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Case Reports
. 2023 Jun 3;9(8):581-585.
doi: 10.1016/j.hrcr.2023.05.019. eCollection 2023 Aug.

Focal pulsed field electroporation of left ventricular premature contractions after failed radiofrequency ablation

Jim Hansen  1 , Martin A Haugdal  1 , Arne Johannessen  1 , Morten Lock Hansen  1 , Rene Worck  1 , Martin H Ruwald  1
Affiliations
Case Reports

Focal pulsed field electroporation of left ventricular premature contractions after failed radiofrequency ablation

Jim Hansen et al. HeartRhythm Case Rep. .
No abstract available

Keywords: 3D mapping; Electrogram; Electroporation; Premature ventricular contractions; Pulsed field ablation; Ventricular arrhythmia.

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Figures

Figure 1
Figure 1
Twelve-lead electrocardiogram (ECG-12) with clinical premature ventricular contractions. ECG-12 showed frequent monomorphic premature ventricular contractions with a QRS morphology suggestive of a superolateral mitral annulus origin.
Figure 2
Figure 2
Earliest activation electrogram and anatomical ablation sites endocardially and from the distal coronary sinus. A: Earliest endocardial activation was found on the ventricular aspect of the mitral annulus in a left anterior oblique view 1-o’clock position, which preceded QRS onset by 19 ms recorded with the radiofrequency (RF) ablation catheter. B: Earliest endocardial activation recorded with the pulsed field electroporation (PFE) delivery catheter preceding QRS onset by 18 ms. C: Earliest activation in the distal coronary sinus, which preceded QRS onset by 29 ms. D: Ablation sites and catheter placement from the endocardial approach. E: The corresponding ablation site in the great cardiac vein – distal coronary sinus. Red tags represent RF ablation sites and blue tags represent PFE delivery sites.
Figure 3
Figure 3
Excitatory response to pulsed field electroporation delivery on 12-lead electrocardiogram (ECG-12). The figure shows the excitatory premature ventricular contraction response to trains of pulsed field electroporation delivery on ECG-12 and, hereafter, sinus rhythm.
See this image and copyright information in PMC

References

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