My husband had four stents put into his heart in 2007, and is now weaing a heart monitor for a month, as he had some palpitations of his heart a couple of weeks ago and felt lightheaded.  He said he has not had any since wearing the heart monitor.  What could have caused these palpitations.
Hello and thank you for using Chat Doctor. I carefully read your question and I understand your concern. I will try to explain you something and give you my opinion. Palpitations are related with a heart rhythm issue. There are some electrical impulses that generates from different parts of the heart different from normal sinus rhythm. They cause a premature heart contraction that it's not a normal one followed by a pause and then a normal heart contraction. In these cases the person experience palpitation, flattering sensation, anxiety, difficulties in breathing deeply. There are different causes of this rhythm issue like simple stress, coffee and alcohol consumption, so it is mandatory to avoid this.Also, there are many pathologies like anemia, hyperthyroidism or ischemic heart disease that might cause palpitations, if I was the treating doctor I will recommend some examination like a fool blood analyze to exclude anemia, hyperthyroidism. I will also recommend what your doctor has already done, a holder rhythm monitoring to see the frequency of the extra beats. If your husband does not experience palpitations during the hole month than this is nothing to worry about. If it is possible I will also recommend a stress test. After knowing the frequency and excluding some factors we can decide how to treat them. Hope I was helpful. Best regards.