Background: Studies on physical activity during pregnancy and its impact mother fetus are still limited. International protocols consider only aerobic exercise fail to provide information about other modalities such as isometric exercise. Isometric promotes cardiorespiratory resistance muscle strengthening, but it is rarely tested pregnant women because increases maternal blood pressure can sub...

Background: The fetal ductus venosus (DV) is an important vessel that connects the umbilical vein (UV) to proximal end of inferior vena cava (IVC). DV abnormality often leads poor outcome. Thus, careful prenatal ultrasound for diagnosis major clinical significance. Methods: We conducted a retrospective analysis 166 cases diagnosed with by ultrasonography. type abnormality, aberrant connection, ...