Background: Left ventricular (LV) diastolic dysfunction (DD) is known to be frequent in the general population and is related to development of heart failure with preserved ejection fraction (HFpEF).
The E/e` ratio obtained from the measurement of early diastolic velocity on transmitral doppler (E) and the early diastolic velocity of mitral valve annulus obtained from tissue doppler (e`) is used as a surrogate marker of increased LV filling pressure for the evaluation of DD, associated with HFpEF. Recent guidelines determined that E/e` ratio>14 is a marker of significant DD.
The prevalence of DD among pts with CVD risk factors is not well described.
Aim: To assess the prevalence of DD as measured by E/e` ratio in a large cohort of pts with CVD risk factors referred for Echocardiography.
Methods: 5832 consecutive pts who underwent Echo-Doppler study, who had a measurement of E/e` ratio and a list of computerized diagnoses from previous hospitalization or outpatient clinic visit were included in the cohort. 315 pts with moderate/severe LV-dysfunction were excluded.
Results:
A multivariate logisitic regression model revealed that independent predictors for DD (OR; 95% CI) were: DM [2.07(1.82-2.38)]; female gender [1.82(1.59-2.08)]; age (per 10 years increase)[1.73(1.63-1.84)] and hypertension [1.52(1.3-1.77)], p-value for all <0.0001.
There was no interaction between DM and hypertension, however, a significant interaction was noted between DM and IHD, [1.43 (1.09-1.78)].
Conclusions: DD is highly prevalent among the elderly, female, diabetic and hypertensive pts which explains the increased risk of HFpEF in this population.