The aim of this study was to evaluate the mid-term clinical status of patients following tetralogy of Fallot (TOF) repair. We performed a cross-sectional observational analysis of 57 postoperative TOF patients and 58 age-matched controls. Patients were examined with myocardial performance index (MPI), which was obtained by tissue Doppler imaging (TDI) in addition to the conventional methods. Co...

Objective: Heart failure is one of the most important disease which threats population’s health. Its prevalance increases both in our country and world years. Nebivolol a molecule proved its efficacy treatment heart failure. The aim this study was to evaluate changes echocardiographic parameters such as tissue doppler imaging myocardial performance index (MPI) after 6 months nebivolol patients ...

BACKGROUND Color tissue Doppler imaging M-mode through the mitral leaflet is an easy and precise method to estimate all cardiac time intervals from 1 cardiac cycle and thereby obtain the myocardial performance index (MPI). However, the prognostic value of the cardiac time intervals and the MPI assessed by color tissue Doppler imaging M-mode through the mitral leaflet in patients with ST-segment...

BACKGROUND Many syncopes resulting from neural reflexes in various conditions are called neurocardiogenic syncope (NCS). We aimed to investigate the presence of left ventricular (LV) myocardial performance index (MPI) in patients with NCS, which was diagnosed with head-up tilt table test (HUTT), and the accurateness of the test in order to use it as a method in patients with NCS. Assuming the M...

AIMS To describe tissue Doppler time intervals and derived indices in hypoplastic left heart syndrome (HLHS) across surgical stages, taking account of age-related changes in the heart rate. Correlation of the myocardial performance index (MPI) and the systolic to diastolic (S:D) time ratio with other echocardiographic and magnetic resonance imaging (MRI) measures of cardiac performance. METHO...

OBJECTIVES To evaluate the predictive value for perinatal death of the myocardial performance index (MPI) and aortic isthmus flow index (IFI), as isolated parameters and in a combined model including currently used Doppler indices, in preterm growth restricted (IUGR) fetuses. METHODS Umbilical artery, fetal middle cerebral artery (MCA) and ductus venosus (DV) pulsatility indices (PIs) were re...

The neonatal heart is different from the adult in regard to both biochemical and structural features. Echocardiographic studies human neonatology show that myocardial function of left ventricle (LV) premature infants differs term infants. No study involving performance index (MPI) animals has been performed until now. objective present was evaluate LV MPI calves compare it healthy newborn calve...

BACKGROUND Electrocardiogram (ECG)-based detection of ischemia is typically dependent on identifying changes in repolarization. Analysis of high-frequency QRS (HFQRS) components, related to the depolarization phase of the cardiac action potential, has been reported to better identify ischemia. Our aim was to test the hypothesis that HFQRS analysis is both more sensitive and specific than standa...

Radionuclide myocardial perfusion imaging (MPI) plays a vital role in the evaluation and management of patients with coronary artery disease. However, because of a steep growth in MPI in the mid 2000s, concerns about inappropriate use of MPI and imaging-related radiation exposure increased. In response, the professional societies developed appropriate-use criteria for MPI. Simultaneously, novel...