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Cardiac physiology or heart function is the study of healthy, unimpaired function of the heart: involving blood flow; myocardium structure; the electrical conduction system of the heart; the cardiac cycle and cardiac output and how these interact and depend on one another.
In heart failure, the heart muscle weakens, and the ventricles stretch (dilate) to the point that the heart can't pump blood efficiently throughout the body. Blood clots: If clots enter the bloodstream, they can block blood flow to vital organs, possibly causing a heart attack or stroke.
Also known as heart bypass surgery, CABG is a type of open heart surgery that improves blood flow to the heart. During the procedure, a surgeon connects healthy blood vessels from one part of the ...
Patients with heart failure may experience breathlessness especially when lying flat, as well as ankle swelling, known as peripheral oedema. Heart failure is the result of many diseases affecting the heart, but is most commonly associated with ischemic heart disease, valvular heart disease, or high blood pressure.
A congenital heart defect, also known as a "congenital heart anomaly" or "congenital heart disease", is a problem in the structure of the heart that is present at birth. [100] Signs and symptoms depend on the specific type of problem. [101] Symptoms can vary from none to life-threatening. [100]
LDH-1 isozyme is normally found in the heart muscle and LDH-2 is found predominantly in blood serum. A high LDH-1 level to LDH-2 suggest MI. LDH levels are also high in tissue breakdown or hemolysis. It can mean cancer, meningitis, encephalitis, or HIV. This is usually back to normal 10–14 days. Aspartate transaminase (AST) This was the first ...
Major factors influencing cardiac output – heart rate and stroke volume, both of which are variable. [1]In cardiac physiology, cardiac output (CO), also known as heart output and often denoted by the symbols , ˙, or ˙, [2] is the volumetric flow rate of the heart's pumping output: that is, the volume of blood being pumped by a single ventricle of the heart, per unit time (usually measured ...
Heart health comes down to healthy habits and prevention. Cardiologists share how they keep their own hearts healthy with a daily routine. 8 simple things cardiologists do to protect their own hearts
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