Resynchronization Therapy.
If the cardiac size is within the upper limits of normal, it means that the heart is still a normal size, but is on the larger size of all normal hearts. There is a range for how big the heart is allowed to be.
marginal sized heart
Size varies from person to person, but typically its about the size of its owners' clenched fist.
Your cardiac muscles is your heart. Make a fist with one of your hands. This is the closest and most accurate shape and size of YOUR heart.
A chest X-ray which is read as having a borderline heartsize is one in which the size of the heart is at the very upper limit of normal. This means that the actual heart size may be normal or slightly increased. If there is a suspicion of increased size based on symptoms, physical exam or EKG, as well as the chest x-ray, an echocardiogram may be performed to determine if it truly is enlarged. Only your physician can decide if this is warranted in your particular case.
Normal findings from a cardiac catheterization will indicate no abnormalities of heart chamber size or configuration, wall motion or thickness, the direction of blood flow, or motion of the valves.
If the wall thins enough, the patient goes into cardiac failure.
cardiac cells
Some signs that the cardiovascular system is aging are increased stiffness of the aorta, reduction in the cardiac muscle fiber size, progressive loss of cardiac muscular strength, reduced cardiac output, a decline in maximum heart rate, and an increase in systolic blood pressure.
cardiac cells
cardiac cells