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Echocardiogram shows borderline atrial enlargement. Cause?

What is the cause of "borderline left atrial enlargement"? I'm 50' and just had a treadmill stress echocariogram at Mayo Clinic in Scottsdale. I achieved expected maximum heart rate and was stopped after 17 minutes and 175% of target performance for my age and weight. I'm 5'9"' 178 lb male who works out rigorously with weights and does cardio 5x a week for 45 minutes.
Asked On : Wed, 24 Apr 2013
Answers:  1 Views:  278
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Cardiologist 's  Response
Dear Sir
The size of Left atrium (LA) is dependent upon your body size, any disease of mitral valve, diastolic dysfunction (impaired relaxation of heart), presence of abnormal rhythms like Atrial fibrillation, presence of anemia or other disorders causing high volume circulation and on your intensity of workouts. since you have not mentioned the size of your LA (especially the volume), it is not feasible to calculate that if it truly out of limits for your body size. neither other parameters on your ECHO report are mentioned (i assume they are all normal). if you do not have any other problem in ECHO and you do not have clinical problem, then do not worry, relax and send us its exact size so that we can calculate it for you to give you exact picture.
sukhvinder singh
Answered: Wed, 24 Apr 2013
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