TY - SER AU - Udut,Vladimir V. AU - Naumov,Sergei Alexandrovich AU - Udut,Elena V. AU - Naumov,Sergei Sergeevich AU - Evtushenko,Diana Nikolaevna AU - Chumakova,O.N. AU - Zyuzkov,Gleb N. TI - Mechanisms of the effects of short-term inhalations of Xe and O2 gas mixture in the rehabilitation of post-covid ventilation failure KW - постковидные осложнения KW - легочный сурфактант KW - дипальмитоилфосфатидилхолин KW - молекулярный электростатический потенциал KW - ингаляции газовой смесью ксенона и кислорода KW - статьи в журналах N1 - Библиогр.: 15 назв N2 - The article presents a theoretical rationale and a clinical case of relief of post-COVID ventilation failure by inhalation of Xe and O-2 gas mixture. Pneumonitis of coronavirus etiology transforms saturated phospholipids of surfactant into a solid-ordered phase, which disrupts surface tension, alveolar pneumatization, and alveolar-capillary gas exchange. Using molecular modeling (B3LYP/lanl2dz; GAUSSIAN09), we demonstrated that Xe atom due to the van der Waals dispersion interaction increases the distance between the phospholipid acyl chains providing a phase transition from the solid-ordered to liquid phase and restored the surface-active monolayer surfactant film. A clinical case confirmed that short-term inhalations of the Xe and O-2 gas mixture relieved manifestations of ventilation insufficiency and increased SpO(2) and pneumatization of the terminal parts of the lungs UR - http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001004091 ER -