Slow Pathway Radiofrequency Ablation Using Magnetic Navigation: A Description of Technique and Retrospective Case Analysis

Bhaskaran, Abhishek; Albarri, Maha; Ross, Neil; Raisi, Sara Al; Samanta, Rahul; Roode, Leonette; Nadri, F.; Ng, Jin Aun; Thomas, Stuart P.; Kovoor, Pramesh

doi:10.1016/j.hlc.2017.01.007

Cited by 6 publications

(7 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several previous investigations reported a longer distance from His to the successful ablation point than our findings. Bhaskaran et al reported that the distance from His to successful ablation was 26.4 ± 8.8 mm in LAO, which was more than double our result. Although we could not determine why this distance was so different between the two investigations, the RF power applied was at least partially responsible.…”

Section: Discussionsupporting

confidence: 54%

“…Although we could not determine why this distance was so different between the two investigations, the RF power applied was at least partially responsible. Bhaskaran et al applied RF with a power of 40 to 50 W and a maximum temperature of 70℃ using a nonirrigated catheter whereas the RF power was 15 to 30 W in our study. An investigation conducted with similar RF power to ours reported that the distance from His to successful ablation was 11.6 ± 4.7 mm, which was almost the same result as ours …”

Section: Discussionmentioning

confidence: 84%

“…Following the development of the 3D mapping system, many kinds of arrhythmic disease became easier to ablate. Although previous studies on AVNRT with and without the 3D mapping system showed the distance from the His potential to the successful ablation point, information concerning the borderline between areas of appropriate JR and excessively fast JR was not available. If the borderline could be clarified and marked on the 3D mapping system, a more precise point for the successful ablation of AVNRT could be identified, and the ablation procedure could be conducted with improved safety and success.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A safe and simple approach to avoid fast junctional rhythm during ablation in patients with atrioventricular nodal reentrant tachycardia

Tachibana

Banba

Matsumoto

et al. 2019

Cardiovasc electrophysiol

View full text Add to dashboard Cite

Introduction Fast junctional rhythm (JR) during slow pathway modification for atrioventricular nodal reentrant tachycardia (AVNRT) is a predictor of serious atrioventricular block. This study investigated the boundary to avoid fast JR during ablation with three‐dimensional (3D) electroanatomical mapping in AVNRT patients. Methods and Results Participants were 129 consecutive patients with common AVNRT who received anatomical ablation to an antegrade slow pathway at our institution between August 2013 and March 2019. Successfully ablated sites with JR were evaluated in terms of distances and angles in the left and right anterior oblique views (LAO and RAO, respectively) to the proximal His bundle (His) site using 3D mapping. We divided JR by heart rate: JR1 ≥150 bpm and JR2 <150 bpm. Average age was 61 ± 16 years; 41.1% of patients were male. The distance from the most proximal His to the JR1 and JR2 site was not significantly different (11.9 ± 4.4 vs 10.7 ± 4.5 mm, P = .24). JR1 predominantly appeared closer to the left ventricle than JR2 in LAO (110.5 ± 19.1° vs 77.5 ± 18.6°, P < .01), and was more posterior from the proximal His in RAO (30.8% vs 6.8%, P < .01). The vertical line drawn down from the proximal His in the LAO view was a good indicator of JR1 appearance (sensitivity and specificity 84.6% and 81.6%, respectively). Conclusion The vertical line drawn down from the proximal His in the LAO view can be employed as a boundary to avoid fast JR during ablation in AVNRT.

show abstract

Section: Discussionsupporting

confidence: 54%

Section: Discussionmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A safe and simple approach to avoid fast junctional rhythm during ablation in patients with atrioventricular nodal reentrant tachycardia

Tachibana

Banba

Matsumoto

et al. 2019

Cardiovasc electrophysiol

View full text Add to dashboard Cite

show abstract

“…Several previous investigations reported a longer distance from the His to the successful ablation point than our findings indicated. Bhaskaran et al reported that the distance from the His to the successful ablation point was 26.4 ± 8.8 mm in LAO view, 12 which was more than double the length that we observed. Although we could not determine why this distance was so different between the two investigations, the RF power applied was at least partially responsible.…”

Section: Discussionsupporting

confidence: 49%

“…Although we could not determine why this distance was so different between the two investigations, the RF power applied was at least partially responsible. Bhaskaran et al applied RF with a power of 40‐50 W and a maximum temperature of 70°C using a nonirrigated catheter, 12–14 whereas the RF power ranged from 15 to 30 W in our study. An investigation conducted with similar RF power to ours reported that the distance from the His to successful ablation was 11.6 ± 4.7 mm, which was consistent with our results 15 …”

Section: Discussionmentioning

confidence: 86%

Effectiveness of a 3D mapping benchmark for ablation in patients with atrioventricular nodal reentrant tachycardia

Yamamoto

Tachibana

Banba

et al. 2020

Pacing Clinical Electrophis

View full text Add to dashboard Cite

Background: Avoiding excessively fast junctional rhythm (JR) during slow pathway (SP) modification for atrioventricular nodal reentrant tachycardia (AVNRT) helps prevent serious atrioventricular block. This study investigated the usefulness of a predictive ablation point that lies near the boundary line between appropriate and excessively fast JRs with three-dimensional (3D) electroanatomical mapping in AVNRT patients. Methods: Participants were 141 consecutive patients with common AVNRT who received anatomical ablation to an antegrade SP at our institution between August 2013 and December 2019. Patients were divided into two groups: Group A, treated using a location marker that predicts successful ablation sites in a 3D mapping system, and Group B, treated prior to the development of this marker and therefore without it. Results: The average age was 61.9 ± 16.9 years, and 41.1% of patients were male. Excessively fast JRs appeared less frequently in Group A than in Group B, though this difference did not reach significance. The distance from the His bundle to the successful ablation point was significantly longer in Group A than in Group B (13.4 ± 4.5 vs 10.8 ± 4.4 mm, P < .01). The number of ablations near the successful ablation point was significantly lower in Group A (6.5 ± 5.2 vs 11.4 ± 9.9, P < .01), and a greater number of accelerated JRs at the successful ablation point were observed in Group A (46.9 ± 29.2 vs 32.8 ± 19.2, P < .01). Conclusion: Using our benchmark for a predictive successful ablation point in 3D mapping simplifies and improves common AVNRT ablation procedures. K E Y W O R D S atrioventricular nodal reentrant tachycardia, catheter ablation, junctional rhythm, slow pathway modification, three-dimensional mapping system the location of the final successful ablation point as a benchmark in a 3D mapping system and reported its relation to His potential. 8

show abstract

Case 7

Mureşan

Bouar

Halbwachs³

et al. 2022

Clinical Cases in Cardiac Electrophysiology: Supraventricular Arrhythmias

View full text Add to dashboard Cite

Slow Pathway Radiofrequency Ablation Using Magnetic Navigation: A Description of Technique and Retrospective Case Analysis

Cited by 6 publications

References 20 publications

A safe and simple approach to avoid fast junctional rhythm during ablation in patients with atrioventricular nodal reentrant tachycardia

A safe and simple approach to avoid fast junctional rhythm during ablation in patients with atrioventricular nodal reentrant tachycardia

Effectiveness of a 3D mapping benchmark for ablation in patients with atrioventricular nodal reentrant tachycardia

Case 7

Contact Info

Product

Resources

About