[Long-term stenting as an option to ensure the stability of the respiratory tract in a patient with rhonchopathy and overlap syndrome].

Rhonchopathy is a major problem of both a medical and social nature, it is detected in about 33% of the adult population. It should be noted that snoring is often accompanied by a more formidable disease - obstructive sleep apnea (OSA) syndrome, which, in turn, is considered a life-threatening condition. It is known that in severe forms of OSA syndrome, up to 400-500 respiratory stops per night with a total duration of up to 3-4 hours can occur, which leads to acute and chronic lack of oxygen during sleep.

[Vocal fold polyps: modern possibilities of laser surgery in comparison with the use of cold microinstruments].

Objective: To perform a comparative analysis of phonosurgical interventions, which were made using a 445 nm semiconductor laser or cold microinstrumentation in patients with «vocal fold polyp» diagnosis.

Material And Methods: The number of surgical interventions equal 30 regarding vocal fold polyp was done in otorhinolaryngology clinic of Pavlov First State Medical University of St. Petersburg in the period from September 2021 yr.

Influence of Specific Bacteriophage on the Level of Vesicle Formation and Morphology of Cells of Yersinia pseudotuberculosis.

Incubation of Yersinia pseudotuberculosis cells grown on a solid medium with pseudotuberculous diagnostic bacteriophage for 20 min at 37oC led to a significant decrease in the concentration of both components of the system. This effect was absent when the bacteria were grown in a fluid medium. At the same time, this incubation regimen promoted vesicle formation and typical morphological changes in bacteria grown in both surface and suspension cultures.

Genetic variability of Rickettsia spp. in Ixodes persulcatus/Ixodes trianguliceps sympatric areas from Western Siberia, Russia: Identification of a new Candidatus Rickettsia species.

Rickettsia spp. are the causative agents of a number of diseases in humans. These bacteria are transmitted by arthropods, including ixodid ticks.

[DNA detection of pathogens transmitted by Ixodid ticks in blood of small mammals inhabiting the forest biotopes in Middle Irtysh Area (Omsk Region, West Siberia)].

Microtine rodents were captured in two disconnected sampling sites in Omsk region where Ixodes pesulrcatus and Ixodes trianguliceps are sympatric. In blood samples of rodents the DNA was revealed belonging to several ixodid-transmitted pathogens: Borrelia burgdorferi sensu lato (prevalence 20.0 and 6.

Genetic variability of Anaplasma phagocytophilum in ticks and voles from Ixodes persulcatus/Ixodes trianguliceps sympatric areas from Western Siberia, Russia.

Anaplasma phagocytophilum is a causative agent of granulocytic anaplasmosis in different mammals. The presence of A. phagocytophilum was assayed in Ixodes persulcatus, Ixodes trianguliceps ticks and Myodes spp.

[Changes in the ranges of pasture ixodid ticks of the genus Ixodes Latr., 1795 (Parasitiformes, Ixodinae) in Western Siberia].

The character of distribution of two species from the genus Ixodes, the Taiga tick Ixodes persulcatus and Ixodes pavlovskyi in the plain part of Western Siberia is analyzed. The northern border of the range of I. persulcatus in HMAO-Ugra was clarified on the basis of long-term data on the population density of adult and immature ticks (1960-2011).

[Genetic variation and differentiation of wood mice from the genus Sylvaemus inferred from sequencing of the cytochrome oxidase subunit 1 gene fragment].

To ascertain intra- and interspecific differentiation patterns of some Sylvaemus wood mice species (S. uralensis, S. sylvaticus, S.

[Zonal types of host-parasite complexes of arthropods and small mammals in a flat part of Western Siberia].

Within a flat part of Western Siberia distribution of the small mammals and parasitic arthropods connected with them is accompanied by formation zonal host-parasite complexes dated for corresponding landscape zones or subzones: tundra complex dated for a tundra zone; forest complex dated for a forest zone (including subzones northern taiga, middle taiga, southern taiga and subtaiga); forest-steppe complex dated for a northern forest-steppe subzone; steppe complex dated for a southern forest-steppe subzone and steppe. Parasitic specificity of each type of a complex is defined by arthropods of different systematical and ecological groups: a tundra complex is defined by epizoite gamasid mites (Mesostigmata), forest and forest-steppe complexes is defined by tick (Ixodides) and fleas (Siphonaptera), steppe complex is defined by fleas and nidicolous gamasid mites.

[Characteristics of zonal distribution of the gamasid mites connected with small mammals and their nests in Western Siberia].

Analysis of long-term data on the fauna, landscape distribution, and structure of communities of the gamasid mites (Acari:Parasitiformes:Mesostigmata) connected with small mammals and their nests in the plain part of Western Siberia is carried out. By now, presence of 249 gamasid mite species is established in the territory under study, including 193 free-living and 56 parasitic species. Gamasid mites are represented by the maximal number of species on small mammals and in thers nests in northern forest-steppe (102 and 105 species respectively).

