I have just consulted with a cardiologist who recommended radiofrequency catheter ablation. I am inclined to have the ablation done, but I'm concerned about the need for a permanent pacemaker as a result. For other mechanisms, this risk is negligible. Thus it would be important for you find out the mechanism responsible your PSVT from your doctor. However, the exact mechanism may not be clear until after an electro-physiology study where internal tracings are recorded with special catheters.
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