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Pulmonary vein isolation using second-generation single-shot devices: not all the same?

Philipp Seidl¹, Frank Steinborn¹, Lisa Costello-Boerrigter²

¹Clinic for Cardiology/Department for Interventional Electrophysiology, Helios Hospital Erfurt, Nordhäuser Str. 74, 99089, Erfurt, Germany.

Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing

|May 17, 2020

Summary

The second-generation cryoballoon (CB 2nd) demonstrated superior pulmonary vein isolation (PVI) success rates compared to the pulmonary vein ablation catheter (PVAC Gold) in patients with paroxysmal atrial fibrillation. Long-term follow-up confirmed CB 2nd

Keywords:

Atrial fibrillation ablation Circular pulmonary vein ablation catheter (PVAC)Cryoballoon ablation (CB)Pulmonary vein isolation

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Direct Pressure Monitoring Accurately Predicts Pulmonary Vein Occlusion During Cryoballoon Ablation

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Published on: February 26, 2013

Area of Science:

Cardiology
Electrophysiology
Medical Devices

Background:

Pulmonary vein isolation (PVI) is crucial for treating atrial fibrillation.
Single-shot devices simplify PVI procedures.
Second-generation cryoballoon (CB 2nd) shows promise, but comparative data with other catheters like PVAC Gold are limited.

Purpose of the Study:

To compare the acute and long-term efficacy of CB 2nd versus PVAC Gold for PVI.
To evaluate success rates in patients with paroxysmal atrial fibrillation.

Main Methods:

A sequential registry cohort and a prospective randomized study were conducted.
Patients underwent first-time PVI using either PVAC Gold or CB 2nd.
Ablation success was defined as freedom from atrial fibrillation/tachycardia off antiarrhythmic drugs.

Main Results:

In the registry, CB 2nd showed higher success (81%) than PVAC Gold (54%) after ~13 months.
The randomized study reported 12-month success rates of 86% for CB 2nd versus 50% for PVAC Gold.
Complication rates were low in both groups.

Conclusions:

Both registry and randomized data indicate CB 2nd is superior to PVAC Gold for PVI.
CB 2nd offers better long-term freedom from atrial arrhythmias.