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Exp Clin Cardiol. 2010 Spring;15(1):e13-5.

Prevalence of mitral valve prolapse and associated valvular regurgitations in healthy teenagers undergoing screening echocardiography.

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  • 1Department of Medicine, Division of Cardiology, University of Arizona School of Medicine, Southern Arizona VA Health Care System and Sarver Heart Center, Tucson;

Abstract

BACKGROUND:

The true prevalence of mitral valve prolapse (MVP) in the population has been controversial.

OBJECTIVE:

To evaluate the prevalence of MVP and associated valvular abnormalities in healthy teenage students.

METHODS:

The Anthony Bates Foundation performed screening echocardiography in high schools across the United States. A total of 2072 students between 13 and 19 years of age were identified for the present study.

RESULTS:

Total prevalence of MVP was 0.7%. The prevalence of MVP was significantly higher among female teenagers (nine of 690 female teenagers [1.3%] versus five of 1382 male teenagers [0.4%], P=0.01, OR 3.6, CI 1.21 to 10.70). The prevalence of mitral regurgitation (MR) and tricuspid regurgitation (TR) was higher in teenagers with MVP. MR occurred in five of 14 teenagers (35.7%) with MVP versus 15 of 2058 controls (0.7%) (P<0.001, OR 75.6, CI 22.6 to 252.5). TR occurred in one of 14 teenagers (7.1%) with MVP versus nine of 2058 controls (0.4%) (P<0.001, OR 17.5, CI 2.0 to 148.3).

CONCLUSION:

The prevalence of MVP in this cohort of healthy teenage students was less than 1%. Furthermore, the prevalence of MVP was higher in female teenagers and was associated with a higher prevalence of MR and TR.

KEYWORDS:

Adolescence; MVP; Mitral valvar prolapse; Screening; Teenagers; Valvular disease

PMID:
20664768
PMCID:
PMC2907880
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