COVID-19-associated acute respiratory distress syndrome versus classical acute respiratory distress syndrome (a narrative review).

Coronavirus disease 2019 (COVID-19), caused by the novel coronavirus, Severe Acute Respiratory Syndrome-Coronavirus-2 (SARS-CoV-2), led to the ongoing global public health crisis. Existing clinical data suggest that COVID-19 patients with acute respiratory distress syndrome (ARDS) have worse outcomes and increased risk of intensive care unit (ICU) admission. The rapid increase in the numbers of patients requiring ICU care may imply a sudden and major challenge for affected health care systems.

TRANSCATHETER VERSUS SURGICAL AORTIC VALVE REPLACEMENT: FIRST EXPERIENCE WITH A NEW TAVI SYSTEM.

Objective: The aim: to reveal early results after transapical TAVI with a new self-manufactured XPand system, comparing them with SAVR and common transfemoral TAVI outcomes.

Patients And Methods: Materials and methods: Eighty-four patients (mean age 79,5±10,2 years) with severe aortic stenosis were operated on from January 2016 to February 2019. Nine patients had undergone the TAVI (two with transfemoral access route and seven with transapical, using the XPand system).

MORPHOLOGICAL CHARACTERISTICS OF ACELLULAR DERMAL MATRIX MANUFACTURING.

Objective: The aim is to develop a method of the acellular dermal matrix manufacturing from pig's skin dermis while preserving the native structure.

Patients And Methods: Materials and methods: Combination of physical and chemical effects on the dermis underlies in the process of an acellular dermal matrix manufacturing. Dermal collection of 1.

Morphogenesis of maxillary sinuses in infants, during early and first childhood.

Objective: The aim: To study the peculiarities of the structure and to see the development of maxillary sinuses in infants, during the early and first childhood periods of human ontogenesis.

Patients And Methods: Materials and methods: The study of the peculiarities of the development and formation of the maxillary sinuses' wall was carried out on 50 species of the upper jaws, turtles and sections of the head of the human corpses during different periods of ontogenesis (in infants, during early and first childhood) with the help of histological examination, preparation, CT scan, radiography and morphometry.

Results: Results and conclussions: In infants and during the early and first childhood periods of human ontogenesis in the MS there are changes in both quantitative and qualitative nature.

Influence of metabolic stress on the inheritance of cell determination in the moss, Pottia intermedia.

Epigenetically-determined apogamy in aposporous regenerants of the moss Pottia intermedia persists during vegetative propagation, the capacity of apogamy being inherited by individual aposporous protonemal cells. To test Bauer-Lazarenko's proposal that stable apogamy in mosses may be due to some self-replicating cytoplasmic factor, the effects of different metabolic stress treatments on the expression of apogamy have been tested. Chronic metabolic stress caused by long-term growth of autotrophic aposporous protonema on mineral medium with 0.