OBJECTIVES The morphology of region umbilical vein, umbilical sinus and ductus venosus of human fetuses have been investigated. MATERIAL AND METHODS 26 human fetuses between 20 and 40 weeks' gestation were examined by morphological methods. The umbilical vein, DV and the portal vein were obtained after termination of gestation. Tissue samples have been fixed in phormaldehyde solution (pH 7,2)...

AFTER the postnatal mammalian circulation has been established, blood flows serially from the systemic veins through the right side of the heart to the lungs, then to the left atrium and ventricle, which ejects the blood into the aorta to be distributed to the body, after which it returns to the systemic venous system. Apart from a small amount of coronary venous blood which enters the left ven...

AFTER the postnatal mammalian circulation has been established, blood flows serially from the systemic veins through the right side of the heart to the lungs, then to the left atrium and ventricle, which ejects the blood into the aorta to be distributed to the body, after which it returns to the systemic venous system. Apart from a small amount of coronary venous blood which enters the left ven...

We present a case of 51-year-old patient after surgical closure of atrial septal defect several years ago. Enlarged right ventricle, right atrium and pulmonary hypertension were found on routine transthoracic echocardiography. Transesophageal echocardiography revealed sinus venosus atrial septal defect. Partial anomalous pulmonary venous drainage was suspected. Only the computed tomography with...

ABSTRACTThe valves of right horn of systemic venous sinus are prominent structures within the right atrium during early embryonic period. Involution of these structures may not be complete, resulting in a spectrum of anatomical presentations such as cyanosis. A full-term male neonate referred to our hospital for precise evaluation of severe cyanosis on the first day of life. Echocardiographic e...

Fetal hydrops in a newborn infant with hypoplastic left heart syndrome led to the discovery of tricuspid stenosis and insufficiency from an unusual malformation of the right venous valve of the embryonic sinus venosus. This unfortunate combination of lesions precluded surgical palliation for the hypoplastic left heart.