Clinical Significance of the Assessment of the Systolic and Diastolic Myocardial Function of the Left Atrium in Patients With Paroxysmal Atrial Fibrillation and Low CHADS2 Index Treated With Catheter Ablation Therapy

2013 ◽  
Vol 111 (7) ◽  
pp. 1002-1011 ◽  
Author(s):  
Daniel A. Morris ◽  
Abdul Parwani ◽  
Martin Huemer ◽  
Alexander Wutzler ◽  
Tarek Bekfani ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Left Atrium ◽  
Clinical Significance ◽  
Paroxysmal Atrial Fibrillation ◽  
Myocardial Function ◽  
Ablation Therapy

scholarly journals Optimal ablation index parameters for radiofrequency ablation therapy of atrial fibrillation

2022 ◽  
Vol 38 (3) ◽  
Author(s):  
Xiaoru Qin ◽  
Xiaofei Jiang ◽  
Qiyan Yuan ◽  
Guangli Xu ◽  
Xianzhi He
Keyword(s):  
Atrial Fibrillation ◽  
Radiofrequency Ablation ◽  
Catheter Ablation ◽  
Paroxysmal Atrial Fibrillation ◽  
Posterior Wall ◽  
Control Group ◽  
Ablation Therapy ◽  
Ablation Index ◽  
Gastrointestinal Discomfort ◽  
Radiofrequency Ablation Therapy

Objective: To explore the optimal ablation index (AI) parameters for radiofrequency catheter ablation (RA) for treating atrial fibrillation (AF). Method: Patients with AF (186) who underwent bilateral PVAI in the Department of Cardiology, Zhuhai People’s Hospital, Guangdong Province, from March 2018 to October 2019 and received catheter ablation as first-round treatment, were grouped according to the received AI. Control group included patients (95) who received the recommended AI ablation (350–400 for posterior wall, 400–450 for non-posterior wall). Patients in optimal AI group were ablated with optimal AI (300–330 for posterior wall, 350–380 for non-posterior wall). Results: Of 186 patients, 66 patients had paroxysmal atrial fibrillation and a mean CHA2DS2-VASc score of 2.83±1.64. Isolation rates of bilateral PVI in both groups were 91.4% and 93.6%, for patients with paroxysmal atrial fibrillation, and 81.7% and 80% for patients with persistent atrial fibrillation (P > 0.05). Left atrial function index (LAFI) decreased under the condition of sinus rhythm at the 3rd and 6th months (P < 0.05). LAFI improvement was significantly better in the optimal AI group than in the control group (P < 0.05). Rates of pain and cough during the ablation, and postoperative gastrointestinal discomfort and use of PPIs were higher in the control group (P < 0.05). Conclusion: Radiofrequency ablation of AF, guided by optimal AI combined with impedance, can minimize atrial injury, prevent atrial failure, promote the recovery of atrial function, reduces intraoperative cough, pain, and postoperative gastrointestinal discomfort and use of PPIs. doi: https://doi.org/10.12669/pjms.38.3.4971 How to cite this:Qin X, Jiang X, Yuan Q, Xu G, He X. Optimal ablation index parameters for radiofrequency ablation therapy of atrial fibrillation. Pak J Med Sci. 2022;38(3):---------. doi: https://doi.org/10.12669/pjms.38.3.4971 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

scholarly journals Catheter Ablation of Paroxysmal Atrial Fibrillation Originating from Non-pulmonary Vein Areas

2018 ◽  
Vol 7 (4) ◽  
pp. 1 ◽  
Author(s):  
Satoshi Higa ◽  
Li-Wei Lo ◽  
Shih-Ann Chen ◽  
◽  
◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Left Atrium ◽  
Paroxysmal Atrial Fibrillation ◽  
Current Knowledge ◽  
Pulmonary Veins ◽  
Cure Rate ◽  
Safety And Efficacy ◽  
Ectopic Beats ◽  
Af Recurrence

Pulmonary veins (PVs) are a major source of ectopic beats that initiate AF. PV isolation from the left atrium is an effective therapy for the majority of paroxysmal AF. However, investigators have reported that ectopy originating from non-PV areas can also initiate AF. Patients with recurrent AF after persistent PV isolation highlight the need to identify non-PV ectopy. Furthermore, adding non-PV ablation after multiple AF ablation procedures leads to lower AF recurrence and a higher AF cure rate. These findings suggest that non-PV ectopy is important in both the initiation and recurrence of AF. This article summarises current knowledge about the electrophysiological characteristics of non-PV AF, suitable mapping and ablation strategies, and the safety and efficacy of catheter ablation of AF initiated by ectopic foci originating from non-PV areas.

