Blood flow volume of left atrial appendage measured by magnetic resonance imaging is improved after radiofrequency catheter ablation of atrial fibrillation

Min, Kyongjin; Hwang, Sung Ho; Shim, Jaemin; Choi, Yun Young; Choi, Ha Young; Choi, Jong Il; Oh, Yu Whan; Kim, Young Hoon

doi:10.1111/jce.14879

Cited by 4 publications

(4 citation statements)

References 23 publications

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“…LAAFV is regarded as a reliable predictor of AF recurrence because it reflects the comprehensive LAA hemodynamics and the severity of LA remodeling ( 45 ). Similar to the study by Kim et al ( 46 ), we found that patients with decreased LAAFV before ablation were more likely to experience AF recurrence. Therefore, it is reasonable to include these regular predictors in the nomogram.…”

Section: Discussionsupporting

confidence: 90%

Incremental predictive utility of a radiomics signature in a nomogram for the recurrence of atrial fibrillation

Zheng

Zhang

Huang

et al. 2023

Front. Cardiovasc. Med.

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BackgroundRecurrence of atrial fibrillation (AF) after catheter ablation (CA) remains a challenge today. Although it is believed that evaluating the structural and functional remodeling of the left atrium (LA) may be helpful in predicting AF recurrence, there is a lack of consensus on prediction accuracy. Ultrasound-based radiomics is currently receiving increasing attention because it might aid in the diagnosis and prognosis prediction of AF recurrence. However, research on LA ultrasound radiomics is limited.ObjectiveWe aim to investigate the incremental predictive utility of LA radiomics and construct a radiomics nomogram to preoperatively predict AF recurrence following CA.MethodsA training cohort of 232 AF patients was designed for nomogram construction, while a validation cohort (n = 100) served as the model performance test. AF recurrence during a follow-up period of 3–12 months was defined as the endpoint. The radiomics features related to AF recurrence were extracted and selected to create the radiomics score (rad score). These rad scores, along with other morphological and functional indicators for AF recurrence, were included in the multivariate Cox analysis to establish a nomogram for the prediction of the likelihood of AF recurrence within 1 year following CA.ResultsIn the training and validation cohorts, AF recurrence rates accounted for 32.3% (75/232) and 25.0% (25/100), respectively. We extracted seven types of radiomics features associated with AF recurrence from apical four-chamber view echocardiography images and established a rad score for each patient. The radiomics nomogram was built with the rad score, AF type, left atrial appendage emptying flow velocity, and peak atrial longitudinal strain. It outperformed the nomogram building without the rad score in terms of the predictive efficacy of CA outcome and showed favorable performance in both cohorts.ConclusionWe revealed the incremental utility of a radiomics signature in the prediction of AF recurrence and preliminarily developed and validated a radiomics nomogram for identifying patients who were at high risk of post-CA recurrence, which contributed to an appropriate management strategy for AF.

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Section: Discussionsupporting

confidence: 90%

Incremental predictive utility of a radiomics signature in a nomogram for the recurrence of atrial fibrillation

Zheng

Zhang

Huang

et al. 2023

Front. Cardiovasc. Med.

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“…Not all de novo diagnoses of cardiac arrhythmia lead to therapeutic interventions, but still, important clinical decisions can be made. A diagnosis of AF can lead to anticoagulation, if indicated, to prevent ischemic stroke, or RFCA to eliminate AF itself [ 17 , 18 , 19 ]. Detection of PSVT or VT can also lead to successful treatment of the disease via RFCA.…”

Section: Discussionmentioning

confidence: 99%

A Watch-Type Electrocardiography Is a Reliable Tool for Detecting Paroxysmal Cardiac Arrhythmias

