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...

BACKGROUND This study was designed to determine if vertically transmitted HIV infection and maternal infection with HIV are associated with altered cardiovascular structure and function in utero. METHODS Fetal echocardiography was performed in 173 fetuses of 169 HIV-infected mothers (mean gestational age, 33.0 weeks; SD = 3.7 weeks) at 5 centers. Biparietal diameter, femur length, cardiovascu...

Deep neural networks have increased the accuracy of automatic segmentation, however their depends on availability a large number fully segmented images. Methods to train deep using images for which some, but not all, regions interest are necessary make better use partially annotated datasets. In this paper, we propose first axiomatic definition label-set loss functions that can handle We prove ...

: Hemodynamic changes accompanying the initial breaths at time of birth are especially important for a smooth transition fetal to neonatal circulation. Understanding normal transitional physiology and clinical impact adverse adaptation is delineating pathology so as guide physiologically relevant therapies. Disorders such severe perinatal asphyxia, hemodynamically significant patent ductus arte...

echocardiography is a non-invasive diagnostic technique which provides information regarding cardiac function and hemodynamics. it is the most frequently used cardiovascular diagnostic test after electrocardiography and chest x-ray. however, in a patient with acute chest pain, transthoracic echocardiography is essential both for diagnosing acute coronary syndrome, zeroing on the evaluation of v...

We describe the case of a significant fetal atrial septal aneurysm causing left ventricular inflow obstruction. Serial fetal echocardiograms demonstrated potential left heart hypoplasia. The fetal cardiologist guided the perinatal team to electively deliver the infant early and modify the course of developing hypoplastic left heart.

introduction: we aimed to assess whether the vasodilator effect of oral dipyridamole on the left ventricular systolic function in patients with suspected cad is different from that of intravenous (iv) dipyridamole using tc-99m mibi myocardial perfusion gated spect. methods: eighty-nine patients (17 m / 72 w; 61 ± 10 years) were enrolled in this study. the patients underwent a dipyridamole stres...

background: the right ventricular (rv) dyssynchrony has not been studied extensively and the existing literature has established the effect of cardiac resynchronization therapy (crt) on the left ventricular (lv) dyssynchrony, but there is a dearth of data on the effect of crt on the forgotten ventricle . we sought to evaluate the presence of mechanical right ventricular dyssynchrony in patients...

background: there is some evidence indicating improvement in myocardial performance after atrial septal defect closure, either device closure or surgical, but ventricular dyssynchrony has not been evaluated before and after surgical closure. the aim of this study was to evaluate ventricular mechanical dyssynchrony in patients with atrial septal defect before and after surgical closure. methods:...