OBJECTIVES We evaluated the utility of tissue Doppler-derived right ventricular (RV) Tei (or myocardial performance) index in patients with chronic thromboembolic pulmonary hypertension (CTEPH) before and after pulmonary thromboendarterectomy (PTE) and assessed correlations with mean pulmonary artery pressure (mPAP), pulmonary vascular resistance (PVR), and cardiac output (CO). BACKGROUND The...

AIM Epicardial adipose tissue (EAT) is a tissue around the heart with visceral adipose properties. It can affect the structure and functions of the myocardium and coronary arteries through inflammatory markers and regulators. The myocardial performance (Tei) index is a parameter capable of globally assessing systolic and diastolic heart functions. This study investigated the relation between EA...

BACKGROUND AND OBJECTIVES Although the Tei index is a useful predictor of global ventricular function, it has not been investigated at the level of regional myocardial function. We therefore investigated the segmental tissue Doppler image derived-Tei index (TDI-Tei index) in patients with regional wall motion abnormalities. SUBJECTS AND METHODS We prospectively studied 17 patients (mean age 6...

PURPOSE Tetralogy of Fallot is a congenital heart disease characterized by underdevelopment of the right ventricular infundibulum. Present study aimed to explore the clinic value of Tei index in assessing right ventricular function of pediatric patients with repaired Tetralogy of Fallot. METHODS A total of 45 pediatric patients with repaired Tetralogy of Fallot were recruited and classified i...

OBJECTIVE To assess the accuracy of echocardiography for predicting pulmonary arterial hypertension (PAH) in a cohort of patients with systemic sclerosis and other connective tissue diseases, and to evaluate whether addition of the right ventricular (RV) Tei-index contributes to the non-invasive diagnosis of PAH in this patient group. PATIENTS AND METHODS Ninety-eight patients with systemic s...

The goal of this study was to evaluate the preejection time (PEP)-derived myocardial performance index (MPI) in hypertensive (HT) patients with sinus rhythm and its relationship to the classic Tei index. One hundred five patients were enrolled in the study (65 HT and 40 control subjects). The mean age of all patients was 50.5 ± 15 years and 60% were female. Echocardiography was performed on all...

The myocardial performance index (Tei index) determined by the pulsed Doppler is a simple and noninvasive measurement for assessing global left ventricular (LV) function. This index can also be obtained by tissue Doppler imaging (Tei-TDI). The purpose of our study was to assess the relationship between Tei-TDI and N-terminal pro-brain natriuretic peptide (NTproBNP) levels in patients with dilat...

INTRODUCTION Left ventricular geometry is associated with cardiovascular events and prognosis. The Tei index of myocardial performance is a combined index of systolic and diastolic dysfunction and has been shown to be a predictor of cardiovascular outcome in heart diseases. The relationship between the Tei index and left ventricular geometry has not been well studied. This study examined the as...

inroduction: heart failure (hf) is an important cause of morbidity and mortality in the cases of beta-thalassemia major. the purpose of this study was to estimate hf prevalence in these patients and to assess the survivability of those who were treated with intensive chelating therapy.   design and methods: this cross sectional study included 72 beta-thalassemia major cases, the mean age at the...

OBJECTIVE The cardiovascular system maintains homeostasis through a series of adaptive responses to physiological requirements. However, little is known about the adaptation of fetal cardiac function to gravity, according to gestational age. In the present study, we aimed to evaluate the adaptive responses of cardiac function to postural changes, using Tei index measurements. METHODS Fetal ec...