Talk:Cardiovascular System - Circulation Development
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Cite this page: Hill, M.A. (2026, March 21) Embryology Cardiovascular System - Circulation Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Talk:Cardiovascular_System_-_Circulation_Development |
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Note - This sub-heading shows an automated computer PubMed search using the listed sub-heading term. References appear in this list based upon the date of the actual page viewing. Therefore the list of references do not reflect any editorial selection of material based on content or relevance. In comparison, references listed on the content page and discussion page (under the publication year sub-headings) do include editorial selection based upon relevance and availability. (More? Pubmed Most Recent)
Circulation Embryology
<pubmed limit=5>Circulation Embryology</pubmed>
Cardiovascular System Development
<pubmed limit=5>Cardiovascular System Development</pubmed>
2016
Infrahepatic inferior caval and azygos vein formation in mammals with different degrees of mesonephric development
J Anat. 2016 Mar;228(3):495-510. doi: 10.1111/joa.12423. Epub 2015 Dec 11.
Hikspoors JP1, Mekonen HK1, Mommen GM1, Cornillie P2, Köhler SE1, Lamers WH1,3.
Abstract
Controversies regarding the development of the mammalian infrahepatic inferior caval and azygos veins arise from using topography rather than developmental origin as criteria to define venous systems and centre on veins that surround the mesonephros. We compared caudal-vein development in man with that in rodents and pigs (rudimentary and extensive mesonephric development, respectively), and used Amira 3D reconstruction and Cinema 4D-remodelling software for visualisation. The caudal cardinal veins (CCVs) were the only contributors to the inferior caval (IVC) and azygos veins. Development was comparable if temporary vessels that drain the large porcine mesonephros were taken into account. The topography of the CCVs changed concomitant with expansion of adjacent organs (lungs, meso- and metanephroi). The iliac veins arose by gradual extension of the CCVs into the caudal body region. Irrespective of the degree of mesonephric development, the infrarenal part of the IVC developed from the right CCV and the renal part from vascular sprouts of the CCVs in the mesonephros that formed 'subcardinal' veins. The azygos venous system developed from the cranial remnants of the CCVs. Temporary venous collaterals in and around the thoracic sympathetic trunk were interpreted as 'footprints' of the dorsolateral-to-ventromedial change in the local course of the intersegmental and caudal cardinal veins relative to the sympathetic trunk. Interspecies differences in timing of the same events in IVC and azygos-vein development appear to allow for proper joining of conduits for caudal venous return, whereas local changes in topography appear to accommodate efficient venous perfusion. These findings demonstrate that new systems, such as the 'supracardinal' veins, are not necessary to account for changes in the course of the main venous conduits of the embryo. © 2015 Anatomical Society. KEYWORDS: azygos vein; caudal cardinal veins; human; inferior caval vein; mesonephros; mouse; pig
PMID 26659476
Bilateral internal carotid artery segmental agenesis: embryology, common collateral pathways, clinical presentation and clinical importance of a rare condition
World Neurosurg. 2016 Aug 12. pii: S1878-8750(16)30678-7. doi: 10.1016/j.wneu.2016.08.012. [Epub ahead of print]
Alexandre AM, Visconti E, Schiarelli C, Frassanito P, Pedicelli A.
Abstract
BACKGROUND: Bilateral segmental agenesis of the internal carotid artery is a very rare congenital anomaly. We present a case of bilateral internal carotid artery segmental agenesis in an asymptomatic 18-old man. Embryology, common collateral pathways, clinical presentation and clinical importance of this condition are discussed. According to our review of the literature, this report is the first to describe bilateral internal carotid artery segmental agenesis in a patient studied with MRI, CT, Doppler-US and DSA. CASE DESCRIPTION: an 18-year-old man presented to our hospital complaining of occasional mild headaches. Neurologic examination was unremarkable. Imaging findings consisted with a bilateral segmental agenesis of internal carotid arteries CONCLUSION: Bilateral segmental agenesis of internal carotid artery may be completly asimptomatic and harmless, but associated conditions, such as cerebral aneurysms or abnormal collateral circulation, should alert clinicians to the possibilities of subarachnoid haemorrhage or cerebral ischemia. Copyright © 2016 Elsevier Inc. All rights reserved. PMID 27535626
