Low-voltage areas detected by high-density electroanatomical mapping predict recurrence after ablation for paroxysmal atrial fibrillation
| Autor: | Konstantinos P. Letsas, Konstantinos Vlachos, Louiza Lioni, Theodore Efremidis, Dimitrios Asvestas, George Bazoukis, Stamatis Georgopoulos, Ruairidh Martin, Tong Liu, Kosmas Valkanas, Nikolaos Karamichalakis, Maria Kalafateli, Athanasios Saplaouras, Michael Efremidis, Antonios Sideris |
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| Rok vydání: | 2017 |
| Předmět: |
Male
medicine.medical_specialty Paroxysmal atrial fibrillation medicine.medical_treatment Catheter ablation 030204 cardiovascular system & hematology Pulmonary vein 03 medical and health sciences 0302 clinical medicine Imaging Three-Dimensional Predictive Value of Tests Recurrence Physiology (medical) Internal medicine Atrial Fibrillation medicine Humans Sinus rhythm 030212 general & internal medicine Prospective Studies Aged Univariate analysis business.industry Body Surface Potential Mapping Atrial fibrillation Middle Aged Ablation medicine.disease Atrial fibrosis Cardiology Catheter Ablation Female Cardiology and Cardiovascular Medicine business Follow-Up Studies |
| Zdroj: | Journal of cardiovascular electrophysiology. 28(12) |
| ISSN: | 1540-8167 |
| Popis: | Introduction We aimed to evaluate the extent of atrial fibrosis in paroxysmal atrial fibrillation (AF) and the correlation with ablation outcomes after pulmonary vein antral isolation (PVΑI) using a mapping system with high-resolution and high-spatial sampling. Methods and results We prospectively enrolled 80 consecutive patients (45 males, median age 60.26 years) with symptomatic paroxysmal AF who were scheduled for PVAI. Prior to PVAI, high-density bipolar voltage mapping (median number of 2,485 points) was carried out during sinus rhythm in all patients. Criteria for an adequate left atrium (LA) shell were > 2,000 points. Each acquired point was classified according to the peak-to-peak bipolar voltage electrogram based on two criteria (criterion A: healthy > 0.8 mV, border zone: 0.4–0.8 mV and scarred: 0.5 mV, border zone: 0.25–0.5 mV and scarred |
| Databáze: | OpenAIRE |
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