Choi

Kim

Min

et al. 2022

JCM

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Background: A substantial proportion of cardiac arrhythmias are paroxysmal in nature, and 12-lead electrocardiography (ECG) and Holter monitoring often fail to detect paroxysmal arrhythmias. We designed and evaluated a watch-type, electrocardiograph-recording, wearable device (w-ECG) to overcome the limitations of 12-lead ECG and Holter monitoring. Methods: We prospectively enrolled 96 patients with symptoms assumed to be related to cardiac arrhythmias. Electrocardiography recording was performed with both the w-ECG and Holter monitoring. Detection of any arrhythmia was the primary outcome endpoint and was compared between the w-ECG and Holter monitoring. Results: Any arrhythmia was detected in 51 (53.1%) and 27 (28.1%) patients by the w-ECG and Holter monitoring, respectively (odds ratio (OR) = 2.9, p < 0.001). The w-ECG was superior to Holter monitoring for the detection of clinically significant arrhythmias (excluding atrial premature contraction, ventricular premature contraction, and non-sustained atrial tachyarrhythmia) (OR = 2.34, p = 0.018). In 27 (28.1%) patients, cardiac arrhythmias were detected only by the w-ECG, with atrial fibrillation being the most frequent case (13 patients). Based on ECGs recorded by using the w-ECG, 17 patients (17.7%) received therapeutic interventions, including radiofrequency catheter ablation. Conclusions: The w-ECG is capable of recording ECGs of good quality, with a discernable P wave and distinguishable QRS morphology. The ability of the w-ECG to detect cardiac arrhythmias was significantly better than that of Holter monitoring, and a significant proportion of patients received therapeutic intervention based on ECGs recorded by the w-ECG.

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“…25 26 In addition, the experimental evidence also implied that patients with decreased LAA function prior to ablation are more likely to relapse. 27 LAAFV reflects the comprehensive LA function and severity of LA remodelling and has been considered as a reliable predictor of AFR. 28 GLS measured by STE for the assessment of LA reservoir function has showed its prognostic value in predicting the recurrent of AF, as it provides characterisation and quantification of LA myocardial deformation, including the compliance of the atrial wall as well as myocardial fibrosis.…”

Section: Discussionmentioning

confidence: 99%

Incremental predictive value of left atrial strain and left atrial appendage function in rhythm outcome of non-valvular atrial fibrillation patients after catheter ablation

Wang

Lin

2021

Open Heart

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ObjectiveThe purpose of this study was to develop a non-invasive and convenient nomogram based on speckle tracking echocardiography, left atrial appendage function and clinical factors to predict the risk of atrial fibrillation (AF) recurrence after catheter ablation.MethodsA total of 124 prospectively consecutive patients with AF treated with catheter ablation in our hospital was retrospectively analysis. Baseline echocardiographic parameters were measured by using transthoracic and transesophageal echocardiography before ablation. Multivariate analysis was performed for selecting predictors for a nomogram and internal validation and calibration were evaluated by the bootstep method.ResultsDuring the follow-up of 12±3 months, 41 patients (33.1%) occurred AF recurrence after catheter ablation, while 83 patients (66.9%) had maintained sinus rhythm. Four predictors (AF type, left atrial appendage emptying flow velocity, left Atrial maximal volumes index and global longitudinal strain) with the P<0.5 was selected into the nomogram according to multivariate findings. Internal validation by bootstrapping with 1000 resamples was determined C-index of the nomogram for prediction AF recurrence was 0.901, which showed optimal discrimination and calibration of the established nomogram.ConclusionsNomogram based on echocardiography and clinical characteristics had good predictive performance for the possibility of AF recurrence, which providing practical guidance for individualised management of patients with AF after catheter ablation.

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Blood flow volume of left atrial appendage measured by magnetic resonance imaging is improved after radiofrequency catheter ablation of atrial fibrillation

Cited by 4 publications

References 23 publications

Incremental predictive utility of a radiomics signature in a nomogram for the recurrence of atrial fibrillation

Incremental predictive utility of a radiomics signature in a nomogram for the recurrence of atrial fibrillation

A Watch-Type Electrocardiography Is a Reliable Tool for Detecting Paroxysmal Cardiac Arrhythmias

Incremental predictive value of left atrial strain and left atrial appendage function in rhythm outcome of non-valvular atrial fibrillation patients after catheter ablation

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