Community-acquired pneumonia is one of the most common acute infectious diseases that has a significant share in the structure of mortality from respiratory diseases. It is extremely important to select rational antibiotic therapy which ensures optimal clinical efficacy, improved outcome, reduced rate of antibiotic resistance selection, and minimization of side effects.Methods. The target audience of these clinical recommendations are therapists, general practitioners, pulmonologists, anesthesiologist-resuscitators, and clinical pharmacologists. Each thesis-recommendation about diagnostic and therapeutic procedures has been scored according to the scale of classes of recommendations from 1 to 5 and A, B, C scale of the levels of evidence. The clinical recommendations also contain comments and explanations to these theses, algorithms for the diagnosis and treatment, and reference materials on the use of antibacterial drugs and microbiological (culture) tests.Conclusion. The presented clinical guidelines cover current information about the etiology, clinical manifestations, diagnosis and treatment tactics for community-acquired pneumonia. The presented clinical guidelines have been approved by the Scientific and Practical Council of the Ministry of Health of the Russian Federation in 2021.

ЦЕЛЬ Обновленных клинических рекомендаций состоит в представлении специалистам, в первую очередь анестезиологам-реаниматологам, современных, основанных на методах доказательной медицины данных по этиологии, эпидемиологии, способах диагностики, лечения и профилактики тяжелой внебольничной пневмонии у взрослых. При подготовке настоящего документа использованы и адаптированы научные исследования высокого уровня доказательности, систематические обзоры и метаанализы, рекомендации Американского общества инфекционных заболеваний/Американского торакального общества (IDSA/ATS), Европейского респираторного общества/Европейского общества интенсивной терапии/Европейского общества клинической микробиологии и инфекционным заболеваниям/Латиноамериканского торакального общества (ERS/ESICM/ESCMID/ALAT) и прочих ведущих профессиональных сообществ. Подробно представлены современные рекомендации по дифференцированной антибиотикотерапии пациентов с тяжелой внебольничной пневмонией (ТВП) в зависимости от наличия у них факторов риска инфицирования определенными микроорганизмами, приведены схемы этиотропной терапии при установленном возбудителе. Значительный раздел рекомендаций посвящен респираторной терапии при ТВП, сформулирован ступенчатый алгоритм лечения острой дыхательной недостаточности в зависимости от ее стадии. Детально охарактеризованы наиболее эффективные и безопасные режимы инвазивных и неинвазивных способов респираторной поддержки. В качестве методов адъювантной терапии названы глюкокортикостероиды при невозможности стабилизировать показатели гемодинамики на фоне адекватной гидратации и вазопрессорной поддержки, а также парентеральные антикоагулянты с целью предупреждения тромбоэмболических осложнений. Для профилактики ТВП у пациентов высокого риска предложены антипневмококковые и противогриппозные вакцины. Представлены критерии оценки качества медицинской помощи.

Sarcoidosis is a multi-organ granulomatosis of unknown origin. Modern diagnostic methods allow detecting this disease at an early stage. The absence of specific markers requires a comprehensive approach to diagnosis based on comparison of radiation, clinical, morphological and functional data. The course of sarcoidosis without damage to the respiratory system presents significant difficulties. It is extremely important to understand the time and means of starting Sarcoidosis’s treatment to avoid the early initiation of hormones and cytostatics and, on the other hand, to timely respond to progression and threatening conditions. Methods. Clinical recommendations are based on the analysis of Russian and English publications of the latest sarcoidosis research. The target audience of these clinical guidelines are therapists, general practitioners, pulmonologists, TB doctors, rheumatologists, dermatologists, radiation diagnosticians, immunologists, and clinical pharmacologists. Each thesis-recommendation for diagnosis and treatment is evaluated on an 1 to 5 scale of levels of evidence and an A, B, C scale of the grades of recommendations. The clinical guidelines also contain comments and explanations for the theses-recommendations, diagnostic algorithms, treatment strategies, reference materials on the use of recommended drugs. Conclusion. Current information on epidemiology, clinical manifestations, diagnosis and management strategies for patients with sarcoidosis are covered in the presented clinical guidelines. Approved by the decision of the Scientific and Practical Council of the Ministry of Health of the Russian Federation (2022).

