منابع مشابه
Neonatal mortality in dogs: Prognostic value of Doppler ductus venosus waveform evaluation - Preliminary results
AIM To define the prognostic value of Doppler ultrasonographic morphology of ductus venosus (DV) waveform on canine neonatal mortality. MATERIALS AND METHODS Fifty-four healthy pregnant bitches underwent fetal ultrasonographic assessment. The DV waveforms were classified as diphasic (dDVw) or triphasic (tDVw) and compared with neonatal mortality. RESULTS Ninety-three fetuses were evaluated....
متن کاملThe ductus venosus and the mechanism of its closure.
Although recognized since Vesalius as one of the distinguishing features of the foetal circulation, the precise function of the ductus venosus is uncertain. Anatomically, it provides a direct connexion between the umbilical vein and the inferior vena cava. Functionally, it represents a bypass through which part of the oxygenated umbilical blood flows directly into the inferior vena cava. Howeve...
متن کاملThe aryl hydrocarbon receptor is required for developmental closure of the ductus venosus in the neonatal mouse.
A developmental role for the Ahr locus has been indicated by the observation that mice harboring a null allele display a portocaval vascular shunt throughout life. To define the ontogeny and determine the identity of this shunt, we developed a visualization approach in which three-dimensional (3D) images of the developing liver vasculature are generated from serial sections. Applying this 3D vi...
متن کاملHepatic manifestations of familial patent ductus venosus in adults.
BACKGROUND The ductus venosus connects the umbilical vein to the inferior vena cava during fetal life and subsequently closes rapidly after birth. It is known as patent ductus venosus when it remains patent in adulthood. PATIENTS A 43 year old man with a history of panhypopituitarism presented with recurrent bouts of pedal oedema associated with fatigue, hypoalbuminaemia, and elevated prothro...
متن کاملFunctional morphology of ductus venosus in human fetus.
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)...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society of Medicine
سال: 1969
ISSN: 0035-9157
DOI: 10.1177/003591576906200404