Transvenous Radiofrequency Ablation Therapy in the Treatment of Arrhythmias: A Single Center Experience

Background/aim Radiofrequency catheter ablation (RFA) is the most effective method of supraventricular tachycardia therapy. Recurrent supraventricular tachycardia causes systolic dysfunction and dilated cardiomyopathy. The aim of this study was to evaluate the long-term alterations of atrial and ventricular functions after RFAof typical atrioventricular nodal reentrant tachycardia (AVNRT). Materials and methods This cross-sectional study included 55 consecutive patients with symptomatic drug-resistant AVNRT who had had an invasive electrophysiology study and RFA. Speckle-tracking–based echocardiographic assessment was performed shortly before and 1 year after the operation. Left ventricle (LV) and right ventricle (RV) peak systolic strain (PSS) and atrial strain measurements were performed. Results RFA successfully eliminatedtachyarrhythmia in all patients. LV apical 4-chamber PSS –20.8% (–24.7 to –16.0) vs. –22.8% (–26.6 to –17.0, P < 0.001), LV apical 2-chamber PSS –21.5% (–26.8 to –10.1) vs. –22.0% (–27.8 to –13.7, P < 0.001), LV global PSS –20.4% (–26.4 to –14.4) vs. –23.0% (–27.1 to –2.3, P < 0.001), RV global PSS –26.0% (–30.0 to –18.0) vs. –26.5% (–32.1 to –19.7, P < 0.001), and peak left atrial longitudinal strain 41.0% (19.0–71.8) vs. 54.0% (25.6–82.0, P < 0.001) were significantly improved 1 year after RFA. Conclusion RFA of AVNRT not only provides relief of palpitations but also improves cardiac functions.

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“…RFA is the first-line therapy of AVNRT [1][2][3]. Recurrent AVNRT attacks may causeventricular dilatation and arrhythmic cardiomyopathy [10,11].…”

Section: Discussionmentioning

confidence: 99%

“…

IntroductionRadiofrequency catheter ablation (RFA) is an effective and accepted treatment strategy in supraventricular tachyarrhythmias [1][2][3]. Recurrent supraventricular tachycardia may cause systolic dysfunction and dilated cardiomyopathy [4].

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confidence: 99%

Evaluation of cardiac functions after catheter ablation of atrioventricular nodal reentrant tachycardia

2021

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“…Among the electrophysiologic sequelae of corrective surgery for congenital heart disease, there are a number of delivery lines favoring reentrant arrhythmias, which associated with recurrence and fibrosis. Radiofrequency catheter ablation trials, that performed to patients who underwent cardiac surgery or had an unsuccessful radiofrequency ablation experience, are challenging and associated with prolonged procedure times which bring high radiation doses with longer fluoroscopy times and high rates recurrences (5) . Recently used cardiac mapping systems provide the association of intracardiac electrical activity with anatomic origin of arrhythmia with high accuracy (6) .…”

Section: Discussionmentioning

confidence: 99%

Principles and Techniques of the Three-Dimensional Electroanatomic Cardiac Mapping Approach in the Treatment of Intractable Atrial Macroreentrant Tachycardia Ablations

Yıldız¹,

Mümin²,

Okşen³

et al. 2018

Kosuyolu Heart Journal

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Introduction: Challenging and intractable macroreentrant atrial tachycardias mostly occur after cardiac surgeries, and the response of such arrhythmias to conventional treatments is poor. Also, arrhytmias with previous unsuccessful ablations are compulsive arrhytmias. This study represents our approach for the ablation of challenging atrial macroreentrant tachycardias. Patients and Methods: Five consecutive patients with atrial flutter and a previous history of cardiac surgery and/or radiofrequency ablation were enrolled to this study. The focal point of the clinical arrhythmia was defined in the CARTO ® and Columbus™ map and the critical isthmus was targeted for ablation. Radiofrequency ablation was performed until the arrhythmia stopped or until a change in cycle length or activation wave front was seen. Results: All the complex atrial macroreentrant tachycardias were arized from the right atrium. Overall, all the cases were successfully mapped and ablated. None of the patients had recurrence even after 6 months of follow-up. The mean (±SD) procedure time was 49.0 ± 22.4 min. Three-dimensional electroanatomic cardiac mapping technologies, including CARTO and Columbus™, are highly effective in revealing atrial arrhytmias and facilitating ablation of the scar-related potential circuits. Conclusion: This study highlights success and usefulness of three-dimensional electroanatomic cardiac mapping in complex atrial macroreentrant tachycardia ablations.

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A fatal case of atrioesophageal fistula following radiofrequency ablation of left atrium and pulmonary veins for atrial fibrillation

Rajapaksha

Cunningham

Rose

2014

Cardiovascular Pathology

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Transvenous Radiofrequency Ablation Therapy in the Treatment of Arrhythmias: A Single Center Experience

Abstract: Introduction:Radiofrequency ablation of tachyarrhythmia is effective in the treatment of tachycardia. In this study, we evaluated the results of radiofrequency catheter ablation of tachyarrhythmia.

Cited by 3 publications

References 7 publications

Evaluation of cardiac functions after catheter ablation of atrioventricular nodal reentrant tachycardia

Evaluation of cardiac functions after catheter ablation of atrioventricular nodal reentrant tachycardia

Principles and Techniques of the Three-Dimensional Electroanatomic Cardiac Mapping Approach in the Treatment of Intractable Atrial Macroreentrant Tachycardia Ablations

A fatal case of atrioesophageal fistula following radiofrequency ablation of left atrium and pulmonary veins for atrial fibrillation

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