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gram-positive bacteria that, when grown on blood-agar plates, completely hemolyze the blood and produce a clear zone around the bacteria colony. Group A beta-hemolytic streptococci cause disease in humans.
mechanical compression of the heart resulting from large amounts of fluid collecting in the pericardial space and limiting the heart's normal range of motion
a group of diseases that affect the myocardium's (heart muscle's) structure or function
surgical incision of any commissure as in cardiac valves to increase the size of the orifice
A blood clot, air bubble, piece of fatty deposit, or other object that has been carried in the bloodstream or lymphatic vessel
inflammation of the inner layer of heart tissue as a result of an infectious microorganism
condition of being inadequate for a given purpose, such as heart valves that do not close properly
pericardial friction rub
friction sound heard over the 4th left intercostal space near the sternum; a classic sign of pericarditis
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