to patients who did not develop AF at follow-up, patients with AF were older insert ignore into journalissuearticles values(46.8 ± 10.2 vs. 35.9 ± 12, p= 0.001);, while mitral valve area insert ignore into journalissuearticles values(MVA); insert ignore into journalissuearticles values(1.38 ± 0.1 vs. ± 1.49 ± 0.18 vs. p= 0.02);, PALS insert ignore into journalissuearticles values(13.7 ± 4 vs. 18.8 ± 5.5, p= 0.001); and PACS insert ignore into journalissuearticles values(6 ± 2.3 vs. 8.2 ± 3.8, p= 0.002); were found to be lower. Atrial dispersion was found to be increased in patients who developed AF insert ignore into journalissuearticles values(63.2 ± 13.5 vs. 46.1 ± 22.3, p= 0.003);. Age, atrial dispersion and PALS were determined as independent predictors of AF development in Cox regression analysis. Conclusion: Atrial dispersion, a new parameter measured by STE, predicts the development of AF. Increased atrial dispersion may provide additional benefits in initiating prophylactic antiarrhythmic drug therapy or anticoagulants.
Keywords : Mitral valve stenosis, atrial fibrillation, 2D echocardiography