I am a 49 year old female which has been diagnosed with svt and mild to moderate mvp with ejection fraction of 60%. I have been having a lot of skipped beats and extra beats and feels like pauses to me. I recently wore a holter monitor and it showed up 306 skipped beats and extra beats in groups of three at 231bmp and one pause for 2.1 seconds. I wrote in my diary exactly at the time it showed this, so it was what I was feeling. But when I visited the cardiologist he tried to tell me that it probably was an electrode that came loose or just a reading that wasnt correct due to the heart monitor. I take tenormin and have been on it for about 28 years. I have had the svt for a long time and have know about the mvp for several years, and was told at the emergency room one time that I had the atrial septal aneurysm and that it needed to be evaluated with a tee scope. The heart dr didn t even tell me about it whenever he did the echo test, and I found out like I said, whenever I visited er.
Hi, Look atrial aneurysms can be picked by echocardiography. If you are so stressed then undergo TEE. Secondly, 360 missed beats are too much, and it may be due to artifact or electrode misplacement. Secondly, you are taking atenolol so lesser chances of extra beats. Just keep a check on your blood pressure, sugar level. Avoid tea, coffee, alcohol or any stimulant Chat Doctor.  Avoid undue physical or mental exertion. Try relaxation techniques like deep breathing exercises whenever you feel extra beats. Hope I have answered your query. Let me know if I can assist you further. 