Slouching is not necessarily the only pro-PAC posture...this appears to vary with the individual. The general trends I have seen in commentaries herein, elsewhere, and in myself, and in discussions with EPs, are that PACs which stem from foci are apt to show up under certain postures, typically postures wherein the result of that posture is a little pressure against the area where the foci live. As most (not all) foci live in the back of the heart where the pulmonary veins are attached, PACs can even show up in a specific part of the breathing cycle (again, typically on the intake, when the lungs fill up and press against the PVs). As this whole thing varies between individuals, one can only figure that some postures will bring on PACs more often than others. The reverse logic would be that, if you are noticing posture-driven PACs, then it's likely foci are responsible (at least in my case it's true). I need to put the conditional phrase in here, since this web site is quite sensitive to folks making statements which sound like fact and not opinion, which, in fact, they are.
In my case, most PACs disappear when I am prone, and on my side. Lying on my back, is not quite as effective (probably due to the pressure on the PVs). Lying on my stomach seems to be better.
Slouching seems to force the abdomen up into the cardiac region.
As far as my history is concerned...I am an avid athlete, and got really freaked out when I got PAF, and subsequently, loads of PACs. After going to 4 cardios, I was referred to an excellent EP who diagnosed the situation as PV foci generated PACs and PAF.
An rf ablation was conducted with no complications in the summer of 2000. No repeat PAF since. Some PACs remain since the EP was careful not to ablate anymore tissue than necessary in order to minimize risks. Since the ablation, I have continued to play competitive sports and PACs have diminished somewhat.
To those who exercise, if all else is fine with your heart, then PACs/PVCs generally are of no concern. In my case, they show up a little at the beginning of exercise, disappear during exercise (unless I suddenly push myself...adrenaline is a great spark), and sometimes show up for a short time directly after strong exercise (leftover adrenaline), and they stay away for hours after exercising.
Very interesting to read your story and share your knowledge of ectopic beats, Arthur
Just wanted to share with everybody that I have it exactly the same way as you when exercising. I bike every day, some days for 30-40 miles so I do pretty hard cardiovascular workouts. I also do some jogging and a little weights. When doing a long bike ride, I too often have some PVC's or PAC's in the beginning, then they go away. And as you say, if I push myself very hard, I can get some. After exercise they often return, but go fairly quickly away, IF I DO NOT CONCERN MYSELF ABOUT IT. Previously as I have said, the extra beats made me exercise much less because I became very afraid. My doctors, and they have been many, have all said to me that as long as my heart has no structural defects and I don't feel like passing out or get chest pain I do not have to worry. They can't all be wrong!
I can also add as comfort that I was told by one of my doctors that several of the world-class athletes in my country have PVC's and they too experience spikes in the PVC frequency after having competed.
I have also started to appreciate what one doctor said to me some time ago. "The important thing is to understand that these things cannot harm you. After all, you have more heartbeats than those not having PVC's so tell me how that can make your heart stop" I guess it makes sense!
I encourage everybody with benign PVS's and PAC's to exercise vigorously. Try not to let them stop you, drink plenty of fluids and remember to add electrolytes if exercising long and hard. If you can do this your heart get stronger, you feel better physically AND mentally, and importantly you see that your heart works pretty well after all.
My cardiologist believes strongly that there is relationship between arrythmias and progesterone, my pacs/pvcs and tachy are always worse the week before my period when the progesterone levels are high. I have been on the combined contraceptive pill for 6 months now and must admit that my arrythmias have been better for it, perhaps my hormone levels were a bit skew and the pill has evened them out.
Hey Arthur:
What do you mean by slouching being a pro-PAC position? Also, do you know why people cough when they feel PVCs? I do this sometimes and I've read that other people do it as well? Should I slow down if I'm exercising and I get PVCs? thanks!
Would you be interested in elaborating more information to me...?
I would love to hear more...
I can relate to what everyone is saying, calming some of my fears. I am a 30 year old woman with recently diagnosed pvc's.
No caffeine,nicotene or stress that i know of. I was wondering if anyone knows of a relation to pvc's and depo provera (progesterone). I heard that high levels of progesterone can cause pvc's