PVC-Premature Ventricular Contractions-

I have a 3 wire pacemaker for 2 years,No problems. I recently had a 30 minute period of slow heartbeats on my Pulse Oximeter. Went to ER, blood tests showed low magnesium level. Received magnesium to raise levels. They checked my pacemaker and everything came out good. I was told I had expierienced PVC and my pulse was weak but the pacemaker still picked it up and did not add pulses.

Hospital Cardio said it was plausable but I need to go to my Cardio Clinic for more determination.

Anyone have any expierience of PVC?



by AgentX86 - 2020-01-08 11:28:23

Sure, nearly everyone has had PVCs. By themselves, are no big worry unless the frequency gets to something like 30% of heartbeats. PM

What's happening is that the PVC occurs before the ventricle is completely full of blood, so is "weak". This weak beat may not register on a pulse-ox or even your finger on the wrist. You could probably feel it on your carotid  as a weak pulse. The pacemaker sees the electrical activity and holds off the next beat, so it feels like a skipped beat. It's not really.

I've had a lot of them and it feels awful,  so I know what you're going through. It's rarely an emergency,  though.

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