نتایج جستجو برای: diastolic indices
تعداد نتایج: 120327 فیلتر نتایج به سال:
BACKGROUND Invasive studies have shown that cardiac resynchronization therapy (CRT) acutely improves left ventricular (LV) systolic performance and lowers filling pressures in a majority of patients with medically-refractory severe heart failure. Measurements included LV volume, ejection fraction, PWD early (E-wave) and atrial (A-wave) velocities, diastolic filling time (DFT), and DTI early dia...
OBJECTIVES To determine normal values for variables of left ventricular diastolic function in children measured by Doppler echocardiography and their relations to body surface area (BSA). BACKGROUND There is increasing interest in echocardiographic assessment of left ventricular diastolic function in children but normal data for children are limited. METHODS Assessment of left ventricular d...
AIMS After tetralogy of Fallot (TOF) repair patients have right ventricular (RV) dysfunction and reduced exercise tolerance. Diastolic dysfunction may be important but is as yet poorly characterized. The early diastolic strain rate (SR) is a measure of ventricular relaxation, and may be useful to assess diastolic mechanics in TOF. We hypothesized that children after TOF repair have diastolic dy...
Aims and Background: Surgery is a factor of anxiety which creates a physiological reaction in body. As a result of this physiological response of the body, breathing, heart rate and blood pressure would increase. The present study was done to evaluate the effect of wordless music on some physiological indices and anxiety of patients. Materials and Methods: This research is a randomized ...
BACKGROUND AND OBJECTIVES It is not well understood whether the left ventricular geometry is associated with such diastolic parameters as the left atrial volume and the left ventricular filling pressure, as assessed by the Doppler indices. Accordingly, this study aimed to evaluate the influence of the left ventricular geometry on the left atrial volume and the left ventricular filling pressure,...
BACKGROUND There is a paucity of published data on tissue Doppler imaging (TDI) in the critically ill. In a critically ill cohort, we studied the distribution of TDI and its correlation with other echocardiographic indices of preload. To aid hypothesis generation and sample size calculation, associations between echocardiographic variables, including the ratio of peak early diastolic transmitra...
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