Efficacy of temperature-guided cryoballoon ablation without using real-time recordings – 12-Month follow-up

Autor: P. Christian Schulze, Dirk Prochnau, Hans-Reiner Figulla, Ralf Surber, Konstantin von Knorre
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: International Journal of Cardiology: Heart & Vasculature, Vol 21, Iss, Pp 50-55 (2018)
International Journal of Cardiology. Heart & Vasculature
ISSN: 2352-9067
Popis: Background: We sought to evaluate a temperature-guided approach of cryoballoon (CB) ablation without visualization of real-time recordings. Methods and results: We analysed 166 patients (34.9% female, 60 ± 11 years) with paroxysmal or short-term persistent atrial fibrillation (AF). Comorbidities included diabetes mellitus (n = 28), coronary artery disease (n = 24), hypertension (n = 122), previous stroke or TIA > 3 months (n = 12). Cryoablation of the pulmonary veins (PV) was performed using first-generation (n = 78) and second-generation CB (n = 88). Two 5-minute freezes were performed for the first-generation and two 4-minute freezes for the second-generation CB with the intention to achieve a temperature drop below −40 °C. At 12-month follow-up, we observed overall freedom from AF in 92 patients (56.6%, mean time to AF recurrence 3.4 ± 2.9 months). There was a significant difference in freedom from AF between first-generation CB (45%) and second-generation CB (67%; p
Databáze: OpenAIRE