The efficacy and safety of cryoballoon catheter ablation in patients with paroxysmal atrial fibrillation

2021 ◽  
Author(s):  
Adil K. Baimbetov ◽  
Kuat B. Abzaliev ◽  
Aiman M. Jukenova ◽  
Kenzhebek A. Bizhanov ◽  
Binali A. Bairamov ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Paroxysmal Atrial Fibrillation ◽  
Efficacy And Safety

Assessment of the relationship between semaphorin4D level and recurrence after catheter ablation in paroxysmal atrial fibrillation

Biomarkers ◽  
2021 ◽  
pp. 1-9
Author(s):  
Veysi Can ◽  
Huseyin Altug Cakmak ◽  
Fahriye Vatansever ◽  
Selcuk Kanat ◽  
Firdevs Aysenur Ekizler ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Paroxysmal Atrial Fibrillation ◽  
The Relationship

scholarly journals Association between functional mitral regurgitation and recurrence of paroxysmal atrial fibrillation following catheter ablation: a prospective cohort study

2021 ◽  
Vol 49 (5) ◽  
pp. 030006052110143
Author(s):  
Fusheng Ke ◽  
Yinhui Huang ◽  
Zhexiu Jin ◽  
Lei Huang ◽  
Qiang Xiong ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Risk Factor ◽  
Cohort Study ◽  
Catheter Ablation ◽  
Mitral Regurgitation ◽  
Confidence Interval ◽  
Paroxysmal Atrial Fibrillation ◽  
Prospective Cohort ◽  
Radiofrequency Catheter Ablation ◽  
Functional Mitral Regurgitation

Objective The present study aimed to investigate the effect of functional mitral regurgitation (FMR) on recurrence of paroxysmal atrial fibrillation (PAF) in patients undergoing radiofrequency catheter ablation. Methods This prospective cohort study comprised 107 patients with PAF. The patients were divided into the FMR and non-FMR groups. FMR was assessed by Doppler echocardiography before index ablation. All patients initially underwent circumferential pulmonary vein isolation (CPVI) and were followed up for 12 months after ablation. PAF, atrial tachycardia, or atrial flutter served as the endpoint indicator. Results The median duration of PAF was 24 (3–60) months. Binary logistic univariate and multivariate analyses showed that FMR was not a risk factor for recurrence of catheter ablation for PAF (hazard ratio=0.758, 95% confidence interval: 0.191–3.004; hazard ratio=0.665, 95% confidence interval: 0.134–3.300, respectively). Kaplan–Meier analysis showed no significant difference in the recurrence rate between the groups. Fifteen (15/107, 14%) cases of PAF were triggered by the pulmonary vein. Three (3/107, 2.8%) cases of PAF were triggered by the superior vena cava. Conclusions FMR is not an independent risk factor for predicting recurrence of catheter ablation for PAF. FMR does not affect patients undergoing radiofrequency catheter ablation for PAF.

scholarly journals Outcome of contact force-guided radiofrequency catheter ablation or second generation cryoballoon ablation for paroxysmal atrial fibrillation: propensity score matched analysis

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
K Ukita ◽  
A Kawamura ◽  
H Nakamura ◽  
K Yasumoto ◽  
M Tsuda ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Propensity Score ◽  
Contact Force ◽  
Paroxysmal Atrial Fibrillation ◽  
Radiofrequency Catheter Ablation ◽  
Second Generation ◽  
Late Recurrence ◽  
Cryoballoon Ablation ◽  
Atrial Tachyarrhythmia

Abstract Background Little has been reported on the outcome of contact force (CF)-guided radiofrequency catheter ablation (RFCA) and second generation cryoballoon ablation (CBA). Purpose The purpose of this study was to compare the outcome of CF-guided RFCA and second generation CBA for paroxysmal atrial fibrillation (PAF). Methods We enrolled the consecutive 364 patients with PAF who underwent initial ablation between September 2014 and July 2018 in our hospital. We compared the late recurrence of atrial tachyarrhythmia more than three months after ablation between RFCA group and CBA group. All RFCA procedures were performed using CF-sensing catheter and all CBA procedures were performed using second generation CB. Results There were significant differences in background characteristics: chronic kidney disease, serum brain natriuretic peptide level, and left ventricular ejection fraction. After propensity score matched analysis (Table), atrial tachyarrhythmia free survival was significantly higher in CBA group than in RFCA group (Figure). Conclusions Second generation CBA showed a significantly lower late recurrence rate compared to CF-guided RFCA. Kaplan-Meier Curve Funding Acknowledgement Type of funding source: None

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