Relationship between dominant frequency, organization index, and left atrial size in patients with atrial fibrillation

2020 ◽  
Vol 31 (12) ◽  
pp. 3159-3165
Author(s):  
You‐jung Choi ◽  
Jang J. Sohn ◽  
Soonil Kwon ◽  
So‐Ryoung Lee ◽  
Myung‐Jin Cha ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Left Atrial ◽  
Dominant Frequency ◽  
Left Atrial Size ◽  
Atrial Size

scholarly journals The Effect of Catheter Ablation on Left Atrial Size and Function for Patients with Atrial Fibrillation: An Updated Meta-Analysis

PLoS ONE ◽  
2015 ◽  
Vol 10 (7) ◽  
pp. e0129274 ◽  
Author(s):  
Bin Xiong ◽  
Dan Li ◽  
Jianling Wang ◽  
Laxman Gyawali ◽  
Jinjin Jing ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Left Atrial ◽  
Meta Analysis ◽  
Left Atrial Size ◽  
Atrial Size ◽  
And Function

scholarly journals 312 Correlation between Atrial Fibrillation Burden and Changes in Indices of Left Atrial Size and Function

2020 ◽  
Vol 29 ◽  
pp. S174
Author(s):  
D. Makarious ◽  
A. Bhat ◽  
S. Khanna ◽  
H. Chen ◽  
A. Drescher ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Left Atrial ◽  
Left Atrial Size ◽  
Atrial Size ◽  
Atrial Fibrillation Burden ◽  
And Function

The association of left atrial size and occurrence of atrial fibrillation: A prospective cohort study from the Canadian Registry of Atrial Fibrillation

2004 ◽  
Vol 148 (4) ◽  
pp. 649-654 ◽  
Author(s):  
Ratika Parkash ◽  
Martin S. Green ◽  
Charles R. Kerr ◽  
Stuart J. Connolly ◽  
George J. Klein ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Cohort Study ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Left Atrial ◽  
Left Atrial Size ◽  
Atrial Size

scholarly journals HOLTER MONITORING AND ECHOCARDIOGRAPHY FOR PREDICTING THE EFFECTIVENESS OF PULMONARY VIEN ISOLATION IN PATIENTS WITH PAROXYSMAL AND PERSISTENT ATRIAL FIBRILLATION

2018 ◽  
Vol 7 (3) ◽  
pp. 12-23
Author(s):  
A. V. Tregubov ◽  
Yu. V. Shubik
Keyword(s):  
Atrial Fibrillation ◽  
Left Atrial ◽  
Persistent Atrial Fibrillation ◽  
Holter Monitoring ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Left Atrial Size ◽  
Ventricular Ejection Fraction ◽  
Atrial Size ◽  
The Impact

Aim. To evaluate the impact of the atrial ectopic activity and left ventricular diastolic dysfunction on predicting the effectiveness of pulmonary vein isolation (PVI) in patients with paroxysmal and persistent atrial fibrillation (AF).Methods. 54 patients with paroxysmal and persistent AF and the normal left ventricular ejection fraction were included in the study. Patients underwent Holter monitoring and echocardiography prior to the intervention to identify the predictors of successful PVI. The follow-up was 12 months after the indexed procedure. The effectiveness of treatment was assessed from the third month of the postoperative period. The criterion of the successful treatment was the absence of the AF paroxysms lasting more than 30 seconds, confirmed by Holter, diurnal and / or multi-day monitoring. The Student's t-test was used to assess the reliability of the differences between the variables characterizing the treatment results in the study groups. The discriminant analysis was performed to develop an algorithm that allows predicting the PVI result. A p value <0.05 was considered statistically significant.Results. Premature atrial contraction over 70 per hour can be considered as the predictor of the successful PVI in patients with normal left atrial size. The severe LA enlargement should be considered as a predictor of poor ablation efficacy. The obtained discriminant function allows predicting the effectiveness of PVI in patients with paroxysmal and persistent AF depending on Holter monitoring and echocardiography. Its sensitivity is high for both predicting success and failure of the intervention.Conclusion. Holter monitoring and echocardiography allow predicting the effectiveness of PVI. The intervention's efficacy in the groups of patients with severe LA enlargement and the combination of normal left atrial size with over 70 PAC per hour should be addressed in the further studies.

Abstract 15901: Radiofrequency Ablation for Persistent Atrial Fibrillation: Earlier Catheter-based Interventions are associated With Better Outcomes and in Direct Association With Markers of Pathways of Atrial Remodeling

Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Amr F Barakat ◽  
Ayman A Hussein ◽  
Mohammed Bassiouny ◽  
Ali Hakim ◽  
Shadi Al Halabi ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Left Atrial ◽  
Persistent Atrial Fibrillation ◽  
Atrial Remodeling ◽  
Success Rates ◽  
Left Atrial Size ◽  
Ablation Time ◽  
Atrial Size ◽  
Direct Association ◽  
First Diagnosis

Introduction: Persistent atrial fibrillation (PerAF) ablation has been associated with significant recurrence rates which could reflect progressive AF-related atrial remodeling. We hypothesized that the first-diagnosis to ablation time for PerAF is a major determinant of success rates and in direct association with pathways of atrial remodeling. Methods: Two-year outcomes were assessed in 1241 patients undergoing first time ablation of PerAF between January 2005 and December 2012 at our institution. The time intervals between the first diagnosis of PerF and the ablation procedures were determined. Patients had echocardiograms and measures of B-type natriuretic peptide (BNP) and C-reactive protein (CRP) before the ablation procedures. During ablations, patients with atrial scarring by voltage were identified. Results: The median time-to-ablation since the first PerAF diagnosis was 3 years (interquartile range 1-6.5). With longer diagnosis-to-ablation time (based on quartiles), there was a significant increase in BNP levels (p=0.01), CRP levels (p<0.0001), left atrial size (p=0.03) and scarring (p=0.04). Atrial arrhythmia recurred after a single ablation in 555 patients (44.7%); and 364 (29.3%) underwent repeat ablations. At last follow-up, 1005 patients (81.0%, 390 on antiarrhythmic medications) were either arrhythmia free or had their arrhythmia controlled. In Cox Proportional Hazard analyzes, BNP levels, CRP levels, left atrial size and scarring were associated with arrhythmia recurrence. The diagnosis-to-ablation time had the strongest association with success rates which persisted in multivariate Cox analyzes (HR for recurrence per +1Log diagnosis-to-ablation time 1.25, 95%CI 1.11-1.42, p<0.0001; 4th vs. 1st quartile 2.27, 95%CI 1.52-3.47, p<0.0001). Conclusions: The success rates with PerAF ablation are highest with early intervention, that is ablation before the progression of atrial remodeling.

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