J Korean Soc Echocardiogr.  1995 Dec;3(2):151-158. 10.4250/jkse.1995.3.2.151.

Clinical Study of Healthy Young Men with Mitral Valve Prolapse

• Chang KS
• An GW
• Hong SP
• Kim YC

• KMID: 2410417
• DOI: http://doi.org/10.4250/jkse.1995.3.2.151

Abstract

BACKGROUND
Mitral valve prolapse(MVP) is now recognized as noe of the most common cardiovascular disorders, particularly in young women with a slender body habitus. However, there is little clinical information about young men with mitral valve prolapse. The purpose of this study was to evaluate the physical and echocardiographic characteristics of young men about 20 years old with mitral valve prolapse. METHOD: Twenty young men with mitral valve prolapse(MVP graoup, mean age ; 19.9±2.4 years) and twenty healthy volunteers(control group, mean age ; 19.9±3.2 years) were examined using physical examination, chest X-ray, computed thoracic tomography and two dimensional and Doppler echocardiography.
RESULTS
Compared with control group, MVP group had a smaller chest circumference(p < 0.001), a larger height-arm span difference(p < 0.01), smaller anteroposterior chest diameters(by chest X-ray ; p < 0.001 and computed tomography ; p < 0.01) and smaller anteroposterior/transverse chest diameter ratio(chet X-ray ; p < 0.01 and computed tomography ; p < 0.05). In MVP group, mitral regurgitation was noted 15 men(75%), those had posteriorly directed jets suggesting anterior mitral leaflet anomalies.
CONCLUSION
Healthy young men having mitral valve prolapse had narrow chest and slender physical characteristics and anterior mitral leaflet abnormalities.

Keyword

Mitral valve prolapse; Physical characteristics; Echocardiography

MeSH Terms

Clinical Study*
Echocardiography
Echocardiography, Doppler
Female
Humans
Male
Methods
Mitral Valve Insufficiency
Mitral Valve Prolapse*
Mitral Valve*
Physical Examination
Thorax

Figure

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  Fig. 1. Left, Computed thoracic tomography of a patient with pectus excavatum: transverse diameter measuring the inner borders of the right and left ribs at the level of the eighth thoracic vertebra, and anteroposterior diameter measuring the inner borders of the anterior and posterior ribs at the level of the eighth thoracic vertebra. Right, Posteroanterior and lateral chest X-ray films of a patient with straight back: transverse diameter measuring the inner borders of the right and left ribs at the level of the dome of diaphragm, and anteroposterior diameter measuring the inner borders of the anterior and posterior ribs at the level of the eighth thoracic vertebra.

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  Fig. 2. Transthoracic(left) and transesophageal echocardiogram(right) show systolic doming(arrow) of the anterior mitral valve into the left atrium.

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  Fig. 3. Parasternal long axis echocardiograms showing systolic prolapse of the anterior mitral valve(arrow, right) and M-mode echocardiograms of the same patient showing holosystolic prolapse of the anterior mitral valve(two arrows, left).

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  Fig. 4. Parasternal long axis views show redundancy and billowing of anterior leaflet of mitral valve(left) and posteriorly directed turbulent jet from anterior leaflet of mitral valve(right).

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  Fig. 5. Parasternal long axis view(left) shows posteriorly directed turbulent jet from anterior leaflet, and parasternal short axis view(right) shows that jet originated from lateral portion of anterior leaflet.

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  Fig. 6. Modified parasternal long axis views show redundancy of anterior leaflet of mitral valve(left, arrows) and two posteriorly directed jets from anterior leaflet of mitral valve(right).

Reference

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