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CARDIOVASCULAR AND PULMONARY LEGAL GLOSSARY |
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Glossary of Cardiovascular and Pulmonary Terms
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B C
D E
F G
H I
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M N
O P
Q R S
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W X Y Z #
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Magnetic Resonance Imaging (MRI): A
technique that produces images of the heart and other body structures by
measuring the response of certain elements (such as hydrogen) in the body to a
magnetic field. When stimulated by radio waves, the elements emit distinctive
signals in a magnetic field. MRI can produce detailed pictures of the heart and
its various structures without the need to inject a dye.
Maze Surgery: A type of heart surgery that
is used to treat chronic atrial fibrillation by creating a surgical
"maze" of new electrical pathways to let electrical impulses travel
easily through the heart. Mitral Stenosis: A narrowing of the Mitral valve,
which controls blood flow from the heart's upper left chamber (the left atrium)
to its lower left chamber (the left ventricle). This is often a result of
rheumatic fever when younger, or in the parents of the patient.
Mitral Valve: The structure that controls
blood flow between the heart's left atrium (upper chamber) and left ventricle
(lower chamber).
Mitral Valve Prolapse: A condition that
occurs when the leaflets of the Mitral valve between the left atrium (upper
chamber) and left ventricle (lower chamber) bulge into the atrium and permit
backflow of blood into the atrium. The condition is often associated with
progressive mitral regurgitation.
Mitral Valve Regurgitation: Failure of the
Mitral valve to close properly, causing blood to flow back into the heart's
upper left chamber (the left atrium) instead of moving forward into the lower
left chamber (the left ventricle).
Myocardial Infarction: A heart attack. The
damage or death of an area of the heart muscle (myocardium) resulting from a
blocked blood supply to the area. The affected tissue dies, injuring the heart.
Symptoms include prolonged, intensive chest pain and a decrease in blood
pressure that often causes shock.
Myocardial Ischemia: A part of the heart
muscle does not receive enough oxygen.
Myocarditis: A rare condition where the
heart muscle becomes inflamed as a result of infection, toxic drug poisoning, or
diseases like rheumatic fever, diphtheria, or tuberculosis.
Myocardium: The muscular wall of the
heart. It contracts to pump blood out of the heart and then relaxes as the heart
refills with returning blood.
Myxomatous Degeneration: A connective
tissue disorder that causes the heart valve tissue to weaken and lose
elasticity.
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