OBJECTIVES: The purpose of this study was to assess left atrial (LA) strain during long-term follow-up after catheter ablation for atrial fibrillation and to find predictors for LA reverse remodeling. BACKGROUND: The association between LA reverse remodeling and improvement in LA strain after catheter ablation has not been investigated thus far. METHODS: In 148 patients undergoing catheter ablation for atrial fibrillation, LA volumes and LA strain were assessed with echocardiography at baseline and after a mean of 13.2 ± 6.7 months of follow-up. The study population was divided according to LA reverse remodeling at follow-up: responders were defined as patients who exhibited 15% or more reduction in maximum LA volume at long-term follow-up. Left atrial systolic (LAs) strain was assessed with tissue Doppler imaging. RESULTS: At follow-up, 93 patients (63%) were classified as responders, whereas 55 patients (37%) were nonresponders. At baseline, LAs strain was significantly higher in the responders as compared with the nonresponders (19 ± 8% vs. 14 ± 6%; p = 0.001). Among the responders, a significant increase in LAs strain was noted from baseline to follow-up (from 19 ± 8% to 22 ± 9%; p < 0.05), whereas no change was noted among the nonresponders. LAs strain at baseline was an independent predictor of LA reverse remodeling (odds ratio: 1.813; 95% confidence interval: 1.102 to 2.982; p = 0.019). CONCLUSIONS: In the present study, 63% of the patients exhibited LA reverse remodeling after catheter ablation for atrial fibrillation, with a concomitant improvement in LA strain. LA strain at baseline was an independent predictor of LA reverse remodeling. Copyright Â
OBJECTIVES: The purpose of this study was to assess left atrial (LA) strain during long-term follow-up after catheter ablation for atrial fibrillation and to find predictors for LA reverse remodeling. BACKGROUND: The association between LA reverse remodeling and improvement in LA strain after catheter ablation has not been investigated thus far. METHODS: In 148 patients undergoing catheter ablation for atrial fibrillation, LA volumes and LA strain were assessed with echocardiography at baseline and after a mean of 13.2 ± 6.7 months of follow-up. The study population was divided according to LA reverse remodeling at follow-up: responders were defined as patients who exhibited 15% or more reduction in maximum LA volume at long-term follow-up. Left atrial systolic (LAs) strain was assessed with tissue Doppler imaging. RESULTS: At follow-up, 93 patients (63%) were classified as responders, whereas 55 patients (37%) were nonresponders. At baseline, LAs strain was significantly higher in the responders as compared with the nonresponders (19 ± 8% vs. 14 ± 6%; p = 0.001). Among the responders, a significant increase in LAs strain was noted from baseline to follow-up (from 19 ± 8% to 22 ± 9%; p < 0.05), whereas no change was noted among the nonresponders. LAs strain at baseline was an independent predictor of LA reverse remodeling (odds ratio: 1.813; 95% confidence interval: 1.102 to 2.982; p = 0.019). CONCLUSIONS: In the present study, 63% of the patients exhibited LA reverse remodeling after catheter ablation for atrial fibrillation, with a concomitant improvement in LA strain. LA strain at baseline was an independent predictor of LA reverse remodeling. Copyright Â
Authors: Sung Il Im; Jin Oh Na; Sun Won Kim; Cheol Ung Choi; Jin Won Kim; Hwan Seok Yong; Eung Ju Kim; Seung-Woon Rha; Chang Gyu Park; Hong Seog Seo; Dong Joo Oh; Hong Euy Lim Journal: Tex Heart Inst J Date: 2015-06-01
Authors: Sandro Gelsomino; Fabiana Lucà; Carmelo Massimiliano Rao; Orlando Parise; Laurant Pison; Francis Wellens; Jos Maessen; Mark La Meir Journal: Ann Cardiothorac Surg Date: 2014-01
Authors: Felix Ceelen; Ross J Hunter; Redha Boubertakh; Wieland H Sommer; Marco Armbruster; Richard J Schilling; Steffen E Petersen Journal: Int J Cardiovasc Imaging Date: 2013-09-04 Impact factor: 2.357