Blood returning to the heart from the body contains low levels of oxygen and high levels of carbon dioxide. This blood flows into the right atrium and then down into the adjacent right ventricle. After the right ventricle fills, contraction of the right atrium pumps additional blood into the ...
The CDC estimates that more than 12 million people in the United States will have atrial fibrillation (AFib) by 2030. This heart rhythm abnormality can increase the risks of stroke and heart failure. The earlier AFib is treated, the better the chances ar