Because of the different mechanisms of arrhythmia caused by various heart diseases, it is difficult to treat arrhythmia in the past because of the lack of means and methods. In order to control arrhythmias, various antiarrhythmic drugs must be administered to the patient. Because drug therapy can only control arrhythmia to some extent, the treatment of arrhythmia can only be maintained by drugs for a long time. Once the drug fails or stops, the arrhythmia may occur again. Antiarrhythmic drugs have limited efficacy, many side effects, fewer drugs for long-term control of arrhythmic episodes, and long-term medication costs. Some large clinical trials have confirmed that some patients with organic heart disease and long-term use of antiarrhythmic drugs, although patients with arrhythmia can have different degrees of control, but its side effects and mortality also increased.
Heart catheter ablation of tachyarrhythmia has become a very mature treatment for common paroxysmal ventricular tachycardia, atrial flutter, typical idiopathic premature ventricular and ventricular tachycardia, the success rate of over 90%. Radiofrequency catheter ablation is used to introduce radiofrequency current into the heart through cardiac catheterization. It is located at the critical site of the arrhythmia, and then ablation, blocking the reentrant loop, or eliminating the lesion, thus treating arrhythmias. With the continuous improvement of cardiac electrophysiological examination and the maturity of catheter ablation techniques, more and more kinds of arrhythmias can be cured.
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