CHANGES IN HEMODYNAMICS, ENERGY METABOLISM AND PLASTIC PROCESSES IN THE LIVER IN ACUTE SMALL BOWEL OBSTRUCTION CAUSED BY OBTURATION

2020 ◽  
pp. 28-34
Author(s):  
В. Е. Милюков ◽  
Х. М. Шарифова

Цель - выявить закономерности морфофункциональных изменений в печени в динамике развития обтурационной острой тонкокишечной непроходимости (ОТКН). Материал и методы. Исследование выполнено на 18 взрослых беспородных собаках обоего пола массой 17-20 кг, у которых моделировали низкую ОТКН. Все научные эксперименты проведены в соответствии с руководящими документами, руководством по уходу и использованию лабораторных животных Национального института здравоохранения (National Institute of Health - NIH, Бетесда, США) и «Правилами проведения работ с экспериментальными животными», одобрены комитетом по этике Главного военного клинического госпиталя имени академика Н. Н. Бурденко Министерства обороны РФ и локальным комитетом по этике Первого МГМУ им. И. М. Сеченова. В гистологических препаратах, окрашенных гематоксилином - эозином, оценивали изменение площади сосудистого русла печени, определяли уровень содержания гликогена в печени по результатам количественной оценки продуктов ШИК-реакции и уровень содержания суммарных и цитоплазматических нуклеопротеидов по Эйнарсону. Результаты. С 3-х суток после формирования непроходимости отмечается уменьшение площади центральных вен в 3,15 раза по сравнению с нормой на фоне увеличения площади междольковых вен в 1,49 раза и междольковых артерий в 1,55 раза. Уровень гликогена и нуклеопротеидов на всех сроках эксперимента оставался сниженным. Выводы. При формировании ОТКН уже с 3-х суток, несмотря на отсутствие манифестирующих клинических проявлений острой кишечной непроходимости, отмечается изменение организации гемодинамики, свидетельствующее о формировании анастомотического гемодинамического пути, минующего внутрипеченочный. Это является основой уменьшения детоксицирующей функции, сопровождается энергетической и белковосинтетической дисфункцией печени и морфофункциональной основой развития синдрома полиорганной недостаточности (СПОН). Objective - to reveal the patterns of morpho-functional changes in the liver in the dynamics of the development of acute small bowel obstruction (ASBO) caused by obturation. Material and methods. The study was performed on 18 adult mongrel dogs of both sexes weighing 17-20 kg, in which low small bowel obstruction was modeled. All scientific experiments were conducted in accordance with the guidance documents, guidelines for the care and use of laboratory animals of the National Institute of Health (National Institute of Health - NIH, Bethesda, USA) and the «Rules for working with experimental animals», approved by the Ethics Committee for Federal State Institution «Main Military Clinical Hospital named after Academician N. N. Burdenko» of the Ministry of Defense of the Russian Federation and the local ethics committee of the I. M. Sechenov First Moscow State Medical University. On histological sections stained with hematoxylin and eosin, the change in the area of the vascular bed of the liver was evaluated, the glycogen content in the liver was determined by a quantitative evaluation of the products of the Schick reaction and the level of total and cytoplasmic nucleoprotein according to Einarsson. Results. From the 3 day after the formation of an obstruction, the central venous area decreased by 3.15 times compared with the norm, and the area of interlobular veins and arteries increased by 1.49 times and 1.55 times, respectively. The level of glycogen and nucleoproteins remained reduced throughout the experiment. Conclusions. In the formation of obturational ASBO, despite the absence of its clinical manifestations, a change in the organization of hemodynamics was noted since the 3 day of the operation. It indicated the formation of the anastomotic hemodynamic pathway, bypassing the liver, which is the basis for reducing the detoxification function of the liver. It was also accompanied by energy and protein-synthetical liver dysfunction, which is the morpho-functional basis for the development of multiple organ dysfunction syndrome (MODS).

