Comparison of Different Ablation Surgeries on Left Atrial Reverse Remodeling in Patients With Atrial Fibrillation

Inclusion Criteria: * 1.Aged between 18-75 years old; 2.Patients confirmed by electrocardiogram or clinically diagnosed with atrial fibrillation; 3.Atrial fibrillation that terminates spontaneously or through intervention within 7 days after onset; 4.Accompanied by symptoms of atrial fibrillation; 5.The patient has a willingness to undergo catheter ablation treatment; 6.The patient agrees to be enrolled and has high compliance. They voluntarily participate in the trial, sign an informed consent form, and cooperate with the follow-up of this project. Exclusion Criteria: * 1.The echocardiography shows that the anterior posterior diameter of the left atrium is ≥ 50mm, and the LVEF is ≤ 40%; 2.Esophageal echocardiography or CT examination suggests thrombus in the left atrium/left atrial appendage; 3.Preoperative confirmation of typical atrial flutter or other supraventricular tachycardia by electrocardiogram or Holter; 4.Previously underwent catheter ablation or other surgeries due to atrial fibrillation; 5.Previously underwent left atrial appendage closure surgery or left atrial appendage closure surgery, or planned to undergo one-stop left atrial appendage closure surgery; 6.Previously underwent valve repair or valve replacement surgery; 7.Implantable metal cardiac instruments that have implanted pacemakers, implantable cardioverters, defibrillators, or other devices that may interfere with the energy field of pulsed electric field ablation; 8.New York Heart Function Classification (NYHA) Level III or IV; 9.Cardiovascular events within 3 months prior to surgery (including acute myocardial infarction, coronary intervention or bypass surgery, atrial or ventricular incision); 10.Has undergone any carotid stent implantation or endarterectomy within 6 months prior to surgery; 11.Thromboembolic events (including transient ischemic attacks) occurring within 6 months prior to surgery; 12.Existence of wall thrombus, atrial septal occluder or patch, tumor, myxoma, or other abnormal conditions that hinder vascular puncture or catheter operation; 13.Severe lung disease (such as restrictive lung disease, constrictive or chronic obstructive pulmonary disease) or any other lung or respiratory system disease or dysfunction that can cause severe chronic symptoms; 14.Atrial fibrillation secondary to electrolyte disorders, thyroid diseases, or other reversible causes; 15.Known pulmonary vein stenosis; 16;Systemic active infection; 17.Severe organic heart disease; 18.Contraindications to anticoagulant therapy, X-rays, and severe hematological disorders; 19.Expected life\<12 months; 20.Pregnancy test positive for women of childbearing age or in lactation or planning to conceive within the next 12 months; 21.Patients who are participating in clinical trials of other experimental biological agents, drugs, or devices and have not completed them; 22.Other researchers believe that it is not appropriate to participate in this experiment.