Abstract
We present a case of a patient who was pregnant and had symptomatic, intermittent obstruction of her St Jude mitral prosthesis showing a very unique Doppler flow pattern suggesting impaired disk movement with every other cardiac cycle. Mechanism of this "obstruction alternans" is discussed.
MeSH terms
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Adult
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Echocardiography
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Echocardiography, Doppler*
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Female
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Heart Atria / diagnostic imaging
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Heart Atria / pathology
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Heart Atria / surgery
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Heart Valve Prosthesis / adverse effects*
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Heart Ventricles / diagnostic imaging
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Heart Ventricles / pathology
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Heart Ventricles / surgery
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Humans
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Mitral Valve / diagnostic imaging*
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Mitral Valve / pathology
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Mitral Valve / surgery*
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Mitral Valve Stenosis / diagnosis
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Mitral Valve Stenosis / etiology
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Pregnancy
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Pregnancy Complications, Cardiovascular / diagnosis
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Pregnancy Complications, Cardiovascular / etiology
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Prosthesis Design
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Prosthesis Failure