Re: Pvc's causing svt's???
SVT is a common disorder and very uncomfortable, scary when it happens. There may be an "accessory neural pathway" in the heart that gets triggered when the SVT occurs or an irritable focus that takes over the pacing from your SA node, where your heart rate pacer is located. The maneuvers described above can help stop it. I would take a large bowl of ice water and actually plunge your face into it and keep it there until you need a breath. Also, straining down on your bowels like to have a BM can break the cycle too. The beta blockers are meant to prevent attacks and are quite effective for both the PVCs and SVT, although you may be having PAC's (premature atrial contractions). When you go into SVT, if the maneuvers don't stop it, lie down, stop driving if you are driving when it occurs (some people get faint with it) and see a cardiologist for preventive treatment. You need an EKG or monitor strip while it is happening to get the most helpful info.