Many possibilities: There are many causes of an irregular heart rhythm. It is possible to have sinus arrhythmia, which is a variant of normal. It is also possible to have atrial fibrillation with variable atrioventricular conduction. This is a very fast heart rate in the top chambers with only irregular conduction to the lower chambers of the heart. This can be serious. There are multiple other possible rhythms.
Answered 2/5/2014
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Many possible: Some irregular hb are a variation of normal (sings arrhythmia), many others are very common and quite harmless (pac, PVC ), others may require further evaluation or treatment (atrial flutter or atrial fibrillation). Check with your doc to get more specifics about your particular irregular rhythm.
Answered 6/10/2014
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