I'm not sure what you mean by the venous approach in your question. Ablation procedures are most often performed with catheters that are inserted into the femoral veins in the legs, but can also be done with catheters inserted into the subclavian veins beneath the collarbones. Only rarely are ablation procedures done via an arterial approach on the left side of the heart - this is not new. If you could please write back with more specific questions given the new information I've listed, I may be better able to answer your question. I hope you find this information useful.
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Only your physician can provide specific diagnoses and therapies. Please feel free to write back with additional questions. The Heart Center website contains a directory of the cardiology staff that can be used to select the physician best suited to address your cardiac problem. Information contained within this forum is intended solely for general educational purposes and is not intended nor implied to be a substitute for professional medical advice relative to your specific medical condition or question. Only your physician can provide specific diagnoses and therapies.