INTRODUCTION The myocardial performance index (MPI) has been described as a non-invasive Doppler measurement of ventricular function. The aim of this study was to assess MPI following surgical correction of ventricular septal defect (VSD) and to evaluate its impact on postoperative recovery. MATERIAL AND METHODS This is a prospective study involving 30 children (16 girls and 14 boys) operated...

background: we sought to assess right ventricular (rv) systolic and diastolic functions via tissue doppler imaging (tdi) in order to discriminate right-to-left (bidirectional) from left-to-right intracardiac shunts. methods: a tissue doppler velocity study via doppler echocardiography was performed in 20 patients with left-to-right shunt (without evidence of significant pulmonary hypertension) ...

abstract introduction: doppler echocardiography is used to evaluate global myocardial performance. an index of myocardial performance (tei index) can be of great prognostic value in heart failure. this study was performed to assess the correlation between tei index (ti) and left ventricular end diastolic pressure (lvedp). methods: the study group consisted of 38 patients. each patient underwent...

the right ventricle (rv) is a complex structure with abstruse function that reveals important differences when compared to the left ventricle (lv), so it cannot be described as a simple geometric form and achromatic physiology. as an inference from this fact, in the present review, we aim to describe rv structure including the embryology, anatomy, and physiology and present a functional, hemody...

backgroundasthma is the most chronic inflammatory disorder of the airways in children and asthmatic patients can experience cardiac dysfunction, pulmonary hypertension and finally cor pulmonale later in life. we aimed to investigate right ventricular (rv) functions in asthmatic children by conventional and tissue doppler echocardiography (tde).materials and methods pulmonary function tests, con...

Abstract Background Thalassemia intermedia is a variety of beta thalassemia which shows clinical symptoms somewhere between asymptomatic carriers and thalassemia major. Cardiac dysfunctions due to chronic anemia and hemosiderosis are the major causes of death in these patients. The purpose of this study is to evaluate cardiac function in these patients by echocardiography. Materials and Met...

We prospectively investigated whether 20'TI single-photon emission computed tomography (SPECT) could accurately diagnose the presence and quantify the extent of acute myocardial infarction when compared with infarct size assessed by plasma MB-creatine kinase activity. Thirty patients with enzymatic evidence of infarction were imaged within 12-36 hours of chest pain (mean, 23.4 hours). No patien...

Postoperative right ventricular (RV) failure is difficult to treat and develops from functional impairment of the underlying free wall and septum. This report describes the vital importance of the ventricular septum in RV structure /function relationships, demonstrates how the helical ventricular myocardial band model defines spatial geometry of the free wall and septum to provide architectural...