Left Atrial Contractility is Preserved After Successful Circumferential Pulmonary Vein Ablation in Patients with Atrial Fibrillation

Abstract

LAmax volume reduction following CPVA occurs regardless of the clinical efficacy of the procedure, whereas mean LAmin volume only decreased in patients without recurrences. LA EF was preserved or even increased in most patients with successful CPVA.

Left Atrial Function After Radiofrequency Catheter Ablation of Atrial Fibrillation – Can Pre-Ablation Function Predict Contractile Improvement During Follow-up? –

“…23- 25 In the present study atrial function recovery did not seem to be affected by the procedure efficacy (of eliminating the arrhythmia), possibly because of the lower rate of recurrence and the reduction of arrhythmic burden even in patients with AF recurrence.…”

Fracture of the GORE HELEX septal occluder: Associated factors and clinical outcomes

“…The challenge in predictive modeling stems from the limited overall understanding of the in vivo boundary conditions associated with the dynamic change in pressure and motion in the atria and atrial septum. Understanding of atrial septal motion has improved by the advent of newer imaging modalities such as three-dimensional echocardiography and cardiac MRI [28][29][30][31]. Further refinement of motion and force measurements will lead to improvements in the predictive capabilities of finite element analysis and the in vitro tests associated with cardiac device design.…”

Left atrial wall thickness in paroxysmal atrial fibrillation by multislice-CT is initial marker of structural remodeling and predictor of transition from paroxysmal to chronic form

“…These phenomena are thought to be due to the presence of atrial injury over an extensive area. Furthermore, Perea et al [42] reported that LAEF was preserved or increased in patients without arrhythmia recurrences after circumferential pulmonary vein ablation for AF but was decreased in those with arrhythmia recurrences. Thus, PAF patients with low LAEF may have extensive atrial damage due to atrial fibrosis, which may be a predisposing factor for the transition from PAF to CAF.…”

“…Several studies have shown that PV isolation using radiofrequency ablation for AF can be effective in improving LA function [24,39,42,[67][68][69]. However, extensive RFCA and the MAZE procedure may potentially attenuate atrial mechanical function because of atrial scarring and loss of atrial myocardium caused by these techniques.…”

“…LA ejection fraction (LAEF) was obtained as follows: LAEF = (LA maximal volume−LA minimal volume)/LA maximal volume × 100. LAEF has been regarded as a good parameter for the evaluation of LA mechanical function [39][40][41][42]. In patients with CAF, only the LA maximal volume was calculated at end-ventricular systole.…”