J Cardiovasc Thorac Res / 19 Original Article Tissue Doppler Imaging Values in Hypertrophic Cardiomyopathy According to Left Ventricular Outflow Gradient Rezvaneh Salehi MD, Azin Alizadehasl MD 1. Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran. (Received 21 May 2010; Accepted 17 Sep 2010) Background: The aim of the present study was to investigate the effect...

BACKGROUND There is only scanty data on tissue Doppler imaging (TDI) of 'normal' adults. METHODS Twenty eight asymptomatic adults (20-45 yrs) without cardiovascular risk factors, clinic BP < or = 120/80mmHg and normal echocardiographic examination were evaluated by tissue Doppler imaging to find normal reference values in this population. RESULTS There was significant heterogeneity in TDI v...

BACKGROUND A limited number of studies have used Tissue Doppler Imaging (TDI) to evaluate the effect of statin therapy on left ventricular dysfunction in patients with chronic heart failure. In this work, we aimed to determine whether statin administration influenced prognosis, inflammatory activation and myocardial performance evaluated by Tissue Doppler Imaging in subjects enrolled in the Dau...

In this study, tissue Doppler imaging (TDI) was used to assess changes in ventricular function following repair of congenital heart defects. The relationship between TDI indices, myocardial injury and clinical outcome was explored. Forty-five children were studied; 35 with cardiac lesions and 10 controls. TDI was performed preoperatively, on admission to paediatric intensive care unit (PICU) an...

Objective To compare tissue-velocity MRI (TV-MRI) and tissue Doppler imaging (TDI) to assess regional right ventricular (RV) diastolic performance at the RV free wall (RVFW) and at the RV outflow tract (RVOT) in patients with corrected Tetralogy of Fallot (cToF) and in healthy controls. To compare regional diastolic velocities and performance of the RV between cToF patients and controls. To inv...

M itral annular velocities derived from pulsed tissue Doppler imaging (TDI) were recently demonstrated to complement the analysis of systolic and diastolic left ventricular (LV) performance in different clinical settings. 2 The early diastolic mitral annular velocity (E9) was found to behave as a preload independent index of relaxation. The mitral E/E9 ratio (that is, the mitral E velocity corr...

BACKGROUND New techniques of Tissue Doppler Imaging (TDI) enable the measurement of myocardial velocities and provide information about left ventricular (LV) diastolic function. Recent studies explored the prognostic role of TDI-derived indexes. However, these studies considered only total mortality and did not provide information on cardiovascular mortality and morbidity. Therefore, we investi...

INTRODUCTION AND OBJECTIVES Postoperative atrial fibrillation is a common complication of carrying out cardiac surgery with extracorporeal circulation (ECC). The aim of this study was to determine whether preoperative left atrial contractile dysfunction, as assessed by tissue Doppler echocardiography, is associated with the development of postoperative new-onset atrial fibrillation (PAF). MET...

BACKGROUND Postoperative atrial fibrillation (POAF) is a common complication of cardiac surgery and results in increased health-care utilization. This study identified new transthoracic echocardiographic predictors of POAF using an index of the total atrial conduction time derived on tissue Doppler imaging (PA-TDI duration) in patients undergoing off-pump coronary artery bypass grafting (OPCAB)...