ArticleJournal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing2020
Impact of left atrial appendage occlusion on left atrial function-The LAFIT Watchman study.
Article in Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.
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Who cites it
12 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.
- A systematic review and meta-analysis of the impact of the left atrial appendage closure on left atrial function.Clinical cardiology · 2022Pooled it
- Impact of left atrial appendage closure with or without radiofrequency ablation on cardiac remodeling in atrial fibrillation patients.BMC cardiovascular disorders · 2026Article
- A retrospective cohort and machine learning study on the efficacy, safety, and recurrence prediction of combined EI-VOM and linear ablation in persistent Non-valvular atrial fibrillation.Frontiers in cardiovascular medicine · 2026Article
- Imaging assessment after percutaneous left atrial appendage closure: from immediate to long-term follow-up.European heart journal. Cardiovascular Imaging · 2025Review
- Left atrial appendage closure in conjunction with radiofrequency ablation: Effects on left atrial functioning in patients with paroxysmal atrial fibrillation.Open medicine (Warsaw, Poland) · 2024Article
- Comparison of cardiac function and structure after left atrial appendage occlusion without versus with ablation in patients with non-valvular atrial fibrillation: a retrospective study.International journal of medical sciences · 2024Article
- The effect of different preoperative left atrial appendage emptying speeds on left atrial function in patients with persistent atrial fibrillation after left atrial appendage closure combined with catheter ablation.BMC cardiovascular disorders · 2022Article
- Abnormal left atrial body stiffness is predicted by appendage size: impact of appendage occlusion on left atrial mechanics assessed by pressure-volume analysis.American journal of physiology. Heart and circulatory physiology · 2022Article
- Impact of Left Atrial Appendage Closure Combined with Catheter Ablation on Endocrine and Mechanical Cardiac Function in Patients with Atrial Fibrillation.Journal of interventional cardiology · 2022Article
- Surgical clip closure of the left atrial appendage.Journal of cardiovascular electrophysiology · 2021Review
- Effect of Left Atrial Appendage Closure in Combination With Catheter Ablation on Left Atrial Function for Persistent Atrial Fibrillation.Frontiers in cardiovascular medicine · 2021Article
- Risks and Benefits of Removal of the Left Atrial Appendage.Current cardiology reports · 2020Review
Corrections and comments
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Authors and funding
11 authors at 6 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundLeft atrial (LA) strain and strain rate (SR) analysis by two-dimensional speckle tracking echocardiography is a novel way of LA function assessment. From prior study, we know that LA appendage closure with LARIAT appears to improve LA function.
objectiveThe purpose of this study was to assess the impact of LAA closure via Watchman device on LA function via strain and volumetric analyses using two-dimensional speckle tracking echocardiography (2D-STE).
methodsTwenty-five patients who underwent Watchman device implantation (WDI) were included. LA function parameters (volumetric, strain indices) were calculated from apical four chamber views with the reference point set at QRS using 2D-STE before and after WDI. LA expansion index, strain and strain rate during ventricular systole represent LA reservoir function. Passive emptying fraction, strain and strain rate during early ventricular diastole represent LA conduit function.
resultsMean age was 76 ± 6.9 years with 60% males. There was significant improvement in conduit function (LA passive emptying fraction; post 28.6 (21.9-35.9) vs pre 21.0 (13.8-34.7), p = 0.032), reservoir function (LA expansion index; post 75.3 (52.3-98.0) vs pre 58.1 (37.8-85.2), p = 0.026), and booster function (LA active emptying fraction; post 13.3 (9.7-29.9) vs pre 12.6 (8.8-25.5), p = 0.04) by volumetric indices. No significant improvement was noted with strain indices in conduit function (SRe; post - 0.56 (0.43-0.93) vs pre - 0.58 (0.46-0.87); p = 0.518) and reservoir function (SRs; post + 0.58 (0.28-0.40) vs pre + 0.52 (0.35-0.86); p = 0.851).
conclusionsWDI resulted in discrepancy of volumetric and strain indices in LA function assessment.
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