Key result
Linear pulsed-field ablation successfully terminates cavotricuspid isthmus-dependent atrial flutter and achieves bidirectional block.
Why the study?
The utilization of linear pulsed-field power for treating atrial flutter had yet to be documented.
Does linear pulsed-field ablation terminate arrhythmia and achieve bidirectional cavo-tricuspid isthmus block in a patient with typical tricuspid isthmus-dependent atrial flutter?
Case Report (n=1)
No
Does linear pulsed-field ablation terminate arrhythmia and achieve bidirectional cavo-tricuspid isthmus block in a patient with typical tricuspid isthmus-dependent atrial flutter?
This case report demonstrates the first successful application of a linear pulsed-field ablation catheter to achieve bidirectional cavo-tricuspid isthmus block and terminate typical atrial flutter.
Answers are grounded in this paper and cite their sources.
Supports exploration of linear pulsed-field ablation for typical flutter; leaves open durability and comparative efficacy versus radiofrequency.
Background: Pulsed-field ablation using annular or petal-shaped catheters had been proven to be effective for achieving electrical isolation of pulmonary veins in patients with atrial fibrillation. However, the utilization of linear pulse-field power for treating atrial flutter has yet to been documented. Case summary: In this report, we present a case involving the successful treatment of tricuspid isthmus-dependent atrial flutter treated with a linear pulsed-field catheter. The patient, a 71-year-old male, presents with an electrocardiogram indicating atrial flutter. Subsequent electrophysiological examination reveals typical atrial flutter that is dependent on the cavo-tricuspid isthmus (CTI). This condition is successfully terminated through the application of linear pulsed-field ablation. Discussion: This case represents a pioneering instance of CTI-dependent atrial flutter ablation utilizing linear pulse-field power. The innovative approach not only effectively treats the patient but also serves as a valuable reference for future applications of linear treatment with pulsed-field ablation.
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Li et al. (2023) conducted a case report in Cavo-tricuspid isthmus (CTI)-dependent atrial flutter (n=1). Linear pulsed-field ablation (PulseLine catheter and NanoAblate instrument) was evaluated on Termination of atrial flutter and bidirectional cavo-tricuspid isthmus block. Linear pulsed-field ablation successfully terminated cavo-tricuspid isthmus-dependent atrial flutter and achieved bidirectional block, with the patient remaining arrhythmia-free at 2 months.
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