Role of age on transmitral flow velocity patterns in assessing left ventricular diastolic function in normal infants and children.
This study demonstrated that both peak E and flow velocity integral of early diastole increased to reach the older children's values by 36 months of age and leveled off thereafter, whereas both peak A and flow velocity integral of atrial contraction had little change. These results suggest that age-related changes in E wave reflect the maturational or developmental alterations in LV diastolic properties, especially in the relaxation process.
Harada
K
K
Department of Pediatrics, Akita University School of Medicine, Japan.
Suzuki
T
T
Tamura
M
M
Ito
T
T
Takahashi
Y
Y
Shimada
K
K
Takada
G
G
D000293:Adolescent; D000367:Age Factors; D016275:Atrial Function; D001783:Blood Flow Velocity; D002648:Child; D002675:Child, Preschool; D003971:Diastole; D015150:Echocardiography, Doppler; D005260:Female; D006325:Heart Atria / Q000000981:diagnostic imaging; D006339:Heart Rate; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D016018:Least-Squares Analysis; D008297:Male; D008943:Mitral Valve / Q000000981:diagnostic imaging / Q000502:physiology*; D009200:Myocardial Contraction; D016277:Ventricular Function, Left