- Sep 21, 2015
- Tallahassee, Florida
Those are good points, oo0My. I should not have implied that an HR in the 40's is nothing to be concerned about. It depends on what the reason is, or if there are comorbidities, and most importantly if when under load the heart can respond appropriately to provide the needed oxygen. In my case the biggest concern was whether or not my heart block would prevent that from happening when I was under physical exertion which would result in a heart attack. Of course the lack of oxygen to the heart muscle during physical exertion is what causes most heart attacks and is most often associated with atherosclerosis typically found in smokers and/or overweight people, rather than those of us with valvular diseases.