It is common for patients with atrial fibrillation (AF), especially older patients, to have a combination of intermittent, slow heart rates, and many of these patients are fitted with permanent pacemakers for this reason. However, after pacemaker implantation, many patients still have panic attacks. The reason for this is that pacemakers are only designed to treat the long intervals of atrial fibrillation, but they do not treat the faster heart rates of atrial fibrillation, and therefore antiarrhythmic medications as well as anticoagulant medications, warfarin, are also required. In addition, a noteworthy phenomenon is that most of these patients usually do not have atrial fibrillation when the heart rate is often slow (less than 60 beats / min), but there is no long intervals, and there are few uncomfortable symptoms; and once atrial fibrillation occurs, on the one hand, you will feel panicky, and at the same time in the atrial fibrillation or atrial fibrillation termination of the long intervals, resulting in dizziness, black eyes and other symptoms. This is due to atrial fibrillation atrial beating too fast (350-600 beats / min) caused by the elderly own heart rate is slow, in such a fast heart rate drive, atrial-ventricular conduction between the situation as well as the recovery of their own heart rate will be affected to varying degrees, so this time the long intervals is not the patient’s true heart rate situation, should be treated differently. Some patients with atrial fibrillation who were able to maintain a stable normal rhythm after interventional ablation had varying degrees of heart rate increase, and therefore did not have long intervals. Therefore, the close relationship between the appearance of long intervals and the occurrence of atrial fibrillation in patients with atrial fibrillation is again shown. Therefore, effective maintenance of normal rhythm in therapy is the key.