ArticleThe international journal of cardiovascular imaging2026
Right atrioventricular coupling index predicts adverse outcomes in patients with non-valvular atrial fibrillation undergoing catheter ablation: an echocardiography insight.
Article in The international journal of cardiovascular imaging, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
It is observed that some atrial fibrillation (AF) patients develop right heart enlargement and severe right heart failure, which affect the prognosis. An abnormal right atrioventricular coupling index (RACI) indicates that AF has led to significant right atrial and right ventricular dysfunction. However, right atrial (RA) remodeling in AF patients is rarely assessed and data on the prognosis of RA is limited. This study aims to determine if the RACI can be used to predict the risk of long-term adverse outcomes in a cohort of patients with non-valvular AF after catheter ablation (CA). A total of 123 non-valvular AF patients who underwent CA in our center were enrolled in this retrospective study. Conventional and speckle tracking echocardiography (STE) were performed for AF patients before CA. Patients were followed up with until April 2025. The adverse outcomes were the composite of atrial tachyarrhythmia recurrence (ATa), stroke or transient ischemic attack (TIA), AF-associated hospitalization, pacemaker insertion and cardiovascular death. Logistic regression analysis was used to determine the optimal cutoff value of correlates for predicting adverse events. The median follow-up time was 5.3(1.6-5.5) years. Among the 123 AF patients, 69 experienced adverse outcomes. Multivariable logistic regression analysis showed that RACI and left atrial ejection fraction (LAEF) were the independent predictors of adverse events (95% CI, 0.643-0.806; P < 0.0001 and 95% CI, 0.628-0.795; P < 0.0001; respectively). The optimal cutoff values of RACI and LAEF were 70.97% and 35%, respectively. Spearman's correlation analysis showed that RACI was negatively correlated with RA reservoir strain and RA boost strain (r=-0.583, P < 0.001; r=-0.572, P < 0.001, respectively), and LAEF was positively correlated with LA reservoir strain and LA boost strain (r = 0.859, P < 0.001; r = 0.765, P < 0.001, respectively). Increased RACI and impaired LAEF are strongly associated with long-term outcomes, with RACI showing better independent predictive value.
Indexed as
Identifiers
41549195What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.