Abstract 9091: Age-Related Physiological Valvular Regurgitation: A Color Doppler Echocardiographic Study In The Current Era
Background: Previous studies conducted > 20 years ago have reported age-related prevalence of valvular regurgitation in healthy subjects. Although echo Doppler machines have dramatically advanced during a quarter of a century, age-related prevalence of valvular regurgitation detected by using currently available echo Doppler machine remains uncertain.
Purpose: The aim of this study was to investigate age-related differences in the prevalence of valvular regurgitation in healthy individuals.
Methods: A total of 1,333 apparently healthy individuals without known cardiac diseases or hypertension were enrolled in this study. Echocardiographic examinations were performed using a commercially available machine (Vivid 7, GE medical). By color Doppler echocardiography, presence or absence of aortic, mitral and tricuspid regurgitation was investigated.
Results: (Table) Mitral regurgitation was detected in two-thirds of the subjects > 30 years old. Tricuspid regurgitation was frequently (>80%) detected in all age groups. On the other hand, aortic regurgitation was detected less frequentlyb (< 10%) in younger subjects. Prevalence of aortic regurgitation increases with advancing age and reaches 46 % in their 9th decades. In general, prevalence of valvular regurgitation in healthy subjects was higher than that reported previously.
Conclusion: In healthy subjects, aortic, mitral or tricuspid valvular regurgitation is commonly detected by a currently available echo Doppler machine. These “physiological” valvular regurgitations should not be considered as a “pathological” valvular heart disease.
- © 2010 by American Heart Association, Inc.