BACKGROUND: Left atrial tachycardias (LAT) occur in about 5% of patients after irrigated-tip circumferential antral (CA) pulmonary vein isolation (PVI). They may cause debilitating symptoms in the patient and may be very difficult to treat. OBJECTIVE: To assess the incidence of LAT after PVI with the multielectrode phased-radiofrequency pulmonary vein ablation catheter (PVAC) compared to circumferential antral PVI with an irrigated-tip catheter. METHODS: We analyzed data from our ablation database. A total of 150 patients who underwent their first PVI with the PVAC system and 300 patients who underwent their first PVI with irrigated-tip circumferential antral (CA) radiofrequency ablation were matched by age and sex, as well as by type of atrial fibrillation. RESULTS: Of 150 PVAC patients, only 1 patient (0.7%) developed LAT during mean follow-up of 21 ± 14 months. The mechanism was macroreentry and the patient underwent successful ablation at our institution. Eleven of 300 irrigated-tip CA PVI patients (3.7%) developed LAT during mean follow-up of 22 ± 14 months and subsequently underwent ablation (P = .05). CONCLUSION: LAT occurs more frequently after irrigated-tip CA PVI compared to single-shot-device ablation with PVAC. Apart from being less technically demanding, lower incidence of LAT may influence choice of ablation technology.
BACKGROUND:Left atrial tachycardias (LAT) occur in about 5% of patients after irrigated-tip circumferential antral (CA) pulmonary vein isolation (PVI). They may cause debilitating symptoms in the patient and may be very difficult to treat. OBJECTIVE: To assess the incidence of LAT after PVI with the multielectrode phased-radiofrequency pulmonary vein ablation catheter (PVAC) compared to circumferential antral PVI with an irrigated-tip catheter. METHODS: We analyzed data from our ablation database. A total of 150 patients who underwent their first PVI with the PVAC system and 300 patients who underwent their first PVI with irrigated-tip circumferential antral (CA) radiofrequency ablation were matched by age and sex, as well as by type of atrial fibrillation. RESULTS: Of 150 PVACpatients, only 1 patient (0.7%) developed LAT during mean follow-up of 21 ± 14 months. The mechanism was macroreentry and the patient underwent successful ablation at our institution. Eleven of 300 irrigated-tip CA PVI patients (3.7%) developed LAT during mean follow-up of 22 ± 14 months and subsequently underwent ablation (P = .05). CONCLUSION: LAT occurs more frequently after irrigated-tip CA PVI compared to single-shot-device ablation with PVAC. Apart from being less technically demanding, lower incidence of LAT may influence choice of ablation technology.
Authors: Philipp Seidl; Frank Steinborn; Lisa Costello-Boerrigter; Ralf Surber; Paul C Schulze; Christine Böttcher; Andreas Sommermeier; Violeta Mattea; Roland Simeoni; Frank Michael Malur; Harald Lapp; Anja Schade Journal: J Interv Card Electrophysiol Date: 2020-05-15 Impact factor: 1.900
Authors: Kevin Willy; Kristina Wasmer; Dirk G Dechering; Julia Köbe; Philipp S Lange; Nils Bögeholz; Christian Ellermann; Florian Reinke; Gerrit Frommeyer; Lars Eckardt Journal: Clin Cardiol Date: 2020-10-19 Impact factor: 2.882
Authors: Patrick Leitz; Kristina Wasmer; Christian Andresen; Fatih Güner; Julia Köbe; Benjamin Rath; Florian Reinke; Julian Wolfes; Philipp S Lange; Christian Ellermann; Gerrit Frommeyer; Lars Eckardt Journal: J Cardiovasc Dev Dis Date: 2022-02-03