Symptoms do not worsen after the failure of cardiac radiofrequency ablation for atrial fibrillation, but atrial fibrillation still exists and further treatment for atrial fibrillation is needed. Cardiac radiofrequency ablation is a procedure in which an electrode catheter is passed through a blood vessel to the site of the heart lesion, and radiofrequency currents are released to ablate localized cardiomyocytes in a specific area in order to break the refractory loops or to reduce and eliminate ectopic pacing points, which can be used to treat atrial fibrillation. When using cardiac radiofrequency ablation to treat atrial fibrillation, ablation is usually performed at the circumflex pulmonary vein orifice, where “galvanic isolation” is formed between the large veins and the atria, and linear ablation within the atria, which can also be used to treat atrial fibrillation. Cardiac radiofrequency ablation can damage the radiofrequency current between 1~3 mm, which is generally not harmful to the body, so the symptoms will not be aggravated after the failure of cardiac radiofrequency ablation for the treatment of atrial fibrillation. After the failure of cardiac radiofrequency ablation for atrial fibrillation, it is necessary to consult a doctor in time and contact with the surgeon to study the next treatment plan, and report any discomfort to the doctor in time.