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Left Atrial Longitudinal Strain Parameters Predict Postoperative Persistent Atrial Fibrillation Following Mitral Valve Surgery: A Speckle Tracking Echocardiography Study
Author(s) -
Candan Ozkan,
Ozdemir Nihal,
Aung Soe Moe,
Dogan Cem,
Karabay Can Yucel,
Gecmen Cetin,
Omaygenç Onur,
Güler Ahmet
Publication year - 2013
Publication title -
echocardiography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 62
eISSN - 1540-8175
pISSN - 0742-2822
DOI - 10.1111/echo.12222
Subject(s) - medicine , atrial fibrillation , cardiology , sinus rhythm , speckle tracking echocardiography , mitral valve , cardiac surgery , mitral regurgitation , heart failure , ejection fraction
Postoperative atrial fibrillation ( POAF ) is common after cardiac surgery and is associated with increased morbidity, mortality, and prolonged hospital stay. Speckle tracking echocardiography ( STE ) has been applied recently for evaluation of LA function. The purpose of this study was to examine whether left atrial longitudinal strain measured by STE is a predictor for the development of POAF following mitral valve surgery for severe mitral regurgitation. We studied 53 patients undergoing mitral valve surgery in sinus rhythm at the time of surgery. Echocardiography with evaluation of LA strain by STE was performed. Detection of POAF was based on documentation of AF episodes by continuous telemetry throughout hospitalization. Patients who did not develop POAF were taken as group 1 and those who had POAF constituted group 2. The echocardiographic and clinical predictors of POAF were investigated. POAF occurred in 28.3% of subjects. Mean age, LAV i and BNP were found higher in group 2 while peak atrial longitudinal strain ( PALS ) (13.9 ± 3.8% vs. 24.8 ± 7.3%; P < 0.001), peak atrial contraction strain ( PACS ) (7.6 ± 1.95% vs. 11.3 ± 3.5%; P < 0.001) were significantly lower. By multivariate logistic regression analysis, PALS and LAV i were independent predictor of POAF development. LA longitudinal strain was found to predict POAF in patients undergoing mitral valve surgery. It could be used to better identify patients at greater risk of developing POAF , and thus to guide in risk stratification and to take appropriate intensive prophylactic therapy.