Mitral Valve Regurgitation

What is mitral valve regurgitation characterized by?

• Complete closure of the mitral valve during systole.

• Backflow of blood into the left atrium during systole.

• Increased pressure in the right atrium during diastole.

• Backflow of blood into the right ventricle during diastole.

List one common cause of mitral valve regurgitation.

• Pulmonary hypertension

• Aortic stenosis

• Tricuspid valve prolapse

• Mitral valve prolapse

How does mitral valve regurgitation affect stroke volume?

• Mitral valve regurgitation only affects diastolic volume.

• Mitral valve regurgitation decreases effective stroke volume.

• Mitral valve regurgitation increases effective stroke volume.

• Mitral valve regurgitation has no effect on stroke volume.

What can cause acute mitral valve regurgitation?

• Coronary artery disease

• Rupture of chordae tendineae, papillary muscle rupture, infective endocarditis, trauma

• Aortic stenosis

• Pulmonary embolism

Explain the role of chordae tendineae in mitral valve function.

• The chordae tendineae connect the mitral valve to the aorta.

• The chordae tendineae prevent the mitral valve leaflets from prolapsing into the left atrium during ventricular contraction.

• The chordae tendineae are responsible for opening the mitral valve during diastole.

• The chordae tendineae help in the formation of blood clots in the heart.