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What does it mean if the "top half" of my heart quit working?

The top half of my heart quit working two years ago. Is the artificial heart program advancing enough to give me hope that there will be a fix soon?   

submitted by David from Wrangell, Alaska on 10/23/2012


Mohammad Saeed, MDby Texas Heart Institute cardiologist, Mohammad Saeed, MD    

About 80% of the blood is pumped by the two lower chambers of the heart (the ventricles). The rest of the blood is pumped by the upper two chambers (the atria). In certain conditions like atrial fibrillation, the upper chambers can stop contracting and stop contributing to blood flow. These conditions typically result in slight decline in cardiac output. The decline in cardiac output may cause mild to moderate symptoms but it does not have any effect on life expectancy. In about 30% of these patients, the drop in blood flow is so small that it's not noticeable and patients have no symptoms. In such patients, it is standard practice to leave them in atrial fibrillation and control the heart rate.     

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Updated October 2012
Texas Heart Institute Heart Information Center
Through this community outreach program, staff members of the Texas Heart Institute (THI) provide educational information related to the prevention, diagnosis, and treatment of cardiovascular disease. It is not the intention of THI to provide specific medical advice, but rather to provide users with information to better understand their health and their diagnosed disorders. Specific medical advice will not be provided and THI urges you to visit a qualified physician for diagnosis and for answers to your questions.
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