Assessment of left atrial remodeling in paroxysmal atrial fibrillation with speckle tracking echocardiography: a study with an electrophysiological mapping system
| Autor: | Zheng Li, Xuedong Shen, Yi-lin Chen, Xin-Hua Wang, Wei Wang, Zhiqing Qiao, Yu Kang, Jun Pu |
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| Rok vydání: | 2018 |
| Předmět: |
Male
medicine.medical_specialty Paroxysmal atrial fibrillation medicine.medical_treatment Clinical Decision-Making Speckle tracking echocardiography 030204 cardiovascular system & hematology Electrocardiography 03 medical and health sciences 0302 clinical medicine Predictive Value of Tests Left atrial Internal medicine Atrial Fibrillation medicine Humans Radiology Nuclear Medicine and imaging Heart Atria 030212 general & internal medicine Cardiac imaging Aged Retrospective Studies business.industry Atrial fibrillation Atrial Remodeling Odds ratio Middle Aged Ablation medicine.disease Fibrosis Echocardiography Doppler Electrophysiology Catheter Ablation Cardiology Atrial Function Left Female Electrophysiologic Techniques Cardiac Cardiology and Cardiovascular Medicine business |
| Zdroj: | The International Journal of Cardiovascular Imaging. 35:451-459 |
| ISSN: | 1573-0743 1569-5794 |
| Popis: | This study aimed to evaluate left atrial (LA) remodeling and fibrosis in paroxysmal atrial fibrillation (AF) using speckle tracking echocardiography (STE) based on the findings with radiofrequency catheter ablation (RFCA) so as to predict atrial remodeling prior to ablation. A total of 40 patients with paroxysmal AF were enrolled and divided into two groups based on LA bipolar voltage detected during RFCA: those with low-voltage zone (LVZ) (LV group, n = 19) and those without LVZ (non-LV group, n = 21). The segmental and global LA reservoir, conduit and contractile strain (es, ee, ea) were analyzed using two-dimensional STE before RFCA. The segmental and global es, ee, ea (%) decreased in the LV group. Especially, the es in anteroseptal upper (18.32 ± 7.94 vs. 31.61 ± 9.39) and lower segments (16.60 ± 7.23 vs. 29.23 ± 9.81), posteroseptal upper (22.24 ± 6.65 vs. 32.23 ± 10.57) and lower segments (18.24 ± 6.49 vs. 26.40 ± 7.12), and the global es (23.85 ± 6.74 vs. 30.48 ± 8.67) significantly decreased in the LV group than in the non-LV group (all P |
| Databáze: | OpenAIRE |
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