Objective: To examine the relation between longitudinal left ventricular function assessed by tissue Doppler imaging (TDi) and exercise capacity in heart failure. Subjects: 153 patients with chronic heart failure from left ventricular systolic dysfunction (ejection fraction , 45%) and 87 age and sex matched controls. Methods: Echocardiography was used to measure conventional indices of left ven...

BACKGROUND Noninvasive assessment of diastolic filling by Doppler echocardiography provides important information about left ventricular (LV) status in selected subsets of patients. This study was designed to assess whether mitral annular velocities as assessed by tissue Doppler imaging are associated with invasive measures of diastolic LV performance and whether additional information is gaine...

Evaluation of myocardial mechanics, although complex, has now entered the clinical arena, thanks to the introduction of bedside imaging techniques, such as speckletracking echocardiography. Overcoming the limitations of previous techniques, such as tissue Doppler Imaging (TDI), bi-dimensional (2D) and, only recently, three-dimensional (3D) speckle tracking, allows a fast, reproducible, and semi...

Abstract Background Celiac disease (CD) is a chronic immune-mediated disorder with multiple extraintestinal manifestations. The increased incidence of cardiac morbidities in celiac patients highlights the importance early detection subclinical myocardial dysfunctions. In this study, we aimed to assess functions and explore dysfunctions by tissue Doppler imaging. Results A cross-sectional analyt...

Bronchopulmonary dysplasia (BPD) is a chronic lung disease associated with under development of lung tissue, mainly occurring in premature and extremely low birth weight infants. BPD has a poor prognosis in morbidity and mortality but BPD with pulmonary hypertension and right ventricular (RV) dys-function has worse prognosis. 1) Early detection for pulmonary hypertension and RV dysfunction is i...

background: conventional doppler measurements, including mitral inflow and pulmonary venous flow, are used to estimate left ventricular end diastolic pressure (lvedp). however, these parameters have limitations in predicting lvedp among patients with mitral regurgitation. this study sought to establish whether the correlation between measurements derived from tissue doppler echocardiography and...

background: it is not clear whether the latest activation sites in the left ventricle (lv) are matched with infracted regions in patients with ischemic cardiomyopathy (icm). we aimed to investigate whether the latest activation sites in the lv are in agreement with the region of akinesia in patients with icm.   methods: data were analyzed in 106 patients (age = 60.5 ± 12.1 y, male = 88.7%) with...

BACKGROUND Echocardiography is a key screening tool in the diagnostic algorithm of pulmonary hypertension (PH). In addition, tissue doppler imaging (TDI) is a promising method for the noninvasive estimation of pulmonary artery pressure (PAP). OBJECTIVES The aim of this study was to validate the accuracy of measuring the time from the beginning of the right ventricular isovolumetric contractio...