Do you know if heart palpitations are life
threatening? Got me a little worried when you mention surgery
(My disclaimer is as all the others, I am not a doctor and I don't play one on TV...If you feel bad or your palpitations do not go away then you should most definitely see your doctor.)
Palpitations as they are majorly considered and discussed are generally not harmful. There are times when they are indeed worrisome, but usually those avenues are not taken if there is no known cause to them. (Similar to the way that when you go to the doctor with a cough, they do not immediately assume you have ebola...they usually seek out the simplest and most likely answer first). In this case, it seems that there is a decent possibility that your palpitations are caused by caffeine intake combined with a potentially quick uptick in nicotine. That being said, palpitations caused by stimulants such as caffeine and nicotine are generally 1 of two types. Let me first preface this by saying that essentially all palpitation means is a heartbeat you can feel. Our bodies have adapted to be able for us to not feel our heartbeat each time that it beats (imagine how annoying and disconcerting it would be!). So anytime you can feel your heartbeat and are aware of it, that is a palpitation.
So, when considering the affects of caffeine and nicotine the first type of palpitation that is usually recognized is a normal-rhythm tachycardia..essentially your heart is just beating faster but in a normal sinus rhythm (which, btw there is a range of "normal" when it comes to sinus rhythm). Similarly these types of palpitations can be felt after a vigorous exercise or walking up stairs for those of us who are out of shape! This type of palpitation can cause the sufferer some discomfort and a feeling of being "amped up".
The second kind that people get is the good 'ol (insert sarcasm here) PVC, or pre-ventricular contraction. Crap, that sounds scary, right? Well in the large majority of cases it is not at all, just makes us feel crappy, amped up, and anxious. These are what is more commonly described as a heart jumping, leaping, missing a beat, or skipping a beat. In reality, while it may feel like this is happening, it truly is not. Basically, the PVC is NOT what you feel, it is the after beat that you feel. During a PVC, the ventricle prematurely contracts on a beat, causing a little bit of the blood to not get pumped all the way out bc the valve was not fully primed yet. So, on the next subsequent beat, it has to pump a little harder to get the extra out of the chamber. The heart is a freaking amazing organ to say the least.
Anyway, I know all to well about these things because I get them quite frequently and it has to do with a combo of my anxiety and panic disorder as well as the loads of Dr. Pepper I drink along with the nicotine. A couple years back, I would have them constantly for days and it sucked...there was a lot going on in my life and I there was a production company coming to film me from the Weather Channel the next week and I had a run of bad heartburn (which can also cause PVCs) so I was in quite a state. However, I was fine, no meds or surgeries needed and while it is never fun you have the choice as to your level of tolerance for them - is the coffee and nicotine worth dealing with the palps? If so, have at it. If not, then we need to moderate to get them to go away or get to an acceptable level.
Mike