Hi, Thanks for writing to Health Care Magic, I am Dr Asad Riaz, I have closely read your question and I understand your concerns, I will hereby guide you regarding your health related problem. Paroxysmal supraventricular tachycardia basically means an episodic increase in your heart rate to around 250-300 beats per minutes that may settle on its own, with vagal meanuvres or at times may require drugs. For any patient having recurrent such attacks, there may be an ectopic focus in her heart. This means that a small part of heart heart muscle may be more excitable than normal and may during those episodes produce impulses that lead to rapid heart rate. The only permenant treatment for that is ablation of that ectopic focus by using radiofrequency ablation-a procedure that is done at an electrophysiology lab and uses radiation to destroy that small area I hope this answered your question, if you have more feel free to ask. Regards. Dr.Asad Riaz. General and Family Physician..