Because of the different mechanisms of heart disease arrhythmia, in the past because of the lack of means and methods, in the treatment of arrhythmia process is often more difficult. In order to be able to control arrhythmia, patients must be given a variety of antiarrhythmic drugs. As the drug treatment can only be controlled to a certain extent, arrhythmia, treatment of arrhythmia can only be maintained by drugs for a long time. Once the drug fails or is discontinued, arrhythmia may occur again. Antiarrhythmic drugs have limited efficacy, side effects, long-term control of arrhythmia attacks less drugs, and long-term high cost of medication. Some large clinical trials have also confirmed that some patients with organic heart disease long-term use of antiarrhythmic drugs, although the patient's arrhythmia can have varying degrees of control, but its side effects and mortality also increased.
Cardiac catheter ablation therapy for rapid arrhythmia has developed into a very mature treatment for the common paroxysmal supraventricular tachycardia, the typical atrial flutter, idiopathic ventricular premature and ventricular tachycardia, the success rate of 90% or more The Cardiac catheter ablation is the introduction of radiofrequency currents into the heart through cardiac catheters, locating at key points of arrhythmia production or maintenance, and then ablation to block reentry loops or eliminate lesions to treat arrhythmias. With the continuous improvement of electrophysiological examination of the heart and catheter ablation techniques continue to mature, more and more types of arrhythmia can be cured.
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