Development and functional significance of the pulmonary surfactant system

2021 ◽  
Vol 25 (4) ◽  
pp. 321-331
Author(s):  
Ruslan K. Shakhbanov ◽  
Madina N. Asadulaeva ◽  
Saidat N. Alieva ◽  
Alima A. Alimkhanova

Relevance. Prevention of the development of postoperative acute respiratory distress syndrome during operations on the descending thoracic aorta increases the effectiveness of therapy. The study of damage to the surfactant complex during ischemia and reperfusion of the lungs is relevant, since it involves the prophylactic use of the surfactant preparation during operations on the descending part of the thoracic aorta, which are characterized by a high risk of postoperative acute respiratory distress syndrome. Objective: to increase the effectiveness of pharmacological and respiratory therapy of acute respiratory distress syndrome, as well as to identify the role of the surfactant system of the lungs in the onset of inflammation against the background of tuberculosis and the development of regeneration mechanisms that affect the course and outcome of the disease. Materials and Methods. The study involved 24 people, including 14 volunteer patients with a diagnosed respiratory disease in an acute course (while the whole group received the drug from the study as an additional therapy). The sample of 14 people was formed solely due to the compliance of these patients with the criteria that were established before the start of the study of the drug, which had postoperative acute respiratory distress syndrome of various origins in their diagnosis. Results and Discussion. For a comprehensive laboratory determination, an algorithm was used that corresponded to the state standard to identify postoperative acute respiratory distress syndrome. For each participant in the experiments, it was proposed to develop a plan of treatment procedures, taking into account individualization and standardization. Conclusion. Some of the resulting data are collected with respect to the surfactant pulmonary system, which is presented in a compactor model format. A number of basic components are reflected here, which are classified according to cellular and non-cellular factors. At the same time, the surfactant substance helps to reduce the pronounced swelling, which can significantly reduce the process of sticking of the alveolar structures during inhalation. All this added up to the normal system of gas metabolism in the lung structures, including the control of the mucociliary system, which acts as a natural stimulator of the function of alveolar macrophages.

2020 ◽  
Vol 49 (10) ◽  
pp. 418-421
Author(s):  
Christopher Werlein ◽  
Peter Braubach ◽  
Vincent Schmidt ◽  
Nicolas J. Dickgreber ◽  
Bruno Märkl ◽  
...  

ZUSAMMENFASSUNGDie aktuelle COVID-19-Pandemie verzeichnet mittlerweile über 18 Millionen Erkrankte und 680 000 Todesfälle weltweit. Für die hohe Variabilität sowohl der Schweregrade des klinischen Verlaufs als auch der Organmanifestationen fanden sich zunächst keine pathophysiologisch zufriedenstellenden Erklärungen. Bei schweren Krankheitsverläufen steht in der Regel eine pulmonale Symptomatik im Vordergrund, meist unter dem Bild eines „acute respiratory distress syndrome“ (ARDS). Darüber hinaus zeigen sich jedoch in unterschiedlicher Häufigkeit Organmanifestationen in Haut, Herz, Nieren, Gehirn und anderen viszeralen Organen, die v. a. durch eine Perfusionsstörung durch direkte oder indirekte Gefäßwandschädigung zu erklären sind. Daher wird COVID-19 als vaskuläre Multisystemerkrankung aufgefasst. Vor dem Hintergrund der multiplen Organmanifestationen sind klinisch-pathologische Obduktionen eine wichtige Grundlage der Entschlüsselung der Pathomechanismen von COVID-19 und auch ein Instrument zur Generierung und Hinterfragung innovativer Therapieansätze.


2017 ◽  
Vol 1 (15) ◽  
pp. 44
Author(s):  
Mircea Octavian Poenaru ◽  
Anca Daniela Stănescu ◽  
Delia Carp ◽  
Romina-Marina Sima ◽  
Liana Pleș

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