Collaterals of the portal system from a comparative anatomical point of view

1926 ◽  
Vol 22 (3) ◽  
pp. 263-267
Author(s):  
A. P. Nadein ◽  
M. L. Krymgol'ts

When studying the collateral circulation of the portal system in pathological cases (thrombosis, compression, cirrhosis of the liver, etc.), it is possible to find various kinds of collaterals, which, when the portal vein or its branches are turned off, deliver blood to the right heart in a roundabout way, which leads to the preservation vascular balance for a more or less long time. In the article On the anatomy of the portal vein and its collaterals, we present a whole series (24) of such roundabout pathways of the portal circulation.

1960 ◽  
Vol 15 (2) ◽  
pp. 253-254 ◽  
Author(s):  
M. Henry Williams

The percentage of venous admixture to arterialized blood was measured by two different techniques in two groups of patients with cirrhosis of the liver and, in both groups, averaged 9.7% of the cardiac output. Since one of the techniques was based on measurement of the arterial oxygen tension during oxygen breathing, the venous admixture must have resulted from some type of right-to-left shunt. It was not possible to determine whether the right-to-left shunt resulted from anastamoses between the portal system and the bronchopulmonary venous system or from pulmonary arteriovenous communications. Submitted on March 30, 1959


To the Presiding Judge of the 26th Chamber:Having been informed by Marie Bataille of the situation which, after two years of proceedings, will take her before the criminal court, I wish to convey to you my point of view about this affair.For a long time I have been an activist for voluntary motherhood. I believe that a woman has the right to choose to have or to not have a child, and in the first case, to choose the father of her child. Therefore I welcomed the recent law on abortion and before that, the 1972 law on filiation, which requires that the child be recognized in its biologic and sociologic reality....


2021 ◽  
Vol 9 (2) ◽  
pp. 374-394
Author(s):  
Denis N. Maslyuzhenko ◽  

Research objectives: To detect sources and stages for the formation of the concept of the “Siberian Tsardom” in the Russian chronicles and ambassadorial documents from the second half of the sixteenth century. Research materials: This work was carried out on the basis of the analysis of the published sources (chronicles, ambassadorial documents, charters and contracts, travelers’ notes, cartographic data). Results and novelty of the research: In the native historiography, the Shibanid states in the territory of Western Siberia are traditionally referred to as the “Siberian khanate”, terminology which dates back to the famous “Siberian Tsardom” in the Russian sources. An analysis of the written sources and cartography shows that during the fifteenth and first half of the sixteenth century, this notion was not used in any documents in relation to the Shibanids’ possessions. Such terms were most often connected with Tura or East Turan or Tyumen by the Russian authors. As the political interests of the Muscovite rulers expanded east of the Urals, the name “Siberian land” appears in the corresponding sources, which was quite clearly differentiated from neighboring Tyumen for a long time. Only in 1563, during tripartite negotiations of the representatives of the Shibanids, Taibugids, and Ruirikovichi in Moscow, did Siberia start to be connected with the tsardom. This, as well, demonstrates the enlargement of the possessions of Tyumen khans to the east, something which was recognized in the Muscovite State. Afterwards, other names of the Shibanids’ possessions were forgotten and in some cases the concept of the “Siberian Tsardom” or “Siberian Khan” came to refer to some earlier time and to be used for the Tyumen khans, Ibrahim and Kutluk. This reference to the past was created from historical examples which could be used to justify the notion of original Russian possession of the Siberian land. The concept of the “Siberian Tsardom” obviously reflected the interests of particular Muscovite political circles, because it allowed for the consideration of Kuchum Khan as a separatist who seized the throne which was previously in vassal dependence on Moscow, and likewise did not admit his dependence. This latter act legalized and justified the resulting military activities. This concept, elaborated by Moscow diplomats, justified the Siberian khanate being tied into a single category alongside the Kazan and Astrakhan khanates. Their accession could be considered not so much as an unjustified, illegal military aggression, but as an exercise of the right to establish an acceptable form of government for Moscow. The annexation of the Siberian khanate began to be seen as the return of original “fiefdoms” of the Russian sovereign, a right which he received from the old Russian dukes. However, we must understand that the idea of the longstanding tradition of this power was itself developed in Moscow no earlier than the 1570s. Thus, the choice of the name of the “Siberian Khanate (Tsardom)” to define the Shibanid states in the south of Western Siberia reflects the ideology of the Muscovite State from a historic point of view. It had little to do with how its rulers, the representatives of other post-Horde states, and the resident population would call it; for them, the concept of the “Tyumen Khanate” was much closer.


Author(s):  
Salah Berkane

Introduction: The rupture of a hydatid liver cyst in the portal system is an exceptional complication. It has been reported only few observations in the world literature. We report a case a patient that we operated on for a complicated hydatid liver cyst. Observation: This is a 46-year-old patient, a professional driver with a hunting dog hospitalized in the surgical department for obstructive jaundice. Abdominal ultrasonography, computed tomography and magnetic resonance imaging diagnosed 3 hydatid cysts in stage III of Gharbi accompanied by partial thrombosis of the portal vein with an absence of visualization of its right branch. The exploration operation revealed the existence of 3 hydatid cysts that communicate with each other and destroy half of the right liver. At the end of the total cystectomy, a communication of the cyst with the right branch of the portal vein was highlighted and the evacuation of the daughter vesicles followed by a major hemorrhage. The daughter vesicle was evacuated and the right branch of the portal vein was ligated and the bile ducts drained by a transcystic drain. The postoperative complications were complicated by a biliary fistula which dried up on the 19th postoperative day. The patient was discharged from the service on the 30th postoperative day. Currently, he is on Albendazole tablet 400mg / day with well health. Conclusion: The rupture of a hydatid cyst in the portal system remains rare and its diagnosis is well established by modern examinations such as ultrasound, computed tomography and magnetic resonance imaging. The treatment involves surgery and Albendazole but remains quite difficult.


2020 ◽  
Vol 26 (1) ◽  
pp. 33-51
Author(s):  
Katarina Popović ◽  
Maja Maksimović ◽  
Aleksa Jovanović ◽  
Jelena Joksimović

Although the concept of learning cities and the idea of learning being place-based and focused on a region, city, town or community have existed for a long time, it is UNESCO’s work that gave the impetus to the practice, helping to create and spread the network of Learning Cities worldwide. One of the main characteristics of the current concept is the leading role of the local government and partnership with policy makers. The paper challenges this feature with the example of cities that are “rebelling” against the local or national government, but do have learning at the core of their activities. The example of Belgrade is described in detail, where various civic actions (protests, ‘guerrilla’ actions, active participation in public discussions) are analysed from the point of view of public pedagogy. The theory of Gert Biesta and his conception of the public sphere as a space for civic action as well as Elizabeth Ellsworth’s ideas on the active creation of space are the framework in which civic actions are interpreted as important kinds of learning. Lefebvre’s concept of the “right to the city” is also applied. In this way, the whole concept of learning cities might be broadened to include cities without a harmonious relationship with its policy makers, but with strong civic movements and civic actions as a kind of non-formal learning in public spaces.


2015 ◽  
Vol 14 (1) ◽  
pp. 88-93
Author(s):  
Lenon Cardoso ◽  
Thiago Cerizza Pinheiro ◽  
Maissa Marçola Scandiuzzi ◽  
Fernanda Soares Simoneti ◽  
Daniel Ilias ◽  
...  

Aneurysms and thromboses of the portal vein are rare pathologies of the portal system that commonly follow an asymptomatic course. The vast majority of cases are diagnosed as incidental findings during imaging studies. Symptoms of aneurysms are the result of mass effects, while thrombosis symptoms are a function of the liver's ability to form a collateral circulation network in the thrombosis. The scant experience with such cases poses a dilemma for patient management and so the vast majority of authors choose an expectant approach with rigorous patient surveillance and only intervene in symptomatic patients. We report one case of an aneurysm of the portal vein and one case of portal vein thrombosis and discuss management and observation of these patients.


2021 ◽  
pp. 332-357
Author(s):  
Sanja Čahuk ◽  
◽  
Matej Galič ◽  
Jasmina Mitev ◽  
Tea Unger ◽  
...  

Death has been a taboo theme for a pretty long time, however, nowadays it is a topic that occasionally boils out and causes a turbulent reaction in the media. The origin of the concept comes from Greek language, which in translation means "easy death". Euthanasia is most often defined as a patient's execution, with the help of a physician. In most countries, euthanasia is forbidden, but we know the exception of certain countries that they allow to certain limits. Some try to indirectly consolidate euthanasia by alternative approaches such as Palliative care to relieve the patient's pain. However, it is necessary in the light of legal thinking about this topic to open the horizons and look at the moment of death from another point of view. Every individual has the right to life, but does that mean he also has the right to death?


1952 ◽  
Vol 21 (3) ◽  
pp. 375-381 ◽  
Author(s):  
Abbott Y. Wilcox ◽  
Edwin G. Bovill ◽  
Renzo G. Olivetti

Sign in / Sign up

Export Citation Format

Share Document