ArticleJournal of atrial fibrillation
Posterior Wall Isolation for Atrial Fibrillation: Effects on Echocardiographic Parameters of cardiac function.
Article in Journal of atrial fibrillation. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed, 3 citations in OpenAlex.
- Effect of electrical posterior wall isolation on left atrial mechanical function.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2025Article
- Impact of Left Atrial Ablation on the Atrial Contractile Function: Insights From Intracardiac Echocardiography and Electroanatomical Mapping in Persistent Atrial Fibrillation Ablation.Journal of arrhythmia · 2025Article
- Rationale and Outcomes of Cryoballoon Ablation of the Left Atrial Posterior Wall in Conjunction with Pulmonary Vein Isolation.The Journal of innovations in cardiac rhythm management · 2021Article
Corrections and comments
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Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPosterior wall isolation (PWI) in addition to circumferential pulmonary vein isolation (CPVA) requires more ablation of left atrial tissue. We compared the effect of PWI versus non-PWI methods (CPVA + linear lesions) on echocardiographic parameters of left atrial and left ventricular function.
methodsWe selected patients who had pre and post ablation echocardiogram at our institution. Parameters assessed were: Left ventricular outflow tract velocity time integral (VTI), left ventricular ejection fraction (LVEF), atrial Doppler velocity across mitral valve (A), E/E', and deceleration time.
resultsOf the 72 patients studied, 32.5% had PWA in addition to CPVA. The mean duration between echocardiograms was 650 + 542 days. PWA group had an average postoperative VTI 0.21 + 0.05 vs 0.21 + 0.05 in the non-PWA (p=0.61) group. Average improvement compared to pre ablation parameters: VTI was 0.03 + 0.06 vs 0.008 + 0.05 (p=0.17), postoperative A was 0.49 + 0.19 vs 0.57 + 0.19 (p=0.16), postoperative LVEF was 57.5 + 9.9% vs 57.8 + 10.8 % (p=0.89), with average change in LVEF 1.5 ± 7.8 vs 0.86 ± 9.7 (p=0.78) in PWA and non-PWA groups respectively. There was no significant difference in change in deceleration time or E/E' when comparing the two groups.
conclusionsPWA did not adversely affect echocardiographic parameters of left atrial function or left ventricular systolic or diastolic function when compared to other types of ablation.
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