Objective. To assess efficacy and safety of methylprednisolone pulse therapy in patients with COVID-19. Materials and Methods. A retrospective analysis of 57 patients with moderate and severe novel coronavirus infection (COVID-19) receiving methylprednisolone pulse therapy (500 mg/day IV for 2–3 consecutive days) was performed. Pre- and post-therapy examination of the patients included clinical (severity and duration of fever, gas exchange parameters), imaging (computed tomography) and laboratory tests (including C-reactive protein, procalcitonin, D-dimer). Results. Methylprednisolone pulse therapy resulted in improved gas exchange (the mean duration of SpO2 recovery was 3.9 ± 0.25 days), body temperature normalization (the mean time to defervescence was 2.1 ± 0.2 days), significant decrease in inflammatory marker levels (CRP, D-dimer). No patients required an enhancement of respiratory support (transfer to ICU). Methylprednisolone pulse therapy was well-tolerated and did not cause bacterial complications. Conclusions. Methylprednisolone pulse therapy in patients with COVID-19 was shown to decrease activity of systemic inflammatory response, severity of coagulation disorders and contribute to recovery of gas exchange lung function. Given the high efficacy and low cost of methylprednisolone pulse therapy, it could be one of the promising approaches to the management of patients with moderate and severe COVID-19. Further studies are needed to determine prognostic criteria of progression and optimal time for initiation of corticosteroid therapy.

The end of the acute period of COVID-19 does not mean complete recovery. Observation of patients in the post-COVID-19 period showed that a significant number of people experience shortness of breath, fatigue, muscle weakness, sleep disorders, cough, palpitations, so the term post-COVID-19 syndrome was coined. The examination to identify the causes of complaints of COVID-19 convalescents should include lung function assessment.The aim of the study was to assess the dynamics of lung function 4 months after hospitalization for COVID-19.Methods. 31 patients (26 males, the median age was 49 years) underwent traditional pulmonary function tests (PFTs) (spirometry, body plethysmography, test of diffusing lung capacity) and impulse oscillometry (IOS). Results. During the 1^st visit, the average PFTs and IOS parameters were within the normal range in the whole group, apart from the diffusing lung capacity (DL_CO), which was reduced mildly (on the border with moderate) in 77% of patients. During the 2^nd visit, which was conducted on average 102 days after the 1^st one, 58% of patients demonstrated abnormal lung diffusion capacity. The second assessment revealed a statistically significant increase in the slow and forced vital capacity (VC and FVC), the forced exhalation volume in 1 second (FEV₁), total lung capacity (TLC), DL_CO, and a decrease in the ratio of FEV₁/FVC and the residual lung volume to TLC ratio.Conclusion. Post-COVID-19 patients show a statistically significant improvement of their lung function 4 months after hospital discharge. A systematic follow-up is essential for such patients to detect lung function abnormalities and correct them.

The article provides an overview of literature on severe community-acquired pneumonia (CAP) and the most recent data on the epidemiology and etiology of CAP, and describes the antibiotic susceptibility of Streptococcus pneumoniae — the leading causative agent of CAP. The article discusses demonstrative diagnostic data and emphasizes the need to determine as early as possible the oxygen saturation of arterial blood using a pulse oximeter, as well as to dynamically measure the concentration of inflammatory markers in blood and carry out a comprehensive microbiological examination. The authors argue for the advantages of computed tomography over conventional x-ray examination and point out the usefulness of ultrasound to diagnose and dynamically assess the condition of lung tissue in the course of treatment. The article also provides up-to-date recommendations for the differential antibiotic treatment of severe CAP patients based on the existence of risk factors making them susceptible to the infection with certain microorganisms, and suggests etiotropic therapy regimens for cases where the causative agent has been identified. It also emphasizes the need for a timely prescription of combined antibiotic therapy with intravenous administration, suggesting the possibility of de-escalation based on microbiological data. A substantial portion of the overview focuses on the respiratory therapy for CAP, outlining a graded algorithm for the treatment of acute respiratory failure based on stage, and describing in detail the most effective and safe invasive and non-invasive respiratory support strategies. The proposed adjuvant therapies include glucocorticosteroids if it is impossible to stabilize hemodynamics by means of adequate hydration and vasopressor support, as well as parenteral anticoagulants to prevent thromboembolic complications. Pneumococcal and influenza vaccines are suggested as CAP prevention strategies for high-risk patients. The publication seeks to highlight the most critical aspects of the draft of the updated clinical recommendations for CAP and encourage their wide discussion across the community of Russian intensive care anesthesiologists and intensivists.