Reference : Shunting the intervillous space: New concepts in human uteroplacentat vascularization
Scientific journals : Article
Human health sciences : Reproductive medicine (gynecology, andrology, obstetrics)
http://hdl.handle.net/2268/733
Shunting the intervillous space: New concepts in human uteroplacentat vascularization
English
Schaaps, Jean-Pierre mailto [Université de Liège - ULg > Département des sciences biomédicales et précliniques > Embryologie >]
Tsatsaris, Vassilis [> > > >]
Goffin, Frédéric mailto [Centre Hospitalier Universitaire de Liège - CHU > > Gynécologie-Obstétrique CHR >]
Brichant, Jean-François [Université de Liège - ULg > Département des sciences cliniques > Anesthésie et réanimation >]
Delbecque, Katty mailto [Centre Hospitalier Universitaire de Liège - CHU > > Anatomie pathologique >]
Tebache, Malek [> > > >]
Collignon, Laurent [> > > >]
Retz, Maria Christina [> > > >]
Foidart, Jean-Michel mailto [Université de Liège - ULg > Département des sciences cliniques > Gynécologie - Obstétrique >]
Jan-2005
American Journal of Obstetrics and Gynecology
Mosby, Inc
192
1
323-332
Yes (verified by ORBi)
International
0002-9378
St Louis
[en] physiology ; placenta ; arteriovenous ; shunt ; uteroplacental circulation ; three-dimensional vascular Doppler ; pregnancy
[en] Objective: It is supposed that the intervillous space. is not perfused by maternal blood during the first trimester, suggesting vascular shunts in the myometrium. We therefore attempted to provide arguments for a functional vascular anastomotic network located in the placental bed during human pregnancy. Study design: Three-dimensional (3D) sonogyraphy, laboratory analyses. and anatomic studies (hysterectomy specimens, uteroplacental vascular cast) were performed. Results: Color Doppler showed a vascular network with anastomotic aspect located in the placental bed. A vascular cast of a uterus. obtained after postpartum hemorrhage. demonstrated a vascular anastomotic network in the myometrium. Higher Po-2 levels in the uterine vein compared with the intervillous space confirmed the functional nature of this Shunt. Low resistances in the uterine arteries during the first week after delivery suggested that this vascular network remains functional after placental expulsion. Conclusion: Our studies have yielded functional and anatomic evidence of an arteriovenous Shunt located in the subplacental myometrium. (C) 2005 Elsevier Inc. All rights reserved.
http://hdl.handle.net/2268/733
10.1016/j.ajog.2004.06.066

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