The potential complications include bleeding, blood clots, pericardial tamponade, and heart block, but these risks are very low, ranging from 2.6 to 3.2%.įor non-paroxysmal atrial fibrillation, a 2016 systematic review compared catheter ablation to heart rhythm drugs. For automatic atrial tachycardias, the success rates are 70–90%. For atrial flutter, single procedure success is 88% to 95% (95% Confidence Interval) and multiple procedure success is 95% to 99% (95% Confidence Interval). Success rates for WPW syndrome have been as high as 95% For SVT, single procedure success is 91% to 96% (95% Confidence Interval) and multiple procedure success is 92% to 97% (95% Confidence Interval). Effectiveness Ĭatheter ablation of most arrhythmias has a high success rate. Typically, catheter ablation is used only when pharmacologic treatment has been ineffective. The ablation procedure can be classified by energy source: radiofrequency ablation and cryoablation.Ĭatheter ablation may be recommended for a recurrent or persistent arrhythmia resulting in symptoms or other dysfunction. If not controlled, such arrhythmias increase the risk of ventricular fibrillation and sudden cardiac arrest. Catheter ablation is a procedure used to remove or terminate a faulty electrical pathway from sections of the heart of those who are prone to developing cardiac arrhythmias such as atrial fibrillation, atrial flutter and Wolff-Parkinson-White syndrome.
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