[Landscape aspects of host-parasite relationships between parasitic arthropods and the narrow-skulled vole Microtus gregalis (Rodentia) in Western Siberia].

Comparative zoogeographic analysis of outcomes accumulated in the course of long-term investigation the parasitic and free-living arthropods (Acarina: Parasitiformes; Insecta: Siphonaptera) associated with three subspecies of the narrow-skulled vole (Microtus gregalis gregalis, M. g. major, M.

[Parasite fauna of the water vole (Arvicola terrestris) and its nests in the south of Western Siberia].

Fauna of parasitic and free-living arthropods associated the water vole Arvicola terestris and its nests in various landscape zones and subzones of the south of Western Siberia has been studied. Total abundance of gamasid mites and ticks (Gamasoidea, Ixodidae), fleas and nidicolous arthropods in nests is high, and the set of nidicolous and parasite species is quite diverse, but everywhere the parasite fauna is characterized by a small amount of species reaching a high abundance: Laelaps muris on the voles, Haemogamasus ambulans in nests, Ixodes apronophorus and Megpbotris walkeri both on the voles and nests. Parasitic arthropods living on the voles or in their nests are characterized by higher and stables indices of infection, while these parameters for free-living arthropods were variable.

[Combined experimental infection of Microtus gregalis by tick-borne encephalitis and rabies viruses and probable interference].

Narrow-skulled voles (Microtus gregalis) were inoculated with tick-borne encephalitis (TBE) and rabies (RV) viruses isolated in the steppe zone of West Siberia. TBE infection was asymptomatic and nonlethal in all voles. The virus was eliminated from the voles between days 14 and 60 postinoculation.

[Parasite-host relationship of flies and small mammals in the Omsk region].

A generalized analysis of data on a flea fauna, range of their hosts in various natural zones, and features of parasite-host relationships between fleas and small mammals obtained in the Omsk province during long term researches in 1963-1997 is given. 35 flea species are recorded. The most mass species both on animals and in their nest is Ctenophthalmus assimilis; the numerous species are Amalareus penicilliger, Megabothros rectangulatus, M.

[Ecological and epizootic characteristics of various zonal types of natural reservoirs of alveococcosis in the Omsk region].

Natural foci of alveococcis of various zonal types were found in the Omsk region. The final pathogen hosts are red (aspen and birch forests, northern and southern forest-steppe, steppe) and corsac (southern forest-steppe and steppe) foxes and, perhaps, wolves (southern taiga). There are intermediate hosts, that are small mammals of 10 species, among which Clethrionomys voles (northern redbacked, large-toothed redbacked, and bank voles in the southern taiga; northern redbacked voles in the aspen and birch forests and northern forest-steppe), root ones (in the northern and southern forest-steppe, and steppe), narrow-skulled ones and house mice (in the southern forest-steppe and steppe) are of the greatest epizootological significance.

[The spread of hantaviruses in western Siberia].

Studies made in west Siberia established the existence of at least 4 hantavirus types: Puumala, Tula, Topografov, and Dobrava/Belgrade. The authors detected Puumala virus genovariants in voles, Tula virus in sagebrush and narrow-skulled voles, and Topografov virus in Siberian lemmings. The etiological role of the hantavirus Dobrada/Belgrade was defined in the structure of morbidity of hemorrhagic fever with the renal syndrome.

[Biochemical changes in tuberculosis patients with different somatic types].

In 100 patients with various types of pulmonary tuberculosis who were residents in Eastern Siberia, somatic types and glucose postload sugar curves and immunological status were studied and the findings were compared with the specific features of the process and its dynamics during chemotherapy. Thoracomuscular and thoracogracial somatic types were found in two thirds of cases among patients with pulmonary tuberculosis. Persons with these somatic types developed chiefly infiltrative tuberculosis.

[Evaluation of cerebral hemodynamics by transcranial Doppler ultrasonography in carotid endarterectomy].

The authors studied the linear blood flow rate (LBFR) in the middle cerebral artery (MCA) which was measured by means of transcranial dopplerography during carotid endarterectomy in 25 patients. Analysis of the results showed that the changes of LBFR in the MCA correlate with alterations in blood pressure: LBFR in the MCA reduced most during compression of the common carotid artery in patients with considerable affection of the contralateral carotid artery. The maximal increase of the blood flow during compression of the common carotid artery occurred when the initial LBFR in the MCA was lowest.

[Characteristics of intracerebral hemodynamics in occlusive diseases of major arteries of the brain].

The paper deals with the condition of intracerebral hemodynamics in patients with occlusive lesions of major extracranial cerebral arteries studied with transcranial Doppler sonography (TCD). A total of 30 patients were studied: 19 with occlusion of internal carotid artery (ICA) or common carotid artery (CCA), 11 with uni- and bilateral kinking. Clinical examination, ultrasound Doppler sonography and Duplex examination of extracranial arteries, TCD, and cerebral angiography were applied.