The latest OCTARAY multi-electrode mapping catheter and TUREref technology were used to perform ultra-high precision mapping on the left atrial and left atrial auricle of persistent atrial fibrillation in the condition of sinus rhythm and atrial fibrillation respectively, and the density and accuracy of potential were significantly improved. According to the mapping results, the numerical calculation of the personalized low voltage region was carried out, and the personalized ablation route was designed according to the low voltage region.
Patients aged 18 to 85 years;
Diagnosed with drug-refractory, symptomatic, persistent atrial fibrillation; Definition: At least one electrocardiogram (ECG) record of an atrial fibrillation episode within 12 months prior to enrollment.
Non-valvular atrial fibrillation;
Able to understand the purpose of the study, voluntarily participate in the study, the patient or their legal representative signs the informed consent form, and willing to complete follow-ups as required by the study protocol.-
Atrial fibrillation secondary to thyroid disease or other reversible factors;
Imaging studies indicating intracardiac thrombus;
Moderate to severe mitral stenosis or regurgitation;
Left ventricular ejection fraction <40%, or New York Heart Association (NYHA) functional class III or IV;