scholarly journals The usefulness of global left atrial strain for predicting atrial fibrillation recurrence after catheter ablation in patients with persistent and paroxysmal atrial fibrillation

2017 ◽  
Vol 110 (8-9) ◽  
pp. 447-455 ◽  
Author(s):  
Xin-Xin Ma ◽  
Yue-Li Zhang ◽  
Bing Hu ◽  
Meng-Ruo Zhu ◽  
Wen-Jun Jiang ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Paroxysmal Atrial Fibrillation ◽  
Left Atrial ◽  
Atrial Fibrillation Recurrence ◽  
Left Atrial Strain ◽  
Atrial Strain

scholarly journals Left atrial strain, intervendor variability, and atrial fibrillation recurrence after catheter ablation: A systematic review and meta-analysis

2020 ◽  
Vol 61 (3) ◽  
pp. 154-164 ◽  
Author(s):  
Dimitrios Mouselimis ◽  
Anastasios S. Tsarouchas ◽  
Eftstathios D. Pagourelias ◽  
Constantinos Bakogiannis ◽  
Efstratios K. Theofilogiannakos ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Systematic Review ◽  
Catheter Ablation ◽  
Left Atrial ◽  
Meta Analysis ◽  
Atrial Fibrillation Recurrence ◽  
Left Atrial Strain ◽  
Atrial Strain

Abstract 5664: Left Atrial Strain In Patients With Atrial Fibrillation: Relationship To Fibrosis By Delayed Enhancement-MRI

Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Suman S Kuppahally ◽  
Robert S Oakes ◽  
Eric N Fish ◽  
Eugene Kholmovski ◽  
Sathya Vijayakumar ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Strain Rate ◽  
Left Atrial ◽  
Delayed Enhancement ◽  
Left Atrial Strain ◽  
Chamber View ◽  
Strain And Strain Rate ◽  
Procedural Success ◽  
Atrial Strain

Introduction: The extent of left atrial (LA) wall fibrosis detected by delayed enhancement (DE)-cardiac MRI prior to catheter ablation of atrial fibrillation (AF) appears to predict procedural success. However, it is currently unknown how the degree of fibrosis affects atrial mechanical function. Methods: Prior to catheter ablation of AF, 31 patients underwent DE-CMRI and 2-dimensional transthoracic echocardiography. 3D segmentation of LA was performed and the degree of fibrosis was determined using a semi-automated quantification algorithm. Longitudinal mid-septal and mid-lateral LA wall velocity, strain and strain rate were measured during ventricular systole from the apical 4-chamber view by velocity vector imaging. Results : There was greater percent of fibrosis as LA maximum (R = 0.4, p = 0.05) and minimum (R=0.52, p = 0.008) volumes increased. Figure shows examples of DE-CMRI and strain curves (C) for two patients: Patient 1(A) with mild fibrosis and patient 2 (B) with extensive fibrosis. Patient 1 shows much larger strain than patient 2. Larger LA volumes correlated inversely with maximal LA mid-lateral systolic wall strain (p < 0.005). The percent fibrosis also correlated inversely with maximal LA mid-lateral systolic wall strain (R=0.56, p < 0.005) and the systolic strain rate (R = 0.58, p = 0.002). Conclusion: LA strain and strain rate can be assessed using standard echocardiographic gray scale images. LA strain is related to both atrial volumes and fibrosis, which are markers of atrial disease progression. This relationship may represent changes in the properties of LA substrate. These novel imaging approaches may be helpful in predicting outcomes in patients with AF.

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