Results
A total of 967 healthy participants were enrolled in this study after
applying exclusion criteria. Echocardiographic examination was obtained
from all subjects following predefined protocols. Mitral E wave velocity
and E/A ratio were higher in females and decreased progressively in
advancing ages. E wave deceleration time and A wave velocity were
increased with aging. Assessment of tissue Doppler velocities showed
that left ventricular lateral e’, septal e’ and septal s’ were higher in
younger subjects and in females. E/e’ ratio was increased progressively
with advancing decades. Right ventricular e’and s’ were decreased but a’
was increased with increasing age. Septal e’ lower than 8 cm/s was 1.9%
in the fifth decade and 13.7% in ages older than 50-years. The E/e’
ratio greater than 15 (and also 13) was not found.