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A 31-year-old female asked:

My ekg showed sinus bradycardia, possible left atrial enlargement, rsr' or qr pattern in v1 suggests right ventricular conduction delay. i'm 39 y/o female with orthostatic hypotension & frequent dizziness, but otherwise healthy & a runner.any concern?

1 doctor answer1 doctor weighed in
Dr. Ed Friedlander
Pathology 45 years experience
I'm good with this: These little variations on the way in which the heartbeat is propagated are common and almost never mean anything. Your bradycardia is healthy if you are a runner. You may want to try a table tilt test to see whether you have more tendency to be orthostatic than other folks; if you stay well-hydrated and haven't had syncopal episodes from it, it may not be a problem.
Last updated Mar 16, 2021
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