Radiofrequency catheter ablation of a sporadically occurring ventricular arrhythmia originating from the right ventricular outflow tract: A novel arrhythmia induction strategy involving atrial fibrillation provocation

Koya, Taro; Temma, Taro; Watanabe, Masaya; Kamada, Rui; Nagai, Toshiyuki; Anzai, Toshihisa

doi:10.1016/j.hrcr.2020.03.018

Cited by 3 publications

(3 citation statements)

References 8 publications

(9 reference statements)

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“…The authors speculate that AF also predisposes the ventricular myocardium to arrhythmias and facilitate PVC recurrence through similar mechanisms discussed above. This hypothesis is supported by one case report describing that induced AF during PVC ablation could increase the frequency of symptomatic right ventricular outflow tract PVCs 14 . It is important to note that patients with concurrent PVC and AF in this study had slightly decreased LVEF compared to those without.…”

Section: Discussionsupporting

confidence: 82%

“…This hypothesis is supported by one case report describing that induced AF during PVC ablation could increase the frequency of symptomatic right ventricular outflow tract PVCs. 14 It is important to note that patients with concurrent PVC and AF in this study had slightly decreased LVEF compared to those without. Studies have shown that the frequency of PVCs can correlate with the extent of LV dysfunction.…”

Section: Af and Pvc Ablationmentioning

confidence: 64%

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Prevalence of atrial fibrillation and procedural outcome in patients undergoing catheter ablation for premature ventricular complexes

Zou

Biase

Mohanty

et al. 2022

Cardiovasc electrophysiol

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Introduction Atrial fibrillation (AF) and premature ventricular complexes (PVC) are common arrhythmias. We aimed to investigate AF prevalence in patients with PVC and its impact on PVC ablation outcomes. Methods Consecutive patients undergoing PVC ablation at a single institution between 2016 and 2019 were included and prospectively followed for 2 years. Patients with severe valvular heart disease, hyperthyroidism, malignancy, alcohol use disorder and advanced renal/hepatic diseases were excluded. Twelve‐lead electrocardiograms were used to diagnose AF and assess PVC morphology. All PVCs were targeted for ablation using 4‐mm irrigated‐tip catheters at standardized radiofrequency power guided by 3‐D mapping and intracardiac echocardiography. Patients were followed with remote monitoring, device interrogations and office visits every 6 months for 2 years. Detection of any PVCs in follow‐up was considered as recurrence. Results A total of 394 patients underwent PVC ablation and 96 (24%) had concurrent AF. Patients with PVC and AF were significantly older (68.2 ± 10.8 vs. 58.3 ± 15.8 years, p < .001), had lower LV ejection fraction (43.3 ± 13.3% vs. 49.6 ± 12.4%, p < .001), higher CHA2DS2‐VASc (2.8 ± 1.3 vs. 2.0 ± 1.3, p < .001) than those without. PVCs with ≥2 morphologies were detected in 60.4% and 13.7% patients with vs without AF (p < .001). At 2‐year follow‐up, PVC recurrence rate was significantly higher in patients with vs without AF (17.7% vs. 9.4%, p = .02). Conclusion AF was documented in 1/4 of patients undergoing PVC ablation and was associated with lower procedural success at long‐term follow‐up. This was likely attributed to older age, worse LV function and higher prevalence of multiple PVC morphologies in patients with concurrent AF.

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Section: Discussionsupporting

confidence: 82%

Section: Af and Pvc Ablationmentioning

confidence: 64%

Prevalence of atrial fibrillation and procedural outcome in patients undergoing catheter ablation for premature ventricular complexes

Zou

Biase

Mohanty

et al. 2022

Cardiovasc electrophysiol

View full text Add to dashboard Cite

show abstract

“…In 2010, Venkataraman and Strickberger 4 described a patient without ventricular pre-excitation who received a successful implantable cardioverter-defibrillator (ICD) shock for VF that developed after an R-on-T event during AF. In 2020, Koya and colleagues 5 reported an increase in premature ventricular complex and nonsustained VT frequency after induction of AF, which facilitated catheter ablation of idiopathic VT from the right ventricular outflow tract (OT). Herein, I describe the first report where successful catheter ablation of the cavotricuspid isthmus for typical AFL also resulted in resolution of VT.…”

Section: Introductionmentioning

confidence: 99%

Resolution of ventricular tachycardia following cavotricuspid isthmus ablation for atrial flutter: Potential implications of cross-chamber induction on catheter ablation strategies

Wang

2023

HeartRhythm Case Reports

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Outflow tract ventricular arrhythmias following catheter ablation of atrial fibrillation: What is the true effect?

Wang

2024

Cardiovasc electrophysiol

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Radiofrequency catheter ablation of a sporadically occurring ventricular arrhythmia originating from the right ventricular outflow tract: A novel arrhythmia induction strategy involving atrial fibrillation provocation

Cited by 3 publications

References 8 publications

Prevalence of atrial fibrillation and procedural outcome in patients undergoing catheter ablation for premature ventricular complexes

Prevalence of atrial fibrillation and procedural outcome in patients undergoing catheter ablation for premature ventricular complexes

Resolution of ventricular tachycardia following cavotricuspid isthmus ablation for atrial flutter: Potential implications of cross-chamber induction on catheter ablation strategies

Outflow tract ventricular arrhythmias following catheter ablation of atrial fibrillation: What is the true effect?

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