Mild MS (MVA) is defined as MVA greater than which value?

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Prepare for the Ultrasound Registry Review (URR) MV Abnormalities and Disease Test. Enhance your studies with quizzes, flashcards, and detailed explanations. Pass your exam with confidence!

Multiple Choice

Mild MS (MVA) is defined as MVA greater than which value?

Explanation:
Mitral stenosis severity is determined by the effective mitral valve area (MVA). A normal MVA is roughly 4–6 cm²; as the valve orifice narrows, the area decreases and gradients rise. Mild mitral stenosis corresponds to an MVA greater than 1.5 cm², which means the obstruction is relatively small. Moderate stenosis falls in about 1.0–1.5 cm², and severe stenosis is less than 1.0 cm². So the correct choice is the value describing an MVA greater than 1.5 cm². The other ranges imply moderate or severe stenosis rather than mild.

Mitral stenosis severity is determined by the effective mitral valve area (MVA). A normal MVA is roughly 4–6 cm²; as the valve orifice narrows, the area decreases and gradients rise. Mild mitral stenosis corresponds to an MVA greater than 1.5 cm², which means the obstruction is relatively small. Moderate stenosis falls in about 1.0–1.5 cm², and severe stenosis is less than 1.0 cm². So the correct choice is the value describing an MVA greater than 1.5 cm². The other ranges imply moderate or severe stenosis rather than mild.

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