Patent foramen ovale and left atrial appendage flow velocity predict atrial fibrillation recurrence post cryoballoon ablation

Autor: Agnieszka Olszanecka, Aleksander Kusiak, Marek Rajzer, Adam Bednarski, Wiktoria Wojciechowska, Marek Jastrzębski, Tomasz Sondej, Agnieszka Bednarek, Grzegorz Kiełbasa
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Popis: Background: Transesophageal echocardiography (TEE) allows detailed characterization of atrial fibrillation (AF) substrate and could be valuable for predicting pulmonary vein isolation (PVI) procedure outcomes. Aims: We aimed at assessing the value of TEE-derived left atrial (LA) and LA appendage (LAA) features as prognostic markers for AF recurrence after cryoballoon-based ablation. Methods: Patients were enrolled using a prospective database of consecutive PVI procedures performed over a 7-year period. The following TEE-derived parameters were investigated: LAA emptying flow velocity (LAA-FV), the presence of patent foramen ovale (PFO), LA spontaneous echo contrast, and mitral regurgitation. Diagnosis of AF recurrence was based on scheduled and symptoms triggered ECG monitoring. The Cox’s regression model and Kaplan-Meier survival curves were applied for statistical analysis. Results: A total of 417 consecutive patients who underwent their first PVI using cryoballoon were analyzed (mean age: 59 years). AF recurrence was noted in 25.7% of patients (median follow-up of 24 months). Four TEE-derived variables had predictive values for AF recurrence: LAA-FV
Databáze: OpenAIRE