Based on the results of our study, we concluded that IVRa velocity is an important pw-TDI parameter in the evaluation of LVDDF, especially in differentiating pseudonormal LVDDF type from normal LV inflow.

The question whether DHF is a reality or all heart failures are systolic may be answered as follows. Subtle systolic dysfunction may be associated with the tendency to develop DHF in patients with preserved LV ejection fraction. As in systolic heart failure (EF < 45%), in patients with preserved systolic function (EF > or = 45%), systolic and diastolic functions may impair together. The pw-TDI method may be more sensitive than standard echocardiography parameters in detection of systolic dysfunction in cases with preserved EF.

No abstract

IVRa velocity exhibits a positive correlation with LV geometry changes indicating that IVRa velocity is affected by LV geometry like the other parameters influenced by LV geometry.

In obese patients without CAD, it was clearly said that while LVLCA were evident, LV circumferential contraction abnormalities were not. This differentiation may be explained by subepicardial myocardial fiber that is responsible for LV circumferential contractions is supplied by coronary arteries, subendocardial myocardial fiber that is responsible for LV longitudinal contractions, is supplied by systemic circulation via LV cavity penetration.