2018 ◽  
Vol 17 (3) ◽  
pp. 92-101
Author(s):  
V. E. Milyukov ◽  
V. G. Motalov ◽  
H. M. Sharifova

The purpose of the work - to identify patterns of changes in the morphofunctional organization of the vascular bed of the liver at different stages of development of strangulational and obturating acute small bowel obstruction (ASBO). Material and methods. The study was performed on 33 adult mongrel dogs of both sexes weighing 17-20 kg. The morphology of the liver in normal was studied on 2 (two) of those dogs. Twelve animals were simulated with a strangulational ASBO. In 12 animals, a low obturating ASBO was simulated. A morphometric method was used to assess the change in the volume of the vascular bed in terms of the degree of change in the area of the vessels per unit area. Results. In the dynamics of the development of the disease, we revealed patterns of changes in the morphofunctional organization of the vascular bed of the liver. Conclusions. In the process of formation of obturating ASBO, in spite of the absence of clinical manifestations of acute intestinal obstruction, the emergence of a basis for the development of polyorganic insufficiency has already been observed from 2 days.


2012 ◽  
Vol 72 (1) ◽  
pp. 25-31 ◽  
Author(s):  
Kevin N. Johnson ◽  
Alyssa B. Chapital ◽  
Kristi L. Harold ◽  
Marianne V. Merritt ◽  
Daniel J. Johnson

2018 ◽  
Vol 81 (4) ◽  
pp. 391-393
Author(s):  
Rahul Gupta ◽  
Arvind K Singh ◽  
Piyush Verma

1955 ◽  
Vol 3 (10) ◽  
pp. 817-822
Author(s):  
John A. Bollinger ◽  
Luke W. Nabers

2009 ◽  
Vol 71 (1) ◽  
pp. 135-140 ◽  
Author(s):  
Mostafa Atri ◽  
Caitlin McGregor ◽  
Mathew McInnes ◽  
Niall Power ◽  
Katayoun Rahnavardi ◽  
...  

2016 ◽  
Vol 55 (18) ◽  
pp. 2595-2599 ◽  
Author(s):  
Angel Torralba-Morón ◽  
Maria Urbanowicz ◽  
Carolina Ibarrola-De Andres ◽  
Guadalupe Lopez-Alonso ◽  
Francisco Colina-Ruizdelgado ◽  
...  

2019 ◽  
Vol 30 (05) ◽  
pp. 434-439 ◽  
Author(s):  
Ivo de Blaauw ◽  
Julia van Ling ◽  
Sanne M. B. I. Botden ◽  
Kim Heiwegen

Abstract Introduction Congenital diaphragmatic hernia (CDH) has been associated with other congenital malformations, such as intestinal rotation abnormalities. However, there is no standard evaluation and treatment of intestinal rotation during initial CDH repair. This study evaluates intestinal malrotation in CDH patients. Materials and Methods All patients with a CDH treated in a high-volume center between 2000 and 2015 were retrospectively evaluated. Demographics, gastrointestinal characteristics, surgical treatment, and abdominal outcomes (acute surgery, small bowel obstruction, and volvulus) were described. Results A total of 197 CDH patients were surgically repaired. In 76 (39%) patients, a malrotation was described at initial CDH repair, in 39 (20%) patients, a normal rotation, but 82 patients (42%) had no report on intestinal rotation. During follow-up (range: 2–16 years), 12 additional malrotations were diagnosed, leading to a prevalence of at least 45% (n = 88). These were mostly diagnosed due to acute small bowel obstruction, of which three had a volvulus. Of the 12 later diagnosed malrotations, 58% required acute surgery, compared to 3% of the 76 initially diagnosed patients (p < 0.001). Conclusion Malrotation is associated with CDH, with a prevalence of at least 45% and in 21% a normal intestinal rotation. “Missed” malrotations have a higher risk on need for acute surgery later in life.


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