Arrhythmias & electrophysiologyCohort study
Durability of atrial linear lesion sets using a dual-energy lattice-tip catheter: Data from invasive remapping
- case series
- invasive remapping
Authors' conclusion
A novel lattice-tip ablation catheter allowing for PFA and RFA creates durable mid-term posterior box, CTI, and roof lines. Durability of anterior and mitral isthmus lines remains suboptimal in this case series.
Study context
- Population
- Patients who previously underwent atrial ablation with de novo linear lesion sets using a dual-energy lattice-tip catheter allowing for pulsed field ablation (PFA) and radiofrequency ablation (RFA), with atrial fibrillation (AF) and/or macro-reentrant atrial tachycardia (AT)39 of 252 (16%) patients with remapping data available
- Participants
- 39 patients
Main finding
As reported in the abstract
Durable isolation/block of PVs and linear lesions at remapping · median of 46 days (interquartile range [IQR] 30-167)
- Pulmonary veins (PVs) durably isolated
- 31 of 36 PVs (86%)
- Linear lesions durably blocked
- 54 of 71 linear lesions (76%)
- roof lines
- 6/6 [100%]
- posterior box lesions
- 10/10 [100%]
- anterior lines
- 9/17 (53%)
- mitral isthmus lines
- 7/13 [54%]
- Cavotricuspid isthmus (CTI)
- 7/7 [100%]
Observational data: associations, not effects.
Further findings
Indications for remapping
patients
- Recurrent arrhythmias
- 14 (36%)
- Left atrial appendage (LAA) occlusion after previous LAA isolation
- 25 (64%)
Original publication
Durability of atrial linear lesion sets using a dual-energy lattice-tip catheter: Data from invasive remapping. Heart Rhythm. Published 8 May 2026. doi:10.1016/j.hrthm.2026.05.004
Summarised from the published abstract; every number is checked against it