Publications by authors named "A METZNER"

Background: Initial clinical studies of pulsed field ablation (PFA) to treat atrial fibrillation (AF) indicated a >90% durability rate of pulmonary vein isolation (PVI). However, these studies were largely conducted in single centers and involved a limited number of operators. The electrophysiological findings and outcomes in patients undergoing repeat ablation after an initial PF ablation for AF are incompletely understood.

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Background: Catheter ablation is the primary treatment option for idiopathic ventricular tachycardia (VT). It plays a key role in acute therapy of electrical storm, treatment of VTs in patients with structural heart disease (SHD), and can reduce VT burden. Here we report on 10-year clinical outcomes following VT ablation from patients enrolled in the prospective German Ablation Registry.

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Article Synopsis
  • A new three-dimensional mapping platform combined with a lattice-tip catheter allows for both monopolar pulsed field ablation and radiofrequency energy delivery, and has been tested in deep sedation for the first time, alongside general anesthesia (GA).* -
  • The study involved 63 patients with atrial fibrillation, showing a 100% pulmonary vein isolation (PVI) rate in both groups, with comparable procedure times and clinical outcomes despite one patient requiring a shift from deep sedation to GA.* -
  • The results suggest that using this novel ablation technique in deep sedation is effective and leads to a significantly shorter lab occupancy time compared to general anesthesia.*
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Article Synopsis
  • - The study explores a new lattice tip ablation catheter capable of using both radiofrequency and pulsed-field energy for performing pulmonary vein isolation and linear lesions, focusing on safety and effectiveness without general anesthesia (GA).
  • - Researchers collected data from 55 patients who had atrial fibrillation ablation, comparing those under GA to those under deep sedation; results showed high success rates for creating linear lesions, with minimal complications (1.8%).
  • - Findings suggest that linear ablation using the lattice tip catheter is feasible and safe under deep sedation, indicating a low need for switching energy sources during the procedure.
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An early rhythm stabilization is the primary focus of the current treatment of atrial fibrillation. Based on current studies catheter ablation of pulmonary vein isolation (PVI) is an established component in the treatment of atrial fibrillation. Therefore, in the management of affected patients this procedure should be offered at an early stage in addition to the holistic treatment approach with consistent treatment of cardiovascular risk factors and thromboembolism prophylaxis with anticoagulants.

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