Q.All true regarding Diastolic dysfunction except
a.present in over 25 % of adults
b.primary cause of approx . 50 % of heart failure cases
c.best evaluated with 2D echo with Doppler study
d.the main cause of diastolic dysfunction are the same conditions that result in systolic dysfunction
e.right atrial volume is a useful indicator of the presence ,chronicity and severity of the left ventricular dysfunction
ANS
e
Upstream ,left atrial function has an important effect on left ventricular filling .Since the left ventricle acts as both conduit and pump ,its ability to transfer blood to the ventricle essentially defines the left ventricular filling .So left atrial volume is a useful indicator of the presence ,chronicity and severity of the left ventricular dysfunction .
Chronic elevation in arterial pressure also affect left ventricular relaxation and chamber